Low voltage? ESP Relay board
Posted: Sat Oct 22, 2016 12:50 pmHere's 'yet another' oriental ESP-8266 based Relay board.
It's not in a case like the Sonoff or Electrodragon, and is a bit more expensive (£7), BUT it may have some advantages over those others.
If I'm not a mile out deciphering the translation, it appears to be an ESP-8266 controlled isolated 10A Changeover Relay board, capable of switching MAINS voltage... but not necessarily limited to mains, therefore could be used for switching low voltages instead. It also appears that the low voltage power supply input is very tolerant of the voltage supply (from 7v to 30v), making it potentially well-suited for real-world applications - including vehicles (12v or 24v).
I can see vacant holes for TX, RX, Gnd, and Reset (so flashing with ESP_Basic shouldn't be a problem), but I don't think it has provision for connecting to gpios (although it looks hackable) so I guess it's just intended for remote switching applications - for which it may be well-suited, and at least offers another potential tool for the use of.
https://www.aliexpress.com/item/New-Arrival-1Pcs-Green-ESP8266-10A-220V-Network-Relay-WIFI-Module-Input-DC-7V-30V-65x40x18mm/32716286119.html?scm=1007.13338.49930.0&pvid=24cad7a1-80c5-42a4-9b96-126d16965677&tpp=1
It's not in a case like the Sonoff or Electrodragon, and is a bit more expensive (£7), BUT it may have some advantages over those others.
If I'm not a mile out deciphering the translation, it appears to be an ESP-8266 controlled isolated 10A Changeover Relay board, capable of switching MAINS voltage... but not necessarily limited to mains, therefore could be used for switching low voltages instead. It also appears that the low voltage power supply input is very tolerant of the voltage supply (from 7v to 30v), making it potentially well-suited for real-world applications - including vehicles (12v or 24v).
I can see vacant holes for TX, RX, Gnd, and Reset (so flashing with ESP_Basic shouldn't be a problem), but I don't think it has provision for connecting to gpios (although it looks hackable) so I guess it's just intended for remote switching applications - for which it may be well-suited, and at least offers another potential tool for the use of.
https://www.aliexpress.com/item/New-Arrival-1Pcs-Green-ESP8266-10A-220V-Network-Relay-WIFI-Module-Input-DC-7V-30V-65x40x18mm/32716286119.html?scm=1007.13338.49930.0&pvid=24cad7a1-80c5-42a4-9b96-126d16965677&tpp=1