Hi, I'm trying to use your code with Arduino nano and mcp23017, by connecting buttons to mcp23017 pins. In the code I found comment: // Row params: button pin - pin used for button, can be expander ...

!!! There are 2 flavours of arduino boards - powered by +5 volts or +3.3 volts !!! !!! If you have +5V Arduino version - disconnect it from USB before connecting to a wheelbase !!! !!! Just power your ...

Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...

You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

Makers, developers and hobbyists that enjoy tinkering with Arduino wearable open source electronic hardware and creating projects using Bluetooth connectivity, may be interested in a new tiny button ...

Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small boards ...

Twidec 12Pcs 1A 250V AC Pins SPST Colors Normal Open Mini Momentary Push Button Switch with Pre-soldered Wires PBS-110-X6C Gikfun TACT Switch Push Button for Arduino PCB (Pack of 50pcs) EK1019 weideer ...

Makers, hobbyists and electronics enthusiasts looking for a project to keep them busy this weekend may be interested in a new DIY Arduino arcade game project which uses LEGO bricks and Arduino ...