This is a compact board for remote control of farm and shed equipment. It’s built around Heltec’s HT-CT62 module, which pairs an ESP32-C3 (Wi-Fi and Bluetooth) with an SX1262 LoRa radio. It adds what you need to put that module to work in the field:

Relay output: an onboard relay with a status LED, wired to a 3-way screw terminal, for switching an external circuit such as a pump contactor coil, a solenoid or a siren.

Sensor port: a 4-pin 1 mm JST-SH I²C connector with pull-ups already fitted, so temperature, tank-level and similar sensors just plug in.

Spare I/O: a 2-pin connector for a float switch, reed switch or pulse meter.

USB-C: powers the board and connects through a CH340C USB-serial bridge for flashing and a serial console.

Reset and Boot buttons, plus an onboard 3.3 V regulator.

Load Meshtastic or your own ESP32-C3 firmware. It was designed on an off-grid farm for jobs like remote pump control.

Two gaps to settle before this goes on a listing, both checked against the sheet as drawn:

U1 pins 1 (2.4G_ANT) and 22 (LoRa.ANT) are marked no-connect. If the antennas attach somewhere else, such as connectors on the module, the pitch stands. If not, the board has no antenna path.

The relay and U11 carry no contact rating on the sheet. A buyer will want to know the voltage and current it can switch, so add that to the listing.

Contact me if you need more details on how to customise the Meshtastic firmware.