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The I2CKeyPad library implements the reading of a 4x4 keypad by means of a PCF8574. Smaller keypads, meaning less columns or rows (4x3) can be read with it too. Since 0.3.2 the library allows a 5x3, ...

The Keypad library is designed for driving matrix style keypads (matrix decoder) when using the Arduino platform. It uses the standard method of selecting a column and scanning all the rows to see ...

This Arduino-based dual-mode scientific calculator is a versatile and efficient tool for both basic and advanced calculations. In normal mode, it functions as a standard calculator, performing ...

So you finally decided to hop on the Arduino bandwagon and start making electronic projects as a fun hobby. As a beginner getting started with Arduino, your first instinct is typically to buy a ...

Today, We will review the Cytron Maker Uno RP2040 development board combining the Arduino UNO form factor with the Raspberry Pi RP2040 microcontroller that makes it programmable with the Arduino IDE ...

Like so many of us, [EducatedAce] has been quelling the quarantine blues by resurrecting old projects and finding new challenges to fill the days. He’s just finished building this blocky macro keypad ...

Tomisin is a staff writer at MUO with a penchant for breaking down complex topics into easily digestible bits. He joined the team in late 2022 as a contributor to the DIY section and specializes in ...

Cherie is a Creative Technologist who joined MUO in 2021. She's an avid maker and technical writer, with experience using Raspberry Pi, Arduino, Micro:bit, ATtiny, and ATMega devices as well as ...