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“To design a PCB use Autodesk Eagle software, which is a CAD program specifically designed for making circuit boards. This software is free for 2-sided boards up to 80cm². This should be more than enough area for any hobby project …

“In this IoT project, I have shown how to make IoT based Smart Home Automation Using Amazon Alexa & ESP32 to control 8 home appliances from the manual switch & Amazon Alexa App. If the internet is not available, then you can …

“In this Instructable I show you how to make a simple LED chaser circuit. The special thing about this circuit is that it does not use an IC (Integrated Circuit). By using different resistors, capacitors and transistors, I succeeded in …

“In this Instructable I show you how to make a Flip Flop LED circuit. The special thing about this circuit is that it does not use an IC (Integrated Circuit). By using different resistors, capacitors and transistors, I succeeded in …

“While making my previous Instructable (easy infrared proximity sensor) I figured out a few things about using 2 transistors in a row to amplify a very weak signal. In this Instructable I will elaborate on this principle which is also …

“In this Instructable I show you how to make a simple infrared sensor for hobby projects and to learn how an infrared sensor works. I used an infrared sensor with one of my previous Instructables (the automatic hand sanitizer dispenser …

“The Timer circuit turns ON when connection is given and turns OFF automatically after few seconds, depending on the value of Capacitor used in the circuit. Here, I will show you two different ways to make this circuit using : 1 …

“In Manual Mode, control the relay module from Touch Switch & Blynk App. In Auto Mode, DHT11 & LDR will control the Relays Automatically. In this IoT based home automation project, I have made home automation using Blynk & NodeMCU with Touch Sensor …

“I’ve come a long way with my electronics journey since I made my first portable disco. In the original build I hacked together a circuit on prototype board and managed to build a neat, little pocket disco. This time …

“A Simple ultrasonic liquid level controller based on STM32 microcontroller Introduction As you probably know, Iran has dry weather, and there is a lack of water in my country. Sometimes, especially in the summer, it can be seen that the …