digital relay 4 channel - without mechanical relay

opto copulers ftom Rs.5

 https://lygte-info.dk/project/DigitalRelay4Channels12V%20UK.html

https://www.electronics-tutorials.ws/power/solid-state-relay.html


Comments

Post a Comment

Popular posts from this blog

RUIDENG HD25 HD35 adjustable DC load tester 5-20 volt 35 watt Load tester for batteries with voltage current display

Image
  we can test batteries and power sources power banks with a meteer in between to test max capbilities or if rated rating are correct. we can set voltage from 5 volt to 20 volts with button and adjust current with a rotating knob.  Max power is up to 35 watt. this is tested in the bellow video. https://robu.in/product/rd-hd35-trigger-qc2-0-qc3-0-electronic-usb-load-resistor-discharge-battery-test-adjustable-current-voltage-5a-35w/
Read more