I live in South Africa and wanted to implement a power monitoring solution, and came across this site. Locally I cant find anyone that stocks any of the products in your shop (Closest being a rpi3 hat: PiShop - but the cost for this hat seems excessive)
I have just about all the components needed to make a diy monitor (Thinking about using a arduino, and a ESP-01 to send the data to a RPI3)
I am assuming I need to load EmonCMS on my pi3, and then use emonlib on the arduino to read the current and voltages. - can this then be sent via MQTT to the pi3 (Sent via serial to the ESP-01, then sent via WIFI over to the PI3)?