Idea and basics for this Pojekt is "NMEA2000-TempPressure" from @AK-Homberger and "NMEA0183-to-NMEA2000" with ESP32 @AndrasSzep.
This repository shows how to measure temperature and barometric pressure with a BMP388 sensor and send it to NMEA2000 network. Additional work a Gateway with inputs NMEA0183 TCP-Stream from my Windsensor "NoWa" or "Yachta" @norbert-walter and send to NMEA2000.
The data is sent to NMEA2000 network with PGN130310 and PGN130306 (Outside Environmental Parameters and Wind).
The project requires the NMEA2000 and the NMEA2000_esp32 libraries from Timo Lappalainen: https://github.com/ttlappalainen. Both libraries have to be downloaded and installed.
For the BMP388 the Adafruit BMP3xx library has to be installed via the library manager. For HTML-Files use LittleFS Filesystem, you find her in /data directory.
The ESP32 in this project is an Adafruit Huzzah! ESP32. This is a small module without USB connector.
For the ESP32 CAN bus, i used the SN65HVD230 chip as transceiver. The correct GPIO ports are defined in the main sketch. For this project, I use the pins GPIO4 for CAN RX and GPIO5 for CAN TX.
The 12 Volt is reduced to 5 Volt with a DC Step-Down_Converter. 12V DC comes from the N2k Bus Connector with the M12 Connector.
- Adafruit Huzzah! ESP32 (for programming need USB-Adapter)
- Traco-Power TSR 1-2450 for 12V / 5V
- RGB LED Kingbright L-154A4SURKQBDZGW
- TI SMD-Chip SN65HVD230
- Case Wago 789-905
Aisler PCB Layout https://aisler.net/p/NZFHAMAJ
- Adafruit Huzzah! ESP32 (for programming need USB-Adapter)Link
- SN65HVD230 Link
- Traco-Power TSR 1-2450 for 12V / 5V Link
- Case Wago 789
