> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# M-Bus HAT for Raspberry Pi

**Type:** Product page · **SKU:** CE09155 · **Brand:** [The Pi Hut](https://core-electronics.com.au/brands/the-pi-hut)
**Page:** https://core-electronics.com.au/m-bus-hat-for-raspberry-pi.html ([markdown](https://core-electronics.com.au/m-bus-hat-for-raspberry-pi.html.md))

With this M-Bus HAT, you can extend your Raspberry Pi with functions for smart metering! The HAT provides an M-Bus master to which other M-Bus devices...

> ⚠ Deal is for shelf stock only — any additional stock will be at the normal price.

## Pricing

- **Price:** $68.26 (inc GST) — $62.05 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 today, and up to 500 more in 5–8 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE09155:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE09155:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

With this M-Bus HAT, you can extend your [Raspberry Pi](https://core-electronics.com.au/raspberry-pi.html) with functions for smart metering! The HAT provides an [M-Bus](https://m-bus.com/) master to which other M-Bus devices such as electricity, water or gas meters (with the appropriate interface) can be connected directly.

[A datasheet/user guide is available to help you get started](https://core-electronics.com.au/attachments/localcontent/Datasheet_MBUS_HAT_Rev_A_90867d777ff.pdf). With [libmbus](https://github.com/rscada/libmbus), powerful C++ software is available for the Raspberry Pi, which can be used with the M-Bus HAT. If you prefer Python take a look at the [pyMeterBus](https://gitlab.com/ganehag/pyMeterBus) project.

[![](https://core-electronics.com.au/attachments/localcontent/m-bus-hat-for-raspberry-pi-usage-diagram_46735b97f65.jpg)](https://core-electronics.com.au/attachments/localcontent/m-bus-hat-for-raspberry-pi-usage-diagram_46735b97f65.jpg)

**Features**

- M-Bus (Meter-Bus) Master
- Compatible with European standard EN 13757-2
- For the remote reading of consumption meters
- For up to 6 unit-loads (9mA)
- External DC power supply (9...30V) needed (36V for the MBUS will be generated internally from this voltage)
- Galvanically isolated interface
- Removable screw terminals for bus and power supply connection
- Indicator LEDs for RX and TX signals
- Selectable UART via jumper (with Raspberry Pi 4 only)
- For Raspberry Pi 2 / 3 / 4 Model B, Raspberry Pi Zero and compatible SBC
 
**Package Contents**

- 1x M-Bus HAT (standard version)
- 1x Terminal block connector
 
**Raspberry Pi not included**

**Resources**

- With [libmbus](https://github.com/rscada/libmbus), powerful C++ software is available for the Raspberry Pi, which can be used with the M-Bus HAT.
- If you prefer Python take a look at the [pyMeterBus](https://gitlab.com/ganehag/pyMeterBus) project.
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/Datasheet_MBUS_HAT_Rev_A_90867d777ff.pdf)
- [M-Bus homepage](https://m-bus.com/)
 
**Pin Usage**

 | **Function** | **UART0** | **UART3** | **UART4** | **UART5** |
|---|---|---|---|---|
| GND | Pin 6, 9, 14, 25, 39 |
| 3.3V | Pin 1 |
| 5V | Pin 2, 4 |
| TX (Only one is used) | GPIO14 (8) | GPIO4 (7) | GPIO8 (24) | GPIO12 (32) |
| RX (Only one is used) | GPIO15 (10) | GPIO5 (29) | GPIO9 (21) | GPIO13 (33) |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE09155-1.jpg)