Hello.
I am experiencing an odd problem with the HT12D/E using wireless transmission. I have setup the included schematic on a breadboard and it works perfectly (sorry for the low quality). I push the button connected to the HT12E and the LED attached to the HT12D comes on. When I release the button, the LED goes off. No problems.
The issue arises when I move the circuit containing the HT12E to a PCB proto board and solder it in place. Now when I push the button the LED comes on and stays on until I cut the power off to the HT12D. The only thing that seems to cut the LED off while powered is if I use my fingers to bridge the switch (I assume due to the high resistance, but I don't know why). I have done this three times now, always with the same result.
I have swapped out the ICs and the wireless components, as well as bridging the data from the 12E on the PCB to the 12D on the breadboard. I have also checked values from the working breadboard to the PCB. I can't find any differences. It's always the same result.
I can't for the life of me figure out what's going on. I'm still pretty new to electronics, so I'm sure I'm missing something obvious.
Thank you,
Matt
I am experiencing an odd problem with the HT12D/E using wireless transmission. I have setup the included schematic on a breadboard and it works perfectly (sorry for the low quality). I push the button connected to the HT12E and the LED attached to the HT12D comes on. When I release the button, the LED goes off. No problems.
The issue arises when I move the circuit containing the HT12E to a PCB proto board and solder it in place. Now when I push the button the LED comes on and stays on until I cut the power off to the HT12D. The only thing that seems to cut the LED off while powered is if I use my fingers to bridge the switch (I assume due to the high resistance, but I don't know why). I have done this three times now, always with the same result.
I have swapped out the ICs and the wireless components, as well as bridging the data from the 12E on the PCB to the 12D on the breadboard. I have also checked values from the working breadboard to the PCB. I can't find any differences. It's always the same result.
I can't for the life of me figure out what's going on. I'm still pretty new to electronics, so I'm sure I'm missing something obvious.
Thank you,
Matt
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