Hello, I am in the process of making a remote control. I would like to connect 10 toggle switches (see image) [Toggle switch] to my arduino boards so that I have 10 separate digital inputs of 0 or 1. How should I connect these? Is that also with resistors? If so, how? Thanks in advance! Greeti…

Center pin to GND, one of the other pins to an Arduino pin. Use the built-in pull-up resistor.

Yes, but you have to use also the VCC right?

No, no VCC needed. [20240327_165139]

Example code: #define SWITCHON LOW const uint8_t switchPins[] = {2, 3, 4, 5, 6, 7, 8, 9, A0, A1}; void setup() { Serial.begin(115200); for (uint8_t cnt = 0; cnt < sizeof(switchPins) / sizeof(switchPins[0]); cnt++) { pinMode(switchPins[cnt], INPUT_PULLUP); } } void loop() { for (uin…

[image] yorbus: Yes, but you have to use also the VCC right? It's there but it's connected through a resistor internal to the processor. See S3 in the diagram below. [SwitchesAndLEDs]

FYI You also have the option of using one GPIO pin connected to an IR receiver. [image]

@LarryD , is the image posted by @dougp yours? I would like to give credit if I use it.

Yes I drew it up. It can be found here: [image] Share tips you have come across General Electronics Different circuit schematics to refer to: DIY basic Logic Probe and Logic Plulser. @ 5V, Logic Probe's load is ~1.6mA. [2025-06-27_00-57-58] [Switches …

It is VCC when you set pin mode to INPUT_PULLUP pinMode( pin, INPUT_PULLUP ); that pin sources VCC through 20K to 50K resistance. It is very weak but it is VCC that you can safely ground. The pin reads LOW when grounded.

How to connect 10 toggle switches to an arduino board?

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LarryD March 27, 2024, 3:54pm 9

Yes I drew it up.
It can be found here:

It’s just a summary I put together.

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How to connect 10 toggle switches to an arduino board?

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