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5V ESP8266 2-Channel WiFi Relay Module with ESP-01 WiFi Module and 8 Bit MCU

Part No: HKD ESP8266 5V DUAL RELAY WIFI

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Having two modes:

Transmission distance:

In the open environment, the maximum transmission distance is 100m when the cell phone carry on the wifi module directly ;
when the wifi module and cell phone carrying on the same router, the transmission distance depend on the router’s signal intensity;
Use Smartconfig technology of ESP8266 to configurate the password for the ESP-01 module with APP
On-board 5V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times
On-board model selection and working position indicator LED
On-board preserved UART debug interface and MCU program interface
Size: 59*40mm

Interface and sources:

IN+, IN-: 5V power input
TX, RX: UART communication
SWIM, NRST: MCU program interface
S1: Mode selection key, default is mode 1
S2: Restore key
LED D2 and D4(red): Relay indicator
LED D7(red): Mode 1 indicator
LED D5(blue): Mode 2 indicator
LED D6(green): Working state indicator, the description of D6 as below:
- It means internal self-configuration or lost connection with the router when D6 off
- It means the ESP-01 are waiting for the APP configurate the password for it when D6 fast blink every 0.5S
Package includes:
1 X 5V ESP8266 Dual WiFi Relay Module Internet Of Things Smart Home Mobile APP Remote Switch