ESP-01/01S Relay Module V4.0
This ESP-01S Relay Module based on AI-Thinker ESP-01/01S WIFI module, we use the GPIO0 of ESP-01/ 01S to control the relay by low level. It’s easy to DIY your smart switch to any device by your phone anywhere with this smart relay.
Operating voltage: 5VDC
Communication: ESP01 or ESP 01S WiFi module
Transmission distance: the maximum transmission distance is 400m (open environment, mobile phone equipped with WiFi module)
|MPN||ESP-01/01S Relay Module V4.0|