A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

今回は前回のLED点灯を押しボタンスイッチで制御します。押しボタンスイッチは、ボタンを押すことであらかじめ決まっているピン同士が接続されます。今回は押しボタンスイッチを押すことで、GND（0V）に接続されたピンとマイコンボードと繋がっている ...

This repository explores the interfacing of 4x4 keypad with an Arduino, but without using any built-in headers. The goal is to completely learn the interfacing mechanism from scratch. The code is ...

今回が最後のプロジェクトです。 フォトカプラーを使って、別回路の押しボタンスイッチを押します。 別回路はSTM32マイコンで用意しました。 これがその別回路です。 押しボタンスイッチを押すと、LEDが点灯します。 今回、Arduinoで作るのは、このSTM32の ...

The ARDUINO IDE associated with the ARDUINO board uses specific numbering, assigning numbers from 0 to 19 to digital pins 0 to 13 and numbers A0 to A5 to analog pins. GCBasic directly manipulates the ...

Makers and developers that enjoy creating projects using the Arduino platform may be interested in a new shield for Arduino that incorporates an LCD JEMshield++, keypad and enclosure all in one. JEM ...

An Arduino project implementing a security alarm system featuring PIN code access via a 4x4 keypad, status updates on a 16x2 LCD, motion detection using an HC-SR04 ultrasonic sensor, and ...

[Andrea] just sent us this great student hack he made for his room. He’s constructed an Arduino keypad door lock — without using any proper fastening hardware! The entire build is made out of scrap ...

DIY musical instruments are their own thing entirely, but if you're looking for a place to start, Adafruit has a guide to building your own MIDI controller using an Arduino. The OONTZ uses a 3D ...