Modification of Sonoff Pow R2 to connect CT sensor and measure AC power. It might be useful when measuring higher power than 15A Sonoff can handle or when you can not cut AC line wires. Original Sonoff shunt circuit inside can be left untouched, need to solder only two wires inside. Circuit diagram, left is […]
Month: December 2023
Pulse To Tone Converter based on Arduino (sorry no good schematic, just drawing): Video how it works: Operation: It detects rotary pulses on the phone line and counts them according to preconfigured time thresholds, then converts counted pulses to digit, selecting needed audio file from SD card an plays it as a tone to the […]