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Mottramlabs / 4-Channel-Mains-Current-Sensor

A 4-Channel mains sensor board with an option for either a Wemos D1 Mini or an ESP-12 WiFi module
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4-Channel-Mains-Current-Sensor

A 4-Channel mains sensor with an option for either a Wemos D1 Mini or an ESP-12 WiFi module

Firmware Version 1

Using the an external A/D ADS1115 to measure the output of the current transformer, this version measure the peak values of the mains sine wave then calculating the RMS voltage value.

Firmware Version 2

This is based of the EmonLib https://github.com/openenergymonitor/EmonLib library. This works different from version 1 and as some digital filtering which improves resolution at lower power levels.

PCB Layout

Display-Type-B