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Arduino only low trig relay

RE: RELAY MODULE KY-019 5V

Postby tlfong01 » 2018-Jun-22 Fri 11:04 pm

tlfong01 wrote: 

2018-Jun-22 Fri 3:11 pm

Now I am connecting Vcc to 3.3V and check out the Vin turn-on-relay and Vin turn-off-relay points.

Now I am testing some NPN Low trigger relays.

ATTACHMENTS
LeQyKJM[1].jpg
LeQyKJM[1].jpg (149.93 KiB) Viewed 1317 times
Last edited by tlfong01 on 2018-Jun-23 Sat 1:04 pm, edited 1 time in total.

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