Hi,
I have Mars Hydro grow light, opened dimmer box and it has ESP32 chip in it
Any tips for flashing it?
You have essential pins comfortably exposed to connect it to usb-uart converter.
Find safe way to power it though, does it have isolated power supply?
Any tips especially regarding how to put in flash mode?
I saw 3d printed flash rig with magnet for esp32 on etsy.
You need to pull gpio0 (pin25) LOW.
I know, just any tips or opinions how to do that easily?
Test if it’s exposed anywhere on the pcb (outside the chip itself).