Morse code beacon for Arduino or ESP8266
Video about this device: https://youtu.be/Mw76lK94tRw
Apps that work:
- Morse Code Agent (Standard) https://play.google.com/store/apps/details?id=com.erdatsai.morsecodeagent
- Morse camera light chat receive send text torch https://play.google.com/store/apps/details?id=com.g.LightComm
ESP8266: https://s.click.aliexpress.com/e/_97j7kp
DC-DC Converter: https://s.click.aliexpress.com/e/_dWvPhXW
Powerful 12V LED: https://s.click.aliexpress.com/e/_AETmMd
IRF540N MOSFET: https://s.click.aliexpress.com/e/_AFz5Pf