Skip to content

M-BUS powered ESP32-C3 AMS reader

Notifications You must be signed in to change notification settings

dbeinder/han-mosquito

Folders and files

NameName
Last commit message
Last commit date

Latest commit

4bf005b · Jan 22, 2025

History

8 Commits
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Mar 19, 2023
Mar 24, 2023
Mar 17, 2023
Mar 17, 2023
Jan 22, 2025
Mar 17, 2023
Mar 24, 2023
Mar 17, 2023
Mar 17, 2023
Mar 19, 2023
Mar 17, 2023

Repository files navigation

µHAN mosquito

Aus Österreich?: Ich habe noch einige Module übrig, bei Interesse bitte Email an david(at)beinder.at

Inkl. Versand 37€ für 1 Stk, dann +15€ für jedes weitere. Privatverkauf, Bastellösung, keine Gewährleistung, etc ;)

A tiny M-BUS-powered ESP32-C3 board to capture data from digital electricity meters. Compatible with AMS reader firmware.

  • Power & flashing via USB-C
  • Power & meter signal via M-BUS (RJ11)
    • Input current limited to 40mA, this is probably only compatible with Kaifa meters
    • Firmware needs no aggressive WiFi power management, there is enough for AP mode and OTA firmware upgrade
  • ESP32-C3-MINI-1 module: 160MHz RISC-V core, 4MB Flash, 400kB RAM, 2.4GHz WiFi
  • 1mm² RGB LED
  • Two side-mounted buttons
    • Top: ESP32 reset
    • Bottom: AP mode, hold during reset to flash
  • Mounted by magnet on the IR port
  • Tested on an Austrian (Vbg) Kaifa MA309M
  • Designed in KiCad 7

License: free to use and modify for non-commercial use

panel proto-mounted

Prototype pictures

proto-front proto-back
image

About

M-BUS powered ESP32-C3 AMS reader

Resources

Stars

Watchers

Forks

Releases

No releases published