今回は、Arduino UNO R4を使ってLEDを光らせる方法を解説します。 ELEGOOのLearningキットE3という電子工作キットを使った、初心者でも簡単に遊べるレシピです。 完成品のプログラムも載せているので、安心してください。 ぜひ、最後までチャレンジしてみて ...

I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, I’d ...

今回は、7セグメントLEDの使い方についてご紹介します。 7セグメントLEDは、デジタルの0～9の数字を表現できるLEDディスプレイです。 本稿ではその基本的な使い方と、応用例としてArduinoを使った電子サイコロの作り方を解説します。 YouTubeでは、7 ...

I use an Arduino Pro Mini 3.3V 8MHz (328P) here, with a nRF24L01+ module attached to pins 7(CE), 10(CS) and 11-13 (SPI). There is a led with resistor attached to pin 9 which should be PWM-capable. I ...

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This LED DIMMER is an Arduino Uno based PWM (Pulse Width Modulation) circuit developed to get variable voltage over constant voltage. The method of PWM is explained below. Before we get start building ...

You can fade out and fade in the light of an LED automatically by using Arduino and a simple code that is described below. Even though the Arduino board cannot output variable voltage on its digital ...

Building IoT projects with touchscreens used to be a headache, involving numerous components, messy wiring, and endless troubleshooting. But the ESP32-S3 Box-3 makes things way easier. It is an all-in ...

/* serial_pin_control_with_breathing - take commands from serial and light or extinguish leds based on it Demonstration of taking serial commands while doing something else. */ int max_led=7; int ...