Remember the ground of the Arduino and the remote are connected together. Then declare the pin as output in the main loop (pinMode(5,OUTPUT) ), set it to LOW for a few ms (digitalWrite(5,LOW) ) then (delay(20) ) then declare the pinMode to input again, (pinMode(5,INPUT) ) and so on with the rest of the program. Also make sure to debounce the button in hardware or software. Since the Arduino doesn't have an "open collector" command for the I/O pins, having just +5 volts or ground as outputs, you would need to keep your I/O pin as an input (don't need to declare this in setup) until you need to ground it. Instead of constantly polling you could use an interrupt on the button pin and set a flag or call a function from within the interrupt routine. It is possible that the I/O pins themselves could handle the load of the button press to ground. Use another transistor for the close function, using another I/O pin. Apply a positive pulse of some duration to the I/O pin, that causes the transistor to conduct to ground. Collector to the part of the button that would get grounded. Emitter of transistor to ground of Arduino (and ground of remote). Connect a I/O pin (as an output) to a 300 ohm resistor to base of transistor. I think an NPN transistor like the 2N2222 would work as a switch, try it. Is this possible on a pro trinket board? Any help would be greatly appreciated! I see it as having zero inputs, and code needs to take a 5v signal and connect it to ground as the output.
ARDUINO BUTTON PRESS HOW TO
I'm SO confused on how to connect the board to the wires (if it's even possible). I was thinking I'd start with this code, sending the open command, then waiting 2 mins, then send the close command, then repeat.
ARDUINO BUTTON PRESS FULL
When you push the button, it grounds the signal and the blinds run the full length of travel in whichever direction is pushed (you don't need to hold it).īefore I begin diving into the code for the Amazon echo part, I'd like to get some basic code which just shows I can simulate a button press on the remote with my pro trinket board (without pushing any buttons myself). There are 3 wires, 2 which are 5v (open, close) and a ground wire. First step was taking apart the remote, which yielded a very simple interrupt circuit. I'd like to control this with Amazon echo.
I've got a hardwired remote with 2 buttons that controls my motorized blinds.
I'm new to the arduino world, so apologies if this is a simple question.
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