Temperature, pressure and wind Data > NMEA2000

Description

This repository shows how to measure the

• temperature
• barometric pressure
• Windspeed
• Winddirection

and send it as NNMEA2000 meassage.

• PGN 130306 // Wind
• PGN 130314 // Pressure
• PGN 130316 // Temperature

In addition, all data and part of the configuration are displayed as a website.

Based on the work of

Idea and basics for this Pojekt is "NMEA2000-TempPressure" from @AK-Homberger.

This repository shows how to measure and with a BMP280 or 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 project requires the NMEA2000 and the NMEA2000_esp32 libraries from Timo Lappalainen: https://github.com/ttlappalainen.

This project is part of OpenBoatProject

TPW Sensor Modul

For the BMP 280 and 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.

Wiring diagram

PCB

Aisler PCB Layout link

Hardware

Partlist:

• C1 C10µ ~ Capacitor_Tantalum_SMD
• C2 C22µ ~ Capacitor_Tantalum_SMD
• D1 P4SMAJ26CA
• D2 B360 Link
• D4 PESD1CAN Link
• D5 LED_RBKG Link
• FL1 EPCO B82789C0513 Link
• J1 Conn_01x04_Socket
• J2,J3 Conn_01x04_Pin
• N1 Housing Wago 789-120 Link
• R1 300R
• R2 10k
• U1 TSR_1-2450 Link
• U2 ESP32-Huzzah Link
• U3 SN65HVD230 Link
• U4 BMP388 Link

Website

Plotter

Versions

• 2.5 Update and add website details
• 2.4 Update windvalues and add windsensortemp for N2k, website cosmetic
• 2.3 Update windvalues for N2k
• 2.2 Update read values from windsensor, Update PCB
• 2.1 Update website Gauge's
• 2.0 Complete Website update, Windsensor Stream read update (code and html files)
• 1.3 Update windsensor Wlan connect code
• 1.2 Update website
• 1.1 Update PCB
• 1.0 working Version