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Electronics › Electronics › ht12e & ht12d. can’t matching clock frequency.
Hi everyone!!
I'm working with ir communication using HT12E & HT12D encoder and decoder ic. But i'm having problem to set the clock section. i just used a wire from transmitter to reciever pin to check the function of the ic. but it's not working.if i use a wire to treansmit data which resistor i have to use to match the clock frequency?
pls sugest .
thank you.
Actually HT12E nad 12D are for RF …In order to use a IR LED you need to change the encoder to the HT12A series,
On the decoder side keep to use the HT12D
means u r directly connecting data output of HT12E to data input of HT12D using wire?
have u connected the ground wire?
if yes and still u r not getting output then there is miss match in address at both side. connect all address pins A0-A7 on both sides to ground.
for matching clock frequency
at HT12E side use 1.1 M ohm resistor
at HT12D side use 51 K ohm resistor