Monday, September 26, 2016

Serial Communication for debugging - dummies version

Com_port.jpg

If you are older than 28 years old, you might already know what a COM port looks like. Yes, COM port stands for Communication port. It was used widely to connect external device to the computer in the old days around 2005, such as: modem, mouse, even printer or transfer data between 2 PCs. Yes, COM port was understood as serial port.

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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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