(CC) 2023 by Andreas Frisch [email protected]
sdi12-esphome is an ESP32-based interface for connecting professional meteorologic sensors with ESPHome and Home Assistant
- Based on a NodeMCU ESP32 Module
- 4x SDI-12 inputs via push-in terminals
- Step-up conversion for the 12V SDI-12 sensor power
- Transient surge protection for the SDI-12 data bus
- PCB fits into a BOPLA 100x100mm IP65 case
- Home Assistant intergration using ESPHome.io
- is a wrapper around the https://github.com/EnviroDIY/Arduino-SDI-12 library, with the https://github.com/RAKWireless/RAK13010-SDI12/ modifications to split input, output and enable into separate GPIOs
- allows configuring an SDI-12 Bus component that sensors can be attached to
- configure RX, TX & OE pins through configuration YAML
- provide address scan method
- Campbell Scientific CS215 Temperature and Relative Humidity Probe
- https://s.campbellsci.com/documents/ca/manuals/cs215_man.pdf
- Decagon Devices DS-2 Sonic Anemometer
- https://library.metergroup.com/Manuals/14586_DS2_Web.pdf
- Sensors for
- wind speed
- wind direction
- wind temperature
- SDI-12 Bus component (feature complete & tests)
- Themometer/Hygrometer (feature complete & tests)
- Anemometer (feature complete & tests)
- Rain Gauge (start)
- Generic Sensor (start)
- Documentation / Photos
| Date | Version | Milestone |
|---|---|---|
| 2023-10-22 | Started Project on the breadboard | |
| 2023-11-06 | First successful sensor readout in EPSHome | |
| 2023-11-13 | v0.1 | Order prototype design at JLCPCB |