allram / amstomqttbridge

Minimalistic system to read AMS/HAN data from electrical meter

AMS <-> MQTT Bridge

Orignally designed and coded by @roarfred, see the original repo at roarfred/AmsToMqttBridge

This repository contains the code and schematics necessary to build a device to receive and convert data from AMS electrical meters installed in Norway. The code can be used on both ESP8266 and ESP32, both as custom build devices or built from readily available development modules. It reads data from the HAN port of the meter and sends this to a configured MQTT bus.

There is also a web interface available on runtime, showing meter data in real time.

Hardware options

Look in hardware section for more details about supported hardware

Release binaries

In the Release section of this repository, you will find precompiled binaries for some common boards.

• hw1esp12e :: First version custom hardware with ESP 12E of 12F chip
• esp12e :: General ESP8266 board with 12E or 12F chip
• d1mini :: Wemos D1 mini
• esp32 :: General ESP32 board
• lolind32 :: Wemos D32
• featheresp32 :: Adafruit ESP32 feather

Flashing binaries with esptool.py

Linux: esptool.py --port /dev/ttyUSB0 write_flash 0x0 binary-file.bin

Windows: esptool.py --port COM1 write_flash 0x0 binary-file.bin

Building this project with PlatformIO

To build this project, you need PlatformIO installed.

It is recommended to use Visual Studio Code with the PlatformIO plugin for development.

Visual Studio Code

PlatformIO vscode plugin

Copy the platformio-user.ini-example to platformio-user.ini and customize to your preference. The code will adapt to the platform and board set in your profile. If you are using the original board design by @roarfred use build flag -D HW_ROARFRED=1