06 November, 2015


Theories / urban legends that have been repeatedly proven/disproven.

Saturated fats bad, trans fats good. Saturated fats bad, trans fats worse.

People swallow 8 spiders a year

People listening to War Of The Worlds on radio thought it was true, causing mass hysteria. Nope. Effect was greatly exaggerated.

Woman sues McDonald's because she gets burned by hot coffee. Sue-happy Americans, need for ridiculous/obvious warning labels, etc. Turns out she had 3rd degree burns and was hospitalised for 8 days. Also, McDonald's has had numerous complaints about their coffee being too hot.

Fake Medela Bottles?

I have 4 (5oz/150ml) Medela bottles that came with my pump. These are 100% genuine. I also bought 3 of the same size bottle from Amazon (http://amzn.com/B000WPVCQE), sold by Amazon with free international shipping:
At first, I thought they were just weird - they were much softer than my original bottles. One of them even had a dimple after steam sterilisation and I threw it away. Maybe the US version is like that. Then I bought the 8oz/250ml bottles, also sold by Amazon, but only shipping within the US this time:
(questions: are "Amazon Export Sales LLC" and "Amazon.com LLC" the same? Does Amazon keep stock from different sellers separate? I mean if I buy from seller A, am I definitely getting stock supplied by them? This is a big issue in counterfeits.)
And these are similar to my original 4! So I took a closer look at my 150ml bottles and found more differences! I think those I got from Amazon are fake!

The first problem is the fakes are noticeably softer/thinner. They're also not uniform. There are some spots on each bottle where they dent easily if you press them. As I mentioned, one had a permanent dent after steaming. The originals are hard all around. So are the 8oz bottles.

The second, most objective, difference, is the weight/mass:
Original on left, fake on right
The original weighs 21.5g, the fake weighs 19.9g. (note: measure more bottles to improve confidence)

Third difference, and easiest to check. The bottom:


Original says something like -25°C - +110°C. Fake has no wordings, but has these 2 arc-shaped impressions. I think these are used to eject the bottle from the mould. 8oz bottles are like the original, words and no arcs.

Last difference, the most interesting - colour-shifting ink! Not sure if this is an intentional copy-preventing feature. This is harder to capture.
Same original bottle, different angles

Same fake bottle, different angles

Ok the original bottle, when held at a reflective angle, has ink that appears silver, but turns darker when viewed straight-on. You'll see that the fake's ink appears the same colour regardless of angle. Again, the 8oz bottle also has colour-shifting ink.

So, I have good reason to believe there's something up with the bottles, and they're probably fake. I just ordered 2 more sets of 5oz and 8oz bottles, both delivered within US, so we'll find out more.

Bonus: this might be an issue with the fake caps, but my instinct says it's just bad design. The cap has an inner rim that flattens easily. In the picture below, from the 12 to 3 o'clock position, that's the original rim. From 7-11, it's flattened outwards. Once this happens, the cap will leak.

21 October, 2015

Where To Buy Baby Stuff In Singapore


I bought the Parklon playmat. They also sell Medela accessories. Shipping is only $4.90. They use Ninja Van for delivery.

I actually bought the Medela pump from them at the Expo, but they have an online store too. I bought some pump accessories from the online store. Delivery is $20.

How could I leave out the Amazon. The going rate for breastmilk bags in Mothercare is SGD64 for 100, regardless of brand.
On Amazon, they're less than USD14 with free international shipping.

There are other sites like Qoo10 that I haven't tried. I wouldn't buy from Groupon.


Baby Hyperstore (https://www.facebook.com/Babyhyperstore) Kaki Bukit
Biggest place to buy strollers I've seen. Got my Quinny from here. Has lots and lots of brands. It's funny, they're the only place I've found selling some big brands like Quinny. While you're here, check out Baby Kingdom too.

Baby Kingdom (http://www.babykingdom.com.sg/) Kaki Bukit, Shun Li Industrial Park
I already bought my stroller when I found this store, so I didn't look at their strollers. They have a wide range of clothes, bathing stuff, pacifiers, etc. Best to visit these 2 shops together. They're in the same building.

First Few Years (http://firstfewyears.com.sg/)
Bought a crib from here. Oh they also have an online store with fast, reasonable delivery. I bought my bag for my Quinny here.

This is probably the biggest chain. Has a wide variety, but doesn't have some cheaper brands.

Kiddy Palace
Looks like a tiny shop but they have a lot of things!

16 October, 2015

Becoming An Expert

Helping people with computer stuff got me thinking - people come to me for help because I know more, but I've also learned a lot because people keep coming to me. It's a cycle. Does this also apply to jobs? I imagine for jobs with no formal training, a lot of what people know is from experience. How far can you take this? Which jobs can you start with no specific knowledge and learn as you go?

12 October, 2015

Instrumental Song

I've finally caught the name of the instrumental song stuck in my head! Do you know how hard it is to search for an instrumental song? Anyway, it was "Music Box Dancer". It actually made it into the top music charts, which is unexpected with a title and style like that.

23 September, 2015

Shapeways' Steels

Right now, Shapeways has 8 kinds of steel:

Matte Bronze, Polished Bronze

Matte Black, Polished Grey
Matte Gold, Polished Gold
Polished Nickel

They're in 2 groups based on the cost. But what's the difference between the steels? Their website isn't very helpful. I think the second group is the plated group. From plain steel, they can plate it black, gold or nickel, then polish it or not.

Then what's the difference between plain stainless and the bronzes? I can't figure this out since plain stainless is already 40% bronze. Are they plating it with more bronze? I don't think so, since it would cost more and put it in the second group. So, I tried ordering something in polished bronze:
The left is plain stainless steel, and the right is polished bronze. Their stainless is already a bit yellow, but the bronze is dark brown. Polished bronze looks a bit rougher than stainless. Hmm so there's a difference, but I still don't know how bronze is made.

More on their metals: it looks like all their other metals (namely, platinum, gold, silver, precious plated metal, brass and bronze, excluding experimental aluminium) are made by the same process. They print in wax, make a plaster mould around it, then cast that metal. Only stainless steel is printed directly in the metal (although it's very porous). You can also buy the wax form and cast it yourself. These metals are more labour-intensive and hence more expensive, but much more detailed than stainless steel.

31 August, 2015

The Spam Solution

What's the solution to spammers, telemarketers, conmen and trolls?

What's the best way to deal with telemarketers? It is NOT by having a blacklist, screening calls or a do-not-call registry. This is the most basic solution, one that should be available everywhere in 2015 but sadly isn't. But what's wrong with this? It just allows them to concentrate their efforts on those who aren't blocking them. Oh that's not your problem you say? It still congests networks, and you have to pay (e.g. some of your credit card fees go to combating fraud) indirectly. Also, once enough people have blocked them, they'll concentrate their efforts on defeating the filters or flat out ignoring the registry. It's like trying to fix a dripping ceiling by painting it - you're just diverting the problem to a less obvious symptom.

So what's the solution? The solution is to occupy them. Fruitlessly. Some people pretend to be interested and lead them on for hours. You don't have to keep talking to them, you can simply ask them to wait while you look for a pen, or make them repeat everything. We have to take this one step further and automate it. A simple AI with prerecorded messages:
(wait for pause)
Oh that sounds great.
(wait for pause)
Can you clarify that for me?
(wait for pause)
Hang on, I need to write that down. Let me find a pen.
(30 seconds of rustling)
Ok I-
(pen dropping, 1 minute of rustling and footsteps)

This will tie them up and prevent them from hassling others. What does this have to do with trolls and online spam? The point is, just blocking and banning them is a cat-and-mouse game. We need to keep them busy.

At this point, I need to introduce the concept of phasing, as used in World of Warcraft. Phasing means something appears different to different people. We need to apply this to trolls. Do you see where this is going? Let them post. Let them do whatever they want. But only they can see it. To them, their junk looks like normal, but it doesn't appear to anyone else. A global ignore list, if you will.

This will work for all kinds of things. Spam, trolls, people trying to start arguments, even people trying to game voting systems. Oh but they can log out and see, as the public, that their works are gone. This needs to be coupled with IP monitoring to work. Hey, ad companies already monitor IPs to see if it's an unsuspecting customer before serving malware. If it's a server checking, they serve a clean ad. Even Wikipedia blocks anonymous users who misbehave, so it can be done.

26 August, 2015

vPOST Facts

Some things I've discovered about vPOST (this isn't a complaint):
  • I ordered 2 packages in 1 shipment, and they arrived on different days. So don't panic if only half your order arrives. DHL has done the same thing, they've made 2 deliveries ON THE SAME DAY.
  • When no one was home to accept the package, they automatically diverted it to the nearest PopStation. Not too bad, as long as you have one nearby.
  • Each package seems to have a unique ID. Current format is OJA####, where # is a number. They seem to be issuing these sequentially because looking back at my old packages, they were OHP####, OHQ####, OHR####, OHT####, OHZ####. I don't have any use for this piece of information yet, it's just interesting.
  • When you ship your packages, each will be assigned another number, VS1234567890 (VS then 10 digits). These also seem to be assigned sequentially, with no check digits. YOU CAN ENTER THIS NUMBER INTO http://www.speedpost.com.sg/ TO GET DETAILED TRACKING INFORMATION. I'm only seeing these numbers on my packages from June 2015. I say the numbers are assigned sequentially because all numbers are used - you can enter a random number below VS0000105000 and see its tracking, unlike say credit card numbers where only a few work. Better yet, get a tracking number someone posted on vPOST's Facebook page and see if their case was resolved. Hmm this seems rather insecure. Someone could run a script to mine all the tracking data, especially since there's no captcha protection. Also, this is an easy way to see how much traffic Speedpost handles and what's their error rate.
  • My other package had a different tracking number format, SS######A############ (6, then 12 digits). This didn't work on the Speedpost website, but it worked on http://www.singpost.com/. Hmm I wonder what's the difference between the 2 tracking numbers? Both were parcels.

28 July, 2015

Box Designs For Silhouette

Tried making coin pouches using a box design
One of these websites had designs for boxes

Found these box designs and their 2D plan/net/forms that are perfect for small Silhouette projects:
You might need the Designer Edition, but it's very easy to convert the line patterns to Silhouette format, even if you do it manually.

21 July, 2015

Shapeways July 2015

Shapeways had free international shipping again! The last time was in 2012 (I don't think they had any in between), when I got:
Material Sample Kit
Cubichain bracelet
iPhone 5 case

This time, I picked up more ready-made products (the Material Sample Kit doesn't seem to have changed in the past 3 years) including:

I also tried my hand at some designing. Now, I don't have any 3D design skills, but they have a nifty tool that lets you upload a black and white picture, and converts it to "3D", with the darkness defining the height. It lets you do some interesting things.

Note on shipping: International shipping usually costs USD19.99, and I suspect they use the same-sized box, which is 19.5 x 14 x 11 cm = 3003 cm³, or 0.6 kg volumetric weight. HSG will round it up to 1 kg, which is about USD6. Combined with Shapeways' shipping within US, using HSG will be cheaper, but it's still a hefty shipping fee. 3/3 of my packages used this box, from 1 to 6 items inside.

Yeah! My stuff is here!

Some notes on my creations:
1.2 mm diameter holes in 4 mm thick white strong and flexible won't clear properly and need to be drilled/filed
3.3 mm thick and 2 mm wide white strong and flexible should be strong enough to make a clip. 

22 June, 2015

vPOST Summer Spin & Win

20% off air freight - SUN20OFF
30% off vshop4u - SUNVSHOP30
$30 off minimum spend $80 - SUN30Z
$10 fixed shipping rate - SUN10OFF (for one package up to 1.5 kg)

Might only be until 20 July 2015. http://www.vpost.com.sg/summersale

09 June, 2015

Fitbit Charge HR

List of continuous Heart Rate Monitors (HRM)
This category of device needs an agreed-upon name. Is it fitness band, activity tracker, bracelet, whatever? Some also function as smartwatches. Or is it smart watches?

Ok the Charge HR might be the "best" continuous HRM on the market right now, simply due to its small size, meaning you can wear it for longer e.g. while sleeping. But it's still not very good. Sadly most problems are software/UI related.

  • Rechargeable, 5 day battery life
  • Water resistance: declarations are all over the place. Some say only splash-resistant, some say 10 metres / 1 atm:
  • Sensors: optical HRM, 3-axis accelerometer, altimeter, one button
  • Output: OLED display, vibation motor

Controls on the tracker itself are simple and limited.
  • Press button to turn on display and change views
  • Hold button to start/stop exercise mode
  • Double-tap to quick view. I've noticed the double-tap window is very narrow. Most of the time I'm tapping too fast. If your double-taps don't work, try tapping more slowly.
Settings can only be changed on a computer/smartphone. You can change what views are displayed and their order (e.g. if you don't want stairs climbed you can turn it off) and what you see when you double-tap (e.g. time, heart rate, steps...)

  • It shows how much charge it has, while charging. If you press the button.
  • HRM works pretty well and is pretty accurate, but could be better. See below
  • Steps is pretty accurate e.g. it can continue measuring when you stop swinging and hold your hand up, like you're reading the time
  • I've gotten 4+ days of battery life, but only syncing once a day

  • Cannot display time continuously. They should have this option, even at the expense of battery life.
  • Does not sync with Apple's Health, and it looks like they're not planning to (https://community.fitbit.com/t5/Feature-Requests/Integrate-with-iOS-8-Health-App/idi-p/319432) meaning this statement: "we’ve been the leader in developing direct partnerships through our open API with hundreds of the most popular health apps, wellness programs, incentive systems" is nonsense.
  • HRM takes very long to update and does not tell you the strength of the signal. See below
  • OLED screen flickers. Small problem. Speaking of flickering, the green HRM lights flicker very obviously, but you can't tell because they're against your skin most of the time. Are all optical HRMs like that?

HRM Function
Ok I got this mainly for the HRM function, not so much for the pedometer and certainly not for the water/food tracking. So how does the HRM do? In short: it works most of the time, it's decently accurate, but you can't tell whether it's working or not.

What do I mean I can't tell? There are 2 problems:
1. It's very slow to update.
If you take the tracker off your wrist, it still shows the last HR for a while. i.e. it takes up to a minute to tell you that signal is lost. Similarly, when you put it on, it takes a while to lock on to your HR.
This creates 2 problems: 1) it's useless for exercise, where an interval may only be 30 seconds long. 2) it's very hard to find a good position on your wrist to measure HR, due to the slow and unreliable feedback.
Fitbit says it updates every 5 seconds, but I've seen it take longer to update. Now, I'm guessing Fitbit decided it's better to show an outdated reading than no reading. Maybe this happens regularly and they don't want people adjusting the watch all the time. They should make the HRM update as fast as possible (at least once a second) when displaying HR.
2. There's no indication of the signal strength.
I have this very old Casio JP-100W watch that also can measure HR:
From http://www.digital-watch.com/DWL/1work/casio-jp-100w/
This ancient device has something the Charge HR lacks. No, not a continuous time display. When reading HR, the JP-100W has a bar that pulses, like a music equaliser. The length of the bar that fills up shows how good a reading it's getting. Similarly, there are HRM apps for smartphones. These will show a real-time graph, like an ECG. Why is signal strength so important? 1) like above, it gives immediate feedback on which is the best position to measure HR 2) it lets you compare how accurate the reading is, with your pulse. I'm not saying Fitbit needs to display a graph. Only something as simple as making the beating heart on the display beat in sync with your heartbeat. Right now, that animated icon serves no purpose.

The Apple watch is only supposed to measure HR every 10 minutes. I thought this was supposed to be better, but not by much. The only HR data you can see is 5-minute averages. Worse still, you can't export this data.

Ok so I've seen a few reviews that say Fitbit's software is their strong point, which is... odd. Because I find it very inconsistent. While writing this review I am reminded of how thorough and unbiased a private blog can be. Here are the problems:
  • On every graph other than HR - specifically steps, sleep, calories, distance, floors - there's an icon to maximise the graph in the top right. For some reason, HR doesn't have it.
  • The whole software experience feels like HR is an addition, rather than an integral part of the design. Quick, when you think HR, what's the most important graph you want to see? If it's "my HR over the last x hours", Fitbit has no idea what we want. Because they chose to make resting heart rate the primary graph, which is odd, because RHR isn't going to change that much.
  • You can export your data to Excel format from the website! Yay! Except HR isn't included. Did you miss the fact that HRM is possibly your most distinctive feature, Fitbit? You do realise that every other fitness band can measure steps, right? Example threads from their forums:
Export Heartrate
charge HR export does not include HR data
Does NOT export HR info
HR Data Export
Heart Rate Graphs & Data
How can I export HR data to CVS or XLS file?
And the feature request: https://community.fitbit.com/t5/Feature-Requests/Ability-to-export-HR-data/idi-p/794526
It's not a good sign for their development and customer service that some of these threads for such a simple feature were started in January.
  • At last, a problem not related to HR: when you enter the "Friends" section, what do you expect to see first, a list of friends? Not Fitbit, they show you something called "7 Day Steps". Which may be the same, but with step count. Then why is my list of friends under Account > My Name > Friends?
  • You cannot see messages you've sent. Threaded conversations are too advanced or something. (they don't have it)
  • What on Earth is this grid supposed to represent?
Yes, I figured out what it means. It's very "innovative" to use a rolling calendar, where the bottom row is always the current week. And it's "so" intuitive, they don't need any labels!

So, verdict is: with current technology, a very basic, limited (e.g. it's possibly the most inaccurate for HR monitoring during exercise) 24-hour HRM is possible. The sad thing is, its use is hampered by very odd software decisions. If you're looking for one, be sure of the problems first.

Work in progress...

03 June, 2015

Kickstarter Scams

Yeah, we all know about the Kobe beef jerky scam and the massive, persistent Scribble, and there are lists of scam projects out there, but they all only mention suspended or canceled projects and none dare to list the real meat: how many projects took the money and ran, and how much did they escape with? I'm sure these are facts Kickstarter doesn't want made public, and I'm surprised they haven't taken down these scam projects. Now, for the first post, I'm going to be stringent on the criteria and only include definite scams:
  • Successfully funded
  • 0 delivered
  • At least 6 months overdue
  • 3 months with no updates

And I'm going to start with the biggest:
Eyez™ by ZionEyez HD Video Recording Glasses for Facebook 
Raised USD$343,415 on 1 August 2011. Last update 10 April 2012.
I think it's important to distinguish projects that were scams right from the start, from those with good intentions but ran into problems. Looking at the pictures on their campaign page, it's clear they never had a working prototype and they're just showing a bulky pair of sunglasses. This project sold (or rather, was going to sell) sunglasses with a built-in video camera, the cheapest of which was $150 a pair.

Arts for Veterans
Raised USD$2,635 on 10 March 2013. Last update 28 November 2013.
This project wanted to turn military uniforms into paper to raise money?

MD-Pen [Minimal & Durable pen]
Raised USD$14,660 on 9 August 2012. Last update 6 February 2013.
This is odd because it's just an aluminium pen. What's more odd is backers were promised their pen if they backed another pen, the CoCoPen.

Triumvir Pen : A multifunction alloy pen
Raised USD$20,372 on 22 September 2013. Last update 11 January 2014.
You'd never guess pens were so hard to make from the number of pen projects. The lack of updates and manufacturing details in this project don't help with its honesty.

Asylum Playing Cards
Raised USD$25,146 on 1 November 2012. Last update 14 July 2013.
This project is significant because it's the first to have a lawsuit filed against it: Kickstarter fraud: Washington files first consumer protection lawsuit involving crowdfunding This might set precedent for other scams to follow, but so far nothing has come of it 6 months later.
This was just a project for custom-printed playing cards, so no technical challenges, yet they still failed. In the interest the lawsuit generated, it was revealed that the creator didn't even have permission to use the artwork from the owner! For someone who has no qualms about stealing designs, I don't think the creator of this project ever intended to deliver. A scam right from the start.

VACHEN Smart Watch
Raised USD$110,128 on 30 May 2013. Last update 5 December 2013.
Abrupt silence. No explanation of what went wrong, how the money was spent. It's as though the creators died. Or took off.

Some Delivered

The previous criteria were extremely strict. Here are some "honourable mentions" also scams, but managed to deliver some broken products.

The Limb.al
A stiff phone cable that was supposed to also work as a mount. Actually a repackaged product.

Apollo AP-1 Tactical Flashlight

A key + wallet that was poor quality and only delivered a few units.

Raised a whopping $1,026,292 from 7,658 backers on 23 February 2013
E-ink curved metal band watch. I can't believe they actually managed to make a few and this wasn't a scam from the start. This project is recently under attention because the creators say they've run out of money, yield was lower than expected, and each unit will cost $300 - compared to the most expensive $129 pledge. Or is that $300 from this point, in addition to the million they've spent? People are debating whether they're being truthful or just absolving responsibility.

Modulus pen and stylus
I like this project because even while it was raising money, the creator had an argument in the comments. During manufacturing, they changed specs without consulting anybody. Last of all, they blamed empty envelopes on the postal service and lots of people didn't even receive the empty envelopes. The cherry on the cake is the creator has deleted their account.

Alpha - World's Best Wallet
It's 2 aluminium plates and an elastic band. Just like the zillions of other minimalist wallets out there. Yet somehow this managed to screw it up with crappy design + poor quality + deviating from promised + of course, not delivering all products.

Magic Phone Stand
A stiff phone cable that was supposed to be able to support the phone as a stand. I can't tell if they've delivered any products. With the last update in January 2015 but comments as recent as May, the creators seem to have forgotten how to post updates.


As a bonus to you: projects that still claim to be working hard, but are obviously scams. You must have heard of the first 3...

The Dragonfly Futurefön
Raised USD$687,341, and has the cheek (both them and Indiegogo) to be on InDemand (continue to accept orders)
An amazing phone/laptop/tablet thing with dual hinged screens and a hinged keyboard. No point quoting the specs because they're all made up anyway.

Raised a staggering USD$1,657,585 and also on InDemand!
A projection watch. Never mind the defying-the-laws-of-physics low angle projection and projecting darkness, or the fact that all their campaign images are renderings or photoshopped images (i.e. they don't have the simplest prototype). There are critiques out there of their electrical circuits showing they really have no idea what they're doing.

Raised USD$845,139
Oh man, where to start with this one. Allegations of a "backer party" where people backed and were refunded in cash to drive up rankings and inflate backer numbers. Legal threats against whistleblowers. Just look http://aristscam.com/

Moment Smartwatch
Raised USD$447,900
This project looks just as impossible as Ritot and CST-01, and raised almost half a million dollars, yet somehow people don't mention it.

Tango Super PC
The fact that they had 2 campaigns on both KS and IGG should have raised flags. A pocket-sized computer that claimed to be able to run full Windows (not RT or some hamstrung version)

MOTA SmartRing
Yet another project on both crowdfunding platforms. Is this not already a massive red flag, without promising something impossible with today's technology?

AMPY: Power your devices from your motion
Charge your phone by walking! Free energy! See why it won't work, or at best, be really really disappointing: http://drop-kicker.com/2014/11/ampy-and-juse/ 30 minutes of running to charge an iPhone 6 by 2.5%! Reading their statements gives the impression they're leaning towards intentionally misleading, rather than well-intentioned with no grasp of physics.

02 June, 2015

Continuous Heart Rate Monitors

Questions about Jawbone Up

Activity / fitness monitors are exploding in popularity, but measuring HR isn't a standard feature yet. Where available, it doesn't work perfectly, and of the products that can measure HR, few are actually meant to measure continuously. There seem to be 2 methods: green light and ECG. Hopefully the release of the Apple Watch means they're maturing somewhat. Apple Watch also shows the smartwatch and fitness tracker categories might merge. This post is to focus on those meant to measure continuously, including while sleeping.

Continuous, 24-hour
Fitbit - Charge HR, Surge. These are designed to continuously measure your HR. The Charge HR is the smaller one with a tiny OLED screen that's more like a fitness band. Charge HR - 5 day battery life, splash water resistance, auto sleep mode. Only smartwatch capability is caller ID. Non-replaceable strap.

Basis - Peak. Watch sized and shaped. 5 ATM water resistance. 4 day battery life.

Apple - Watch. "Continuous" recording every 10 minutes. No sleep tracking. Too big to wear to sleep anyway.

Microsoft - Band. Looks like it's trying to copy compete with Apple. It's more like a smartwatch with health features. Has a colour screen. In addition to HRM and sleep tracking (is it auto?) it's got GPS and a UV monitor. 2 day battery life, splash water resistance.

Jawbone - UP3. They seem to be having manufacturing difficulties.

Mio - Fuse. 7 day battery life (only 11-13 hours with continuous HRM), 3 ATM water resistance, NO SLEEP TRACKING.

Exercise Only / Manual Measurements
LifeTrak - all their models measure ECG heart rate on demand. Some have sleep monitoring. Large black and white LCD screen. Interesting feature is 1-year battery life with a non-rechargeable battery. It only measures heart rate when you ask it to, but the important question is what does it do with the data? Does it store it? How much can it store? Are the times logged as well? Can you export it?

Bluetooth chest strap e.g. Polar H7. The most accurate portable HR measurement method. Needs a smartphone and can't be worn for 24 hours, I think.

06 May, 2015

Thinkware X300 Problems

dash cam cams dashcam dashcams dashboard camera cameras recorder video recorders driving black box boxes blackbox blackboxes
Main post

I'm branching out the problems in this post because I have to keep editing it.

Battery Life
Maybe my car's start-stop system keeps the battery with minimal charge, but it doesn't even have the power to last through the night now. I'm wondering whether the cut-off voltage is accurate, because I set it to 12.1 V but the lowest I've seen in recordings is 12.3 V.

Hmm I was wondering what's the minimum voltage I can set it to and the car will still start. I heard it was 11.8 - 11.9 V, but I found this good site: https://dashcamtalk.com/battery-discharge-prevention/ Apparently 12.0 V is already 50% discharged, and deep cycling is bad for your battery! You only want to discharge to 80%, which is about 12.2 V!

Restarts / Resets
  1. Sometimes, when you start the car, it will startup, then it will reboot itself. I've checked - it doesn't record anything between the 2 startups. So you miss 2 startup times' and more worth of recording.
  2. MOST IRRITATINGLY, sometimes when you start it, it will have reverted to factory settings - GMT -8, sound recording on etc. Fortunately my videos are still there. But it will have changed to partition type A, meaning you have to format your card if you want to change it to your setting. (huh? It can change the partition type by itself to A without formatting and keeping my videos? Why can't it change it when I want then?)

My current theory is that any card gets corrupted when used for too long without formatting, which is what the workshop says. When corrupted, the restart + settings reset problems occur, and they occur together. Here are some instances - to look for a pattern:
  • 32GB: Formatted. 16th day restart and reset.
  • 16GB: Formatted. 6th day restart and reset. Nothing recorded after first startup. Hey when you turn sound recording off, it takes effect immediately! i.e. the sound in the video just stops.
  • 32GB: Formatted and set settings on PC using .exe on card. When inserted and started up, device formatted card again automatically. Settings preserved. Card stored on 21st day, no problems.
  • 16 GB: Formatted and set settings on PC using .exe on card. When inserted and started up, device formatted card again automatically. Settings preserved. This time, I turned motion detection recording on. 19th day restart and reset. Nothing recorded after first start.
  • 32 GB: Set settings on PC, device formatted it by itself on first use, settings preserved. 16th day restart NO reset. Hmm so they don't always occur together. 22nd day restart again. 23rd day restart again. Card stored.
  • 16 GB: Set settings and formatted using device. 6th day restart and reset.
  • 32 GB: Set settings and formatted using device. 8th day restart and reset.
  • 16 GB: Formatted and set settings on PC using .exe on card. 12 aug 2nd day restart and reset! Set settings on camera, no format. Partition type A.
Hopefully formatting the card regularly will avoid this.

microSD card tests
Initially, I thought these problems were caused by my SanDisk Ultra 32 GB microSD card (30 MB/s, SDSDQUA-032G-U46A from Amazon), so I did some tests. But I found out they appear with Thinkware's card too.

Thinkware said their 32 GB cards are S$90. I ain't paying that. They also said their cards are faster than most Class 10 cards. I tested both cards with SpeedOut 0.5 (removable drive tester, needs administrator privileges, said to work at a low level so independent of file system):
SanDisk Ultra 30MB/s: Read 29.274 MB/s | Write 13.243 MB/s
Thinkware: Read 15.827 MB/s | Write 10.792 MB/s

Update: Alright, I heard IOPS/random timings are more important so I'm running more tests. Using CrystalDiskMark 3.0.4 x64. I'm not sure what settings to use so I chose 4 passes, 100 MB, random 4kb, Queue Depth = 1.
SanDisk Ultra 30MB/s: Read 3.099 MB/s (756.7 IOPS) | Write 0.696 MB/s (170 IOPS)
Thinkware: Read 2.667 MB/s (651.1 IOPS) | Write 0.009 MB/s (2.2 IOPS)
So the SanDisk is faster in every test.

06 April, 2015

Tweet: Would You Like To Save Changes?

Tweet - I'm starting a new type of one-liner style posts, like tweets. Enables faster comments without having to wait for a full post.
User Interface - I'm about to comment how technology has come so far, yet UI (and battery technology) remains so so very far behind. Seriously, phones have more processing power than computers that ran Windows XP yet they struggle to accurately select text?

Here's an idea, instead of just asking people if they would like to save changes when quitting Word or Excel, how about actually showing what the changes are? Most of the time it's just because you printed it. It's stupid how I can't give Word 2 versions of the same file and have it show me what the differences are. This is trivially easy, developers. No, instead you have to "track changes" while you edit. Has nobody thought of this before?

Also on UI:
  • Long ago, links on websites used to be in blue. A bit boring, but definitely more practical than now where links are hidden within normal text. I'm talking about usernames and times being links. Did you know times on Facebook take you to a direct link to the post? Did you know "edited" takes you to previous versions of a post? More than once I've considered tabbing through a webpage to find the links.
  • Controls that only appear when you mouse over them are retarded. How do they expect you to discover them?
  • As is putting links at the bottom of auto-scroll webpages. Lots of sites now, they aren't organised into pages. When you reach the bottom, it automatically loads more, making the page longer. Example: Google image search. Makes remembering the location of things impossible but whatever. What's absolutely brainless and shows no planning is putting links at the bottom. So you scroll all the way down, see "help" "API" "settings", and before you can click on anything, the page loads and the links are pushed down. How on earth are you supposed to click on those links? Facebook used to do this but at least they've improved.
Ok this went on for longer than I expected for a tweet.

06 March, 2015

Remax Glass Screen Protector

I finally tried out a tempered glass screen protector, by Remax. I didn't take a picture of it, but the thick cardboard packaging says 9H and 0.1 (probably thickness). I was actually already using it in my iPhone 6 Plus post, but didn't mention it. Minor dislike: in the iPhone 6 Plus post, you can see it doesn't completely surround the Home button, probably because it has to maintain a gap from the edge for varying case designs.
Previous post on glass screen protectors

It's actually quite good. As a screen protector, I'd say it's even the best screen protector I've used, for these reasons:
  • It's HIGHLY scratch resistant. Meaning until I removed it, it looked as good as new.
  • It's also easy to clean / dirt resistant. I don't know if they put a coating or glass is like that. It repelled fingerprints so much better than PET screen protectors. Most of the time when I took it out of my pocket it was already clean.
  • It felt great and smooth. Probably how the naked screen feels.
No wonder these are getting so popular. Regarding application, I didn't want to risk $30 so I let the shop do it. It looked the same as plastic screen protectors, less flexible but it can still be bent slightly. Probably can't do the: use tape to lift a corner to remove dust trick.

The MAJOR problem was, it only lasted 2 months:
One day I discovered this chip on one of the edges (this is the screen protector after taking it out). It was flaking glass powder. It didn't seem dangerous, but you don't want this near your face or scratching your screen, so I replaced it. So - it doesn't shatter once it's damaged. Is it really tempered glass?

When removing it, the chip was a weak point and it cracked. Still didn't shatter.

Now, these are great and I'd love to continue using them, but $30 every 2 months is too expensive. PET screen protectors cost 1/20 to 1/10 the price and I'll live with the dirty screen and replace them more often if I have to.

01 March, 2015

Shangri-La's Line Buffet

The Line Buffet is one of the more famous and expensive buffets in Singapore. It's even more expensive than Mandarin Oriental's MELT. I finally had a chance to check it out and this is an overdue post.
Right off, one thing I didn't like was they charge extra for drinks.

I can't remember exactly what the food was like. I think it was pretty good, but not that much better than MELT's.

Quinny Zapp Xtra And Maxi-Cosi Cabriofix

I had a hard time finding a stroller and car seat online, so this should help someone. WHY DON'T THEY JUST PUT WHAT STROLLER WORKS WITH WHAT SEAT?

Option 1: Mothercare Xpedior

This is a pretty cheap option that I think comes with a car seat, wheel chassis and pram seat (they need to come up with standardised names for these). I think both the car and pram seats fit on the wheel chassis. It's cheap for the whole set, but people say it doesn't last long.

Option 2: Quinny Zapp Xtra And Maxi-Cosi Cabriofix

I always thought Baby Jogger was one of the most expensive strollers, but I found out Quinny is more expensive. Hmm. Anyway, Zapp is their line of 3-wheeled strollers. This is the Zapp Xtra Kenson special edition:
The fabric seat is removable and can be placed facing forwards (3 recline positions) or backwards (2 recline positions). I think in the Zapp Xtra 2 model it can be folded in half. One thing I don't like about the Zapp is it's a bit bulky and difficult to fold. It needs 2 hands and several steps, and even after folding it's still pretty big. When folded it can't stand upright or be wheeled, so you have to carry it.

It comes with the adaptors that let you fit the Maxi-Cosi Cabriofix onto it (do any other car seats fit? Are these brands cooperating?) which is good because as it is, the Zapp Xtra won't seat newborns, so you have to use the Cabriofix until they're 6 months old, or get the "seat reducer". Another advantage is if your baby is sleeping in the car seat, you can transfer the whole seat without having to wake your baby to take him out. So if you're looking for a stroller/car seat solution, you can consider this.

Some comments after using the Zapp Xtra for a while:
The Zapp (Xtra) (2) name is confusing. Some models' seat folds. Some have 4 wheels.
It's an ok stroller when open, but not very good when folded:
  • It's hard to fold
  • It doesn't fold very small
  • It can't be wheeled when folded, so you gotta carry it
  • The handle keeps getting stuck in the front wheel when folding it
  • How do you pick it up when folded? It's got no handle. It's heavy. It keeps trying to open up. It's like holding an umbrella that doesn't lock closed. 

Since the Zapp Xtra folds into 2 parts, it's difficult to bring onto an airplane. Quinny has a bag for their Zapp strollers, but it does not fit the Zapp Xtra. It only fits the wheels part, because the seat can't fold. If anyone is wondering, the JL Childress Standard & Dual Stroller Travel Bag will fit:
Oh if you're looking for one in Singapore, First Few Years is the only shop I've seen selling it.