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CelliesProjects authored Dec 16, 2020
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## About

`smartMeterLogger-esp32` connects to a smart meter (slimme meter) and logs the electricity use per minute to an sdcard.
`smartMeterLogger-esp32` connects to a smart meter (slimme meter) and logs the electricity use per minute to an sdcard. Saved data can be viewed in a html5 compatible browser. (phone/laptop/desktop)

![overzicht vandaag android](img/screenshot_android_vandaag.png)


![huidig](img/screenshot_pc.png)


![overzicht vandaag pc](img/screenshot_vandaag_pc.png)

## How to use
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See [this LilyGo issue](https://github.com/LilyGO/ESP32-MINI-32-V1.3/issues/4#issuecomment-610394847) about the external antenna.

### SD card reader

![card reader](img/sdboard.png)

Using the default pins.

### Level shifter / inverter

To invert and level shift the signal you can use a bc547 transistor with some resistors. For example like this:
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