Update 2024/05/11: two i2c daugther boards with bluetooth 5.0 and pwm mosfets to double LiIon cycles: https://onlinelibrary.wiley.com/doi/10.1002/aenm.202400190
$2 pcb order at JLPCB ("Add gerber file" upload button): https://github.com/RoboDurden/Esp32_20A_80V_dcdc/blob/main/KiCad%20PCB%20v2/production/Esp20A80V_2024-05-12_13-24-33/Esp20A80V.zip
All GPIO pins to alternative headers. All headers on 2.54mm grid for prototyping board.
https://youtu.be/tdmJfj5aSUM = major update: ESP32 20A 80V dcdc/mppt with TouchTft
PCB and S2_Mini are cheap, so simply solder S2_Mini to backside. The tin solder should quickly be sucked into the holes of the S2_Mini and connect to the holes of the pcb :-)
20A 80V dcdc/mppt with Esp32 and touch display
$4 pcb order at JLPCB ("Add gerber file" upload button): https://github.com/RoboDurden/Esp32_20A_80V_dcdc/blob/main/KiCad%20PCB%20v1/production/Esp20A80V_2024-04-22_16-06-04/Esp20A80V.zip