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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....
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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 Atmel Studio and ditch the...
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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...
View ArticleFlappyDuino – Arduino Day 2014 celebration
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...
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HOWTO: Use STM32 SPI half duplex mode
I’ve got my hands onto some STM32F030F4P6 ARM-Cortex M0 processors. Though touted as “32 cents 32-bit micro”, it is not that inexpensive from DigiKey in one-off quantity ($1.45). However it is still...
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Minimalism AVR development board
Lacking of proper development board always poses huge resistance for me to jump onto a new MCU. Even with the most prototyping friendly DIP packages, wiring a programming header onto the breadboard is...
View ArticleSeason’s Greeting from VFDuino
To all my readers: Wish you a very Merry Christmas. VFDuino, Arduino compatible Vacuum Fluorescent Display module. Open source release imminent. The post Season’s Greeting from VFDuino appeared first...
View ArticleHappy New Year from ESP8266
Happy New Year! The application is made with ESP8266 RTOS SDK. SSD1306 based OLED panel is connected on GPIO4/5 using software emulated I2C. I rushed this out last night and the code is in a mess...
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Macbook Bluetooth upgrade for LightBlue Bean
During last year’s blackfriday sale I was introduced to the epic Lightblue Bean “Cheaper than a turkey” promotion. I grabbed two beans during a group buy spree. A week later’s The AmpHour interview...
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ESP8266 breakout board and I’m on Tindie
The rise of the ESP8266 WiFi chip was almost overnight with Espressif’s open approach and pushing from Hackaday. While no ground-breaking product has yet emerged, the development on the chip are...
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STM32CubeMX and ARM GCC
Writing peripheral initialization code is probably the most tedious work that always stops me from starting a new ARM project. I believe engineers at STMicroelectronics share the same pain. Therefore...
View ArticleTrueSTUDIO STM32 project to GCC Makefile converter
Since I wrote the STM32CubeMX to Makefile converter, a lot of people have been helping to improve the project. Thanks! Meanwhile I also heard a lot of complaints about the quality of STM32Cube codes,...
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ESP8266 MQTT client on RTOS
In the recent Maker Faire I demonstrated an ESP8266 MQTT VFD clock. Some readers had wrote to ask for the soure code. Because the project was builtup within only 2 days, the actual source code is more...
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First sight into ESP32
So I am one of the 200 lucky bastards who receive the Espressif ESP32 beta units. It arrives in a nicely printed packaging which resembles very much like a jewel box. And the item inside is really a...
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HOWTO: Use STM32 SPI half duplex mode
I’ve got my hands onto some STM32F030F4P6 ARM-Cortex M0 processors. Though touted as “32 cents 32-bit micro”, it is not that inexpensive from DigiKey in one-off quantity ($1.45). However it is still...
View ArticleClik here to view.
Minimalism AVR development board
Lacking of proper development board always poses huge resistance for me to jump onto a new MCU. Even with the most prototyping friendly DIP packages, wiring a programming header onto the breadboard is...
View ArticleSeason’s Greeting from VFDuino
To all my readers: Wish you a very Merry Christmas. VFDuino, Arduino compatible Vacuum Fluorescent Display module. Open source release imminent. The post Season’s Greeting from VFDuino appeared first...
View ArticleHappy New Year from ESP8266
Happy New Year! The application is made with ESP8266 RTOS SDK. SSD1306 based OLED panel is connected on GPIO4/5 using software emulated I2C. I rushed this out last night and the code is in a mess...
View ArticleClik here to view.
Macbook Bluetooth upgrade for LightBlue Bean
During last year’s blackfriday sale I was introduced to the epic Lightblue Bean “Cheaper than a turkey” promotion. I grabbed two beans during a group buy spree. A week later’s The AmpHour interview...
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