Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

Standex Electronics has created a reed relay that measures 7.95 x 4.67 x 3.6mm and can switch 100V, 200mA, 3W or 8GHz. 8GHz is the -3dB frequency, at which the switch offers -5dB isolation when open. ...

Circuit Fig. 3 shows the circuit diagram of the automatic water level indicator cum controller. It is built around an Arduino Uno board (MOD1), three LEDs, a 5V SPDT relay, and other components. First ...

Pin 9 (D9) connects to the base of the relay driver transistor BC547 through resistor R2 and LED1. The Arduino Nano processes inputs from the PIR motion sensor. When motion is detected, the sensor ...

Arduino Uno R4 WiFi comes with built-in Wi-Fi and Bluetooth capabilities, along with additional pins and a new, faster processor.

Arduino projects can help ease the learning curve of getting into programming, and even add some smart functionality to your everyday tasks around the house.

The relay module will need 5V from Arduino to power up and will get input from four different digital pins of the Arduino. Now let’s connect the relay module to your home appliance. Take the positive ...

This article will explore the workings of a relay module and provide a detailed guide on how to interface a single channel relay module with an Arduino.

Hobbyists, electronic enthusiasts and makers may be interested in a new 4 channel relay board aptly named the RelayFi. The 4 channel smart relay board is powered by a ESP32 WROOM providing the ...