Whirlybird/RS41

Expanding ESP32-S3 capabilities with RS41 Radiosonde integration utilizing UART communications. One proof of concept TEST prototype has been constructed using point to soldered connections. The current BETA is being constructed using a modified 10 conductor 1mm spaced flat ribbon cable and 2x5 2mm IDC connector. This makes for a "plug-able" adapter between the sonde and main PCB. The position and connections utilized are an interim test of developing a custom M.2 Key E form factor adapter.

TEST utilizes the regulated 3v3 power directly to the sondes MCU and a GPIO expander port that enables a sink to ground for reset. BETA is experimenting with supplying 4v7 to the battery connection so the sonde can power itself from integrated voltage regulators.

Connector Pin Out

1. GROUND
2. SWDIO
3. SWCLK
4. RESET
5. BATTERY
6. BUCK/BOOST
7. 3 VOLT
8. TX
9. RX
10. GROUND