⚠ Your browser can't flash — use Chrome or Edge on desktop.⚠ Not allowed — serve over HTTPS or localhost.
Plug the board in via USB. Click Connect & Flash, pick the serial port, then
Install. You may tick Erase device to also wipe stored config (NVS).
If the port doesn't appear, install the USB-UART driver (CP210x / CH34x) for your board.
Documentation
Datasheet & user manual for each model (pinout, register map, wiring, troubleshooting):
The status LED blinks (init), then goes solid once it has an IP and Modbus is serving.
To configure: hold GPIO14 LOW at boot → SoftAP E02-xxxxxx (pass
edge12345) → http://192.168.4.1/.
Discover & test over the network with the bench-test script (Modbus TCP / mDNS):
⬇ bench_test.py needs pip install pymodbus zeroconf, then
python3 bench_test.py (auto-discovers via mDNS).
