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Rfm69pi

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Hi there. I have an Arduino Uno, with the EmonTX Shield on top of it, transmitting 433MHz. I also have a Raspberry Pi 3, and the SD card from OpenEnergyMonitor. I’m wondering if there is a sample code for the Raspberry Pi, to process the data coming in from the EmonTX, and somehow display that to a user. TIA.

Everything you need software-wise should be on that SD card. If you’re going to connect the Arduino by wires, you need to look at this: https://wiki.openenergymonitor.org/index.php/EmonTx_V3.4#Direct_connection_emonTx_V3_.3E_Raspberry_Pi_GPIO

If you need to use the RFM radio link, then you will need one of these from the shop: https://shop.openenergymonitor.com/rfm69pi-433mhz-raspberry-pi-base-station-transceiver/
to receive the transmissions. It sits on the Pi’s GPIO connector and feeds straight into the Pi.

emonCMS will then provide you with the means to record and display the data.