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 ...

モノクロ引き伸ばしLPL 7700の光源をRGBカラーLEDに改造することで、カラー写真の引き伸ばしに挑戦します。 モノクロ引き伸ばし機でカラープリントをする場合、一般にCMYのカラープリントフィルターフィルターを入れてカラーバランスを調整します。

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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 ...

Day6. では、Arduinoの基本的な使い方について書きました。 しかし、複雑な動作をするものを作れ！と言われても、まだまだ困ると思います。 今回は、値をアナログチックに変えてみたり、センサからの入力を受け取ってみたりといった、数値処理や入出力の ...

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 ...

/* 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 ...

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 ...