Node-HIU controls and monitoring documentation

Flows ihiu RPi4MC

The Heatweb RPi4MC Controller is the standard equipment board, based on a Raspberry Pi 4, with MC hat, providing:

Arduino Micro
External watchdog
3 x MikroBUS sockets for:
- Thingstream modem
- M-Bus Master
- RS485
- Most other Click Boards
2 x Grundfos VFS sensor sockets
7 x NTC sensor inputs (4 shared with VFS)
2 x DS18B20 temperature sensor bus
PWM Output and PWM Input (pump control)

Converted from the Heatweb wiki article “Flows ihiu RPi4MC”, last edited 2020-07-05. Under review for the new site.

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