March 29 2014 is Arduino’s 10 years birthday, also the World’s Arduino Day. In conjunction with the global celebration, SG Makers in partnership with IDA is organizing a whole series of events for Singapore Arduino lovers….
Category: Project
HOWTO: Write a display driver for SEGGER emWin
One lucky day you wake up to find your dream of creating sophisticated graphics user interface for MCU projects comes true, because STMicroelectronics has released a free version of SEGGER emWin for…
JTAG adapter for Arduino Micro
For the holiday season I get myself an AVR JTAGICE3. Holding the new shiny emulator and a bunch of Arduino boards, what shall I do? Of course to hop onto the all-hail…
FT230X charger detection investigation
I bought some FT230X (FT230XS) USB-USART bridge chip recently for a new design. FT230X is not only cheaper than the traditional FT232RL, but also offers a new fancy “USB charger detection” function….
Hacking a cheap LED voltmeter
I’m planning to build a EEVblog-ish constant dummy load for battery and power supply testing. Dave in his build used a LCD voltmeter for the display. In the senseless pursuit of difference, I…
Opensource STM32 development
In an upcoming project I need a micro controller that operates: 1x 16-bit DAC (SPI); 1x 24-bit ADC (SPI); 1x 8-bit parallel LCD; 1x rotary encoder; 1x PWM fan; 1x fan tachometer; 1x…
Poorman’s OLED test jig
During last (Chinese) year end shopping frenzy I grabbed some OLED display panels, hoping to boost the presentation of my projects. The panel model is UG-2864ASGGG14, made by “WiseChip Semiconductor Inc.” in Taiwan. Unlike typical…
MF70 CNC PCB milling
During a recent shopping mania I grabbed some old AMOLED screens at very cheap price. The seller is an electronics hobbyist. He is kind enough to provide an adaptor board that generates…
Saleae Logic PWM generator
In a recent project I need a 3.3V PWM signal generator. Initially I think the fastest way to do it is using an Arduino and write a simple program with analogWrite() function….
MF70 CNC
A while ago in “Manual PCB milling” I revealed my plan about Proxxon micro-mill MF70 CNC conversion. After months of assembling, tear down and re-assembling, the first working system is up. I…