Julien Deantoni’s kiln controller and smartphone app:
https://jdeantoni.github.io/KilnRegulator3.0/
Designed to be compatible with Ceradel and Solargil kilns.
Zach Moore’s SmartKiln cloud based kiln controller.
Jason Bruce’s fork of Apollo-NG’s picoReflow:
https://github.com/jbruce12000/kiln-controller
PiLN - Web-based Raspberry Pi Kiln Control Application. Various versions:
Arduino-based kiln controller and data-logger.