2c is the implementation that [DaveBben] chose for this setup, as it can be streamlined to run a bit better on something like the ESP32. The specific model is the ESP32-S3FH4R2, which was chosen ...

[Mooneer] loved the open firmware and open hardware model of the SM1000 and wanted to revisit the idea. Make it easier to use, add newer features, and, most importantly, reduce costs. The ESP32 ...

InnoSwitch3-EP family of off-line CV/CC QR flyback switcher ICs now feature 900 V PowiGaN switches.