This project is a custom controller built to replace the original freezer controller that stopped working. It operates by reading the 10K NTC in the fridge and controlling the compressor relay.
Arduino
3 posts
In a recent project, I needed to log data onto an SD card. However, I hit the flash storage limit after adding the SD card library. So, I opted to communicate with the card manually using SPI commands and write raw bytes, skipping the filesystem altogether.
GravityZero is an Open Source STM32G473-based development board with two USB ports (Native & CH340 Serial), and access to nearly all the IO ports through the headers. alongside an onboard "NeoPixel" RGB LED.