Welcome to my Electronics Blog!
Small TFT displays are one of the quickest ways to add functional ‘bling’ to a microcontroller project. The ST7789 is a modern and popular TFT LCD controllers; it’s cheap, bright, and available in 240×240, 240×320 and 135×240 sizes. I wanted to develop a MicroPython library that did more than fill rectangles, so I built on…
I recently decided to experiment with Zephyr to build applications for my STM32 based EmbLynx board. I found the process of developing custom board files and setting up USB CDC functionality very cumbersome; despite having some familiarity with device trees. I worked on a simple USB CDC Zephyr project for 3-4 days straight. I did…
In this blog entry, the design of an all through hole class D amplifier board based around the TPA3122D2 (or the pin compatible TPA3125D2) IC will be covered. The TPA3122D2 (15W stereo) & the pin compatible TPA3125D2 (10W Stereo) are the only through hole class D amplifier ICs that I’m aware of. Both come in…
In this blog entry, standard printf redirection to the serial port on STM32 microcontrollers (STM32G474RE specifically) will be covered via the standard Newlib-nano. Whether you create an new STM32 project with Visual Studio Code (VSC) + STM32Cube plugin or the STM32CubeIDE, both project setups will automatically add newlib-nano and syscalls.c and sysmem.c to the project….