The concept of automation is getting popularity among people these days and many of them control their lighting, climate, etc remotely at their homes. Several microcontrollers or microprocessors can ...

注意点 電源：リレーが消費する電流に注意してください。必要に応じてArduinoよりも高い電源をリレーモジュールに供給することが必要です。 電気的ノイズ：リレーを使用する際には、電気的ノイズやスパークが発生することがあります。適切なスナバーやフィルターを使うことでこれを抑制 ...

Normal: Manual control of each relay All ON: Activate all relays All OFF: Deactivate all relays Alternating: Alternate between odd and even relays Sequential: Activate one relay at a time in sequence ...

Before you continue, remember that if you will connect the relay to High Voltage then incorrect connection or improper use could result in serious injuries or death. So be very caution of what you 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 ...