- Stock: In Stock
- Model: ST230041930
- SKU: ST230041930
ote: This product cannot be used directly, it is suitable for ESP8266 secondary development learning, beginners pay attention!
Feature:
Onboard mature and stable ESP-12F WiFi module, large capacity 4M Byte Flash
Power supply mode supports DC7-28V/5V
Onboard WIFI module RST reset button
ESP-12F supports the use of development tools such as Eclipse/Arduino lDE
Provide reference program under Arduin0 development environment
Onboard 8 5V relays, output switch signals, suitable for controlling loads whose working voltage is within AC 250V/DC30V
Onboard power indicator and relay indicator
Product specifications
Board size: 149*80mm
Weight: 140g
Package includes:
1 x 8-way Relay Module
Programming port: ESP8266's GND, RX, TX, 5V are respectively connected to the external TTL serial port module GND, TX, RX, 5V, IO0 must be connected to GND when downloading, and then disconnect the connection between IO0 and GND after the download is complete;
Relay output:
NC: Normally closed, the relay is short-connected with COM before the pull-in, and hangs in the air after pull-in;
COM: public end;
NO: Normally open end, the relay is suspended before being closed, and shorted to COM after being closed.
GPIO lead port introduction:
