16-Channel Relay Module Board with optocoupler Resistance to Temperature The two IR LEDs on

The two IR LEDs on either side of the camera emit infrared light which is invisible to the naked eye and the camera is sensitive to this light

Instead of screwing into plastic

Note: Do not connect or disconnect a motor while the driver is energized

We notice that most engineers spend much time in application development but get unpleasant results

Heltec ESP32 LoRaWAN library (a standard LoRaWAN protocol library provide by Heltec Automation

16-Channel Relay Module Board with optocoupler Resistance to Temperature The two IR LEDs onThis is a 5V 16 Channel Relay Module with Light Coupling LM2576 Power Supply, Be able to control various appliances and other equipment with a large current. It can be controlled directly by Micro controller (Arduino, 8051, AVR, PIC, DSP, ARM, MSP430, TTL logic). This is 5V 16 Channel Relay interface board and each one of the individual relays needs 15 20mA Driver Current. The board features indication LED for Relay output status and the standard