Dc5v 4 Channel Relay Module PCB Circuit Control Board W Opto-isolator
L
Life Force Energy Australia (3485)
100% positive feedback
Price:
AU $8.00
+ $3.00 postage
Est. delivery Wed, 7 May - Mon, 12 MayEstimated delivery Wed, 7 May - Mon, 12 May
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand NewBrand New
If you wish to connect the relay board so that it is fully isolated, remove the jumper between "Vcc" and "JD-Vcc". Here's what an opto-isolated board looks like, followed by it's circuit diagram, and a photo of the opto-isolator chip.