Garage Door Control using a Single Push Button
Hi Mario, which resistor did you use in parallel to the 10uF capacitor, by the way did you include the 10uF cap which is specifically introduced to handle debouncing effect of the switch?
We can actually improve the switching actions by adding a buffer stage between the switch and pin#14 of the IC. First we'll rty with a simple BJT stage, if still the results are not satisfying then be can try a CMOS gate instead.
The instant reversing can be achieved through another push switch, I'll show how to do it, however the mentioned limit switch issue could be a little challenging, will require some time to fix it.
I will be back soon with most of the details
I don't think the file actually reached me...you can share through Google drive if possible.
Please modify the input side in the following manner, this might give you a foolproof results.
Hey Swag i sent you a picture of the wiring i did with the alteration for the garage door opener.
probably need to spend some more time with it for it to work properly because as it is the motor is in motion from the get go and doesn't stop with the push button but rather only with the limit switch installed by the push button. the second limit in series with capacitor didn't have an effect on the circuit so to it out in the interim.
yes i saw the pic. You can do some further tweaking...replace the pin#10 resistor with a 1K resistor, and connect a 100K resistor parallel to the 1uF capacitor associated with the start limit switch.
Please note that you must initiate the circuit by first resetting the circuit. It must be done by applying positive supply to pin#15 of the IC, or simply by switching OFF the circuit for a few seconds and then switching ON power.
If the "finish limit switch" is working correctly then the problem could be with your push button, try replacing it with a new one.
Good day Swag,
Pretty close to perfecting this project and I am ever so grateful for your help.
Sent you a video showing how the circuit is working with the push button, limit switches and wireless remote control.Hope you got it.
when the finish side limit switch is triggered the push button no longer works since the circuit now stays closed. can it be wired elsewhere in the circuit similar to the start side limit switch?
As seen in the video, there are a few times when the push button or remote are pressed, the motor may skip an output. Is there anything else I can do to filter the extra outputs and get the best response from each tap of the push button or remote?
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