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35 lines
1.3 KiB
35 lines
1.3 KiB
# Datalogger reading kWh pulses from a utility grid meter and publising it via MQTT
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(C) 2022 M. Konstapel https://meezenest.nl/mees
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Inspired by https://www.instructables.com/A-Simple-MQTT-PubSub-Node-With-Arduino-UNO-and-ENC/
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## Features
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- Runs on low spec microcontroller (Uno, Nano, Mini, and other ATMega328-based boards)
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- Wired ethernet via ENC28J60 Ethernet module
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- Gets ip address via DHCP
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- Stores data in EEPROM to prevent data loss
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- Easy to configure by telnet port 1000
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## Requirements
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- Arduino IDE (version 2.0.2)
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- UIPEthernet library by Norbert Truchsess, CassyArduino and Juraj Andrassy (version 2.0.12)
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- PubSubClient library by Nick O'Leary (version 2.8)
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## Configure
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The Device gets its IP address via DHCP. Make sure you have a working DHCP server on the network.
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The ip address and port of the MQTT broker can be set by connecting to the device via telnet on port 1000.
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To set the ip address of the MQTT broker use the command ": <ip address>". For example, to set the ip address to 192.168.1.10 type ": 192.168.1.10" and hit enter.
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To set the port number of the MQTT broker use the command "P <port number>". For example, to set the port number to 1883 type "P 1883" and hit enter.
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To show the current settings type "I".
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To save the settings to EEPROM type "S" and hit enter.
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IMPORTANT: after making changes, power cycle the device.
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