meshtastic_jtag

An easy to assemble JTAG debugging PCB for meshtastic

Features

• Works with any ESP32 Devkit C compatible board
• Support for OLED (front) and GPS (back)
• Compatible with ebyte e22-900m22s LORA module
• Built in 915MHz monopole antenna

Project status

• Gerbers are not tested and schematic has not been reviewed
• Antenna matching network needs to be optimized

Assembly instructions

• Gerber files are in the /gerber/ directory, they are plotted in a format that can be directly uploaded to JLPCB
• When ordering from JLCPCB don't forget to tick "specify a location" under "remove order number" so that the JLC PCB number is at the PCB back side
• Assembly should be pretty self-explanatory, minimum hardware requirement is the ESP32 Devkit and the e22-900m22s LORA module with the two decoupling capacitors
• OLED display goes on the PCB front side
• NEO6M GPS module goes on the PCB back side
• The matching network needs fine tuning, for now you should not place C3 and C4 and add a short in place of L1 (small blob of solder)

Contributing

Please contribute using Github Flow. Create a branch, add commits, and open a pull request. Remember to git clone --recursive git@github.com:Hydra-Designs/meshtastic_jtag.git or git submodule update --init since the official espressif KiCAD libs have been included in a submodule.

Support

Please open an issue for support.