I am building many sensors using nodemcu and lua trying to connect everything together.. Have a look at my other thingspeak pages: https://thingspeak.com/channels/145827
Control of the presence of voltage in the network. Control of the presence of voltage of three generator lines, in the absence of mains voltage. Linear current distribution symmetry control.
SDM120C energy monitor https://thingspeak.com/apps/plugins/14346 https://thingspeak.com/apps/plugins/129446 https://thingspeak.com/apps/plugins/129648
Energy monitor with PZEM004T and ESP8266. It takes a set of measurements each minute and posts it here.
Using an arduino with ethernet shield, and a current clamp in the main phase. monitoring the power consumption with a Triple tarif
ADS1115+ESP-01 (1M) OTA updated based on https://goo.gl/AH8Y3w sketch adapted to my 30A CT and 6V transformer. ESP is powered from a separate 3.3V source.
Using an ESP8266 ESP-01 module and an Arduino Pro Mini 3.3V I wirelessly update all outputs from my thermostat to here for data analysis and because it's cool. This requires a voltage divided rectifier since thermostats run at least 24 VAC RMS.
This channel holds data transferred by the WATSON, which monitors power usage by any residential appliance it is connected to.