Awesome
Purpose
NodeMCU (left) and DoIt ESP32 DevKit (right), side by side: <br>
Pin mapping
System
| 1 | 2 | 3 | 4 | |
|---|---|---|---|---|
| NodeMCU | GND (x4) | 3V3 (x3) | EN | VIN |
| DoIt ESP32 DevKit | GND (x2) | 3V3 | EN | VIN |
GPIO. Bank 1. In use by SoftRF firmware.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NodeMCU | D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | RX | TX | A0 | SD3 |
| DoIt ESP32 DevKit | D26 | D25 | D14 | D23 | D2 | D5 | D19 | D27 | D18 | RX0 | TX0 | VP | D13 |
GPIO. Bank 2. Spare pins.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
|---|---|---|---|---|---|---|---|---|
| NodeMCU | RSV1 | RSV2 | SD1 | SD2 | CLK | CMD | SD0 | RST |
| DoIt ESP32 DevKit | RX2 | TX2 | D21 | D22 | D15 | D4 | D12 | VN |
UAV connector (optional). Residual ESP32 pins and GNSS/MAVLINK port.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
|---|---|---|---|---|---|---|---|
| 2 | A0 | D1 | RX | TX | D3 | GND | 5V |
| 1 | 3V3 | GND | D32 | D33 | D34 | D35 | SD3 |
RF connector (optional). NRF905 or "SoftRF LoRa" port.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
|---|---|---|---|---|---|---|---|
| 2 | D0 | D2 | D35 | D34 | D7 | D8 | GND |
| 1 | 3V3 | D4 | NC | NC | D6 | D5 | GND |
Adapter
<p><img src="https://github.com/lyusupov/SoftRF/raw/master/documents/images/ESP32-NODEMCU-ADAPTER-5.jpg" width="40%" height="40%"> <img src="https://github.com/lyusupov/SoftRF/raw/master/documents/images/ESP32-NODEMCU-ADAPTER-6.jpg" width="40%" height="40%"></p>It fits good enough for SoftRF Shield: <br>
<p><img src="https://github.com/lyusupov/SoftRF/raw/master/documents/images/ESP32-NODEMCU-ADAPTER-8.jpg" width="40%" height="40%"> <img src="https://github.com/lyusupov/SoftRF/raw/master/documents/images/ESP32-NODEMCU-ADAPTER-7.jpg" width="40%" height="40%"></p>and for SoftRF Enclosure V4 as well: <br>
PCB manufacturing
You can order the PCB direct from manufacturer: <sup>1</sup>
<a href="https://PCBs.io/share/4xgbg"><img src="https://s3.amazonaws.com/pcbs.io/share.png" alt="Order from PCBs.io"></img></a><br>
Estimated price for minimum 4 pcs of the PCB with basic international shipping included in is around 7 USD.<br>
Expect to wait:
- 1 week for panelization
- 2 weeks for fabrication
- 1-2 weeks for delivery to your location
Alternatively you may pick these Gerber files and order the PCB from a local manufacturer of your preference.
<sup>1</sup> - SSL Cert error warning may come up - it is known to be safely ignored<br> <br>
Bill of materials
| Number | Part | Qty | Picture | Source |
|---|---|---|---|---|
| 1 | PCB | 1 |  | <a href="https://PCBs.io/share/4xgbg"><img src="https://s3.amazonaws.com/pcbs.io/share.png" alt="Order from PCBs.io"></img></a> |
| 2 | 1x40 female header 2.54mm | 1 |  | AliExpress |
| 3 | 1x40 male header 2.54mm | 1 |  | AliExpress |