Everything needed to have the transmitter's board made, and to change it.
| Path | Contents |
|---|---|
easyeda/ProDoc_Remote_R2_2026-08-06.epro2 |
The editable EasyEDA Pro project - schematic and layout |
gerber/Gerber_RemotePCB_R2_2026-08-06.zip |
Fabrication files for revision R2, zipped as a fab expects them |
schematic.pdf |
The schematic as a document, readable without EasyEDA |
bom.csv |
Bill of materials, with LCSC part numbers |
The board here is revision R2. The Gerber archive and the EasyEDA project carry the revision and the export date in their filenames, so a later revision can sit beside this one rather than silently replacing it.
Upload gerber/Gerber_RemotePCB_R2_2026-08-06.zip as it is - it is a standard Gerber and drill
set. The BOM lists LCSC part numbers, which suits JLCPCB assembly, but nothing in the design
depends on a particular fab.
If you revise the layout, tag this repository when you order from it. A year later, "which files made the board in my hand" then has an answer the tree alone cannot give.
S3 sits on GPIO 12, and no external pull-up may be fitted to it. GPIO 12 is the MTDI strapping pin: its level is latched at reset and selects the flash regulator voltage, high meaning 1.8 V. A WROOM-32E has 3.3 V flash and will not boot if the pin is high at reset. The switch may only pull the line down - open, the pin sees the chip's internal pull-down; closed, it sees ground.
Fitting a pull-up to S3 is an otherwise reasonable thing to do, and it would stop the board
booting. docs/README.md states the same constraint from the wiring side, for anyone building
without this PCB.