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 or less of spaghette type. However the underlying MQTT client may be useful to someone who likes the RTOS SDK.
Well I’ve been bit lapse. This post is supposed to written in July.
Another year, another Maker Faire. Yes! for this year it is nolonger “Mini Maker Faire”, we’ve just upgraded to the full fledged “Maker Faire” event. As Singapore Maker Faire has grown 10 times compare to 3 year ago, I am not able to cover every single booth or exhibit in the event. I only write about those I’m interested in. Continue reading
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, for example, the thread here. Although I believe STM32Cube’s quality will eventually improve, at the moment there are still applications for the good old “Standard Peripheral Library” and other ST middlewares. Therefore I wrote another program, that converts most of ST’s example project into Makefile project. Continue reading
Writing peripheral initialization code is probably the most tedious work in embedded development. It always successfully stops me from starting a new project. I believe engineers at STMicroelectronics share the same pain. Therefore they created STM32Cube firmware and STM32CubeMX graphical configuration tool, which turns numerous key strokes and page flips into just a few mouse clicks. STM32CubeMX is free software, but the initialization code it generates require compiler tools carrying hefty price tags, IARARM, Keil ARM-MDK, and Atollic TrueSTUDIO, to name the few. Fair enough these compilers do offer free editions with limited functionality. But I still prefer unrestricted, free tool that is easily scale-able for my current and future projects. Just like the GNU Make and ARM GCC toolchain I described in Opensource STM32 development.
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 phenomenon. However due to an unknown reason the ESP8266 modules manufacture seems to prefer non-standard 2.0mm pitch connector, which gives a lot of headache to breadboarding lovers like me. This forced me to make a breadboard friendly ESP8266 breakout board.