A3935 Lightning Detector with ESP-12E and Relay Module Used to disconnect my ADSL2+ modem from the phone line before it is fried by lightning strikes. Uses NTP for accurate logging, also ArduinoOTA for Over The Air programming, mDNS as well as PubSubClient for MQTT
Based on Eva Schindling's https://github.com/evsc/ThunderAndLightning Hardware, NodeMCU https://cmheong.blogspot.com/2019/10/thunderbolts-and-lightning-detector.html Hardware, relay module https://cmheong.blogspot.com/2019/11/lightning-detector-as3935-adding-serial.html Installation, software https://cmheong.blogspot.com/2019/11/lightning-detector-as3935-part-3-of-3.html