リレーモジュールの選択 リレーモジュールはArduinoと直接接続できるように設計されており、内蔵のドライバ回路が含まれていることが一般的です。 これにより、ArduinoのGPIOピンが直接リレーを駆動できます。

全てのリレーをオン状態にするテストはできていない MCUで信号をLowにするとリレーがオンになる LowとHighの扱いは、プログラムでどうにでもなると思っていたが、プログラム開始時にピンがLowになってしまい、意図せずリレーがオンになってしまうことが ...

A relay module is an electrical component. Various industries use this circuit board that houses one or more electric switches or relays in different circuits and electrical projects. Relay boards are ...

In this project, we are going to build something very simple project, a temperature controlled relay that is used to turn on a dc fan. You can actually change the DC Fan to other electrical devices ...

Radio Frequency Identification is widely used in contactless payment cards, National Highway Tollgate systems, and in security passes. By integrating an RFID reader with an Arduino, you will be able ...

Opening the gate through HikConnect door station was fine, but closing the gate was a tricky part. Door station closes the circuit at least for 1 second! And couldn't be decreased! The time resolution ...

First of all run npm install in the example folder. This will install all required dependencies and you'll be ready to go. In the first step of this example, we need to configure and run a relay node ...