ESP32 2 Channel 5V Relay Module 4M Byte Flash Large Capacity Programmable Relay Board for Secondary Development Learning

Mature and Stable Module: This module supports I/O port as well as UART program download port all pinout, programmable keys and reset keys, mature and stable. : The relay board is equipped with and BLE modules Output Switching : This relay board contains 2 way 5V relay with output switching , suitable for controlling loads with operating voltage of AC250V or DC30V or less. Large Capacity: This relay module has a large enough capacity of 4M, you can use it with the actual situation. Applicable Scenario: This relay module is suitable for secondary development learning, smart home, control, etc. If you have related needs then this one is suitable for you.