interfacing

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This topic has 2 replies, 3 voices, and was last updated 9 years, 3 months ago by Ashutosh Bhatt.

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April 13, 2015 at 12:15 pm #3806

sukhman
Participant

how to interface relays with ULN2803 in project home appliances control by voice…..plz reply fast…thnx..

January 18, 2017 at 7:49 am #14348

Hari Prasaath K
Participant

Hi,

If u have uln2803 there are schematics available in net so you can refer to it. Else you can buy a uln2803 relay module available online.

January 25, 2017 at 7:12 pm #14373

Ashutosh Bhatt
Participant

ULN2803 connections are easiest one. one side input – other side output thats all

relay coil terminal is connected to output of chip
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