Product Description:
Features
- Onboard ESP32-WROOM-32E module with large capacity 4M Byte Flash
- The I/0 port and UART program download port of the ESP32 module are all led out to facilitate secondary development
- Onboard ESP32 module IO0 programmable and reset button
- ESP32 supports the use of Arduino IDE development tools
- Four Onboard 5V relays, output switch signal, suitable for controlling the load whose working voltage is within AC 250V/DC30V
- Onboard 1 programmable LED and relay indicator.
Interface Introduction
- Programming port: GND, RX, TX, 5V of ESP32 are connected to GND, TX RX, 5V of external TTL serial port module respectively
- IO0 needs to be connected to GND when downloading, and then disconnect the connection between IO0 and GND after downloading is completed
Relay output
4 x Single Pole Change Over - One normally closed and one normally open contact.
Third-party demo link
https://www.youtube.com/watch?v=xPlN_Tk3VLQ
