DC7-28/5V ESP8266 WIFI 4 Channel 30A Relay Module ESP-12F Development Board Secondary Opening

Description Esp8266 four way 30A relay development board is equipped with esp 12f WiFi module I O ports are all led out and supports dc7 28v 5V power supply mode It is suitable for esp8266 secondary development and learning smart home wireless control and other occasions Features 1 Mature and stable esp 12f WiFi module on board large capacity 4m Byte Flash 2 I O port of WiFi module and UART program download port are all led out It is convenient for secondary development 3 The power supply mode supports dc7 28v 5V 4 On board WiFi module RST reset button and a programmable key 5 Esp 12f supports the use of eclipse LDE and other developers provide the reference program for Arduino development environment 6 On board 4 way 5V 30A relay output switch signal to control the load whose working voltage is within AC 250V DC 30V 7 On board power indicator 1 programmable led and relay indicator 8 Board size 122 5 87mm9 Weight 160gGND Rx TX and 5V of burning and writing port esp8266 are respectively connected with GND TX RX and 5V of external TTL serial port module When downloading 00 needs to be connected with GND and then disconnect 00 from GND after downloading Relay output NC normally closed end the relay is short circuited with com before closing and suspended after closing COM public end No normal opened end the relay is suspended before closing and it is short circuited with com after closing Package included 1 x Relay Module