Thursday, November 19, 2015

ATTiny13 Programming with Arduino IDE

attiny13a-dip.jpg

Sometime, you need a small circuit to flash some LEDs or do some simple task, say, power on delay function for your DIY amplifier, power on reminder for your soldering station (beep every 3 mins) - which I forgot to turn off all the time… probably, an Attiny13 is just what you need.

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Saturday, October 17, 2015

Quiz game show buzzer

buzzer-game-show-2-buttons.jpg

It is sometime called game show buzzer lockout system, but I thought many people confuse with the name so I changed it.

If you’ve watched some game shows like Family Feud, you probably know what a game show buzzer is. And yes, it is a set of buzzers that once a button is pressed, the other button is deactivated to indicate the player who takes answer fastest. It usually is 2 or 3 players at a time on TV. That is easy. But what if you need a buzzer set for 10+ players or teams at the same time. Well, not easy anymore.

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Tuesday, September 22, 2015

Middle mouse button fix for Asus touchpad in windows 10

asus-x302la-smartgesture.png

Just bought this laptop Asus x302l about 3 weeks ago. After a week, I found out that it ([S]is[/S]) was impossible to do middle mouse button. There is no such an option for middle mouse button in ASUS Smart Gesture, or I should call ASUS not-so-Smart Gesture. In this entry, I will call it “Asus gesture”.

Tried everything I could find on the internet, also hit the support team of ASUS as well, none came with success. I was so disappointed, and still do. So, do I have carry an extra mouse on the go like forever?

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Thursday, August 27, 2015

Asus X302L - fix loose touchpad makes clicking noise

asus-x302la.jpg

With 13.3” LCD, this lightweight laptop has the brain of i5-5200u, 4GBs RAM, 500GB Hard drive blah blah blah…

Just bought one yesterday from local store for AU$ 799 and it surprised me when it comes with 128GB SSD instead. Nice!

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Saturday, July 25, 2015

PL2303 - USB to UART Converter for Arduino Pro Mini

PL2303-CONVERTER.JPG

This is what you get from ebay for a very cheap price

Most cheap PL2303HX USB to UART adaptors from ebay usually don’t have DTR pin to upload sketch easier to Arduino Mini Pro.
This post will show you how to mod this little adaptor to play nice with arduino mini pro. It should take about 10 minutes and require good solder skill.
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