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Simple electronics

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Here is a Simple Touch Switch using 2n2222 Transistors Electronics Project for beginners

In this tutorial, we are making a project of a Simple touch switch circuit. It is used to activate a relay instead of an LED and resistor so

Simboli per disegno schemi - Benvenuti su OfficinaHF!

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NTE Electronics Circuit: Simple Electronic Code Lock

The circuit diagram of a simple electronic code lock is shown in figure. A 9-digit code number is used to operate the code lock.When power supply to the circuit is turned on, a positive pulse is applied to the RESET pin (pin 15) through capacitor C1. Thus, the first output terminal Q1 (pin 3) of the decade counter IC (CD 4017) will be high and all other outputs (Q2 to Q10) will be low. To shift the high state from Q1 to Q2, a positive pulse must be applied at the clock input terminal (pin…

How do I calculate what resistors I need for RGB LEDs with 3.7V? - Electrical Engineering Stack Exchange

I have a total of 4 x RGB LEDs. I am hoping to power these as well as a RFduino BLE module with a 3.7V lithium rechargeable battery. I was just wondering how I would go about calculating the resi...

Controlling your door lock through your personal cell phone was never this easy. Learn how to build a simple electronic circuit that will help in converting your ordinary door lock […]

Controlling your door lock through your personal cell phone was never this easy. Learn how to build a simple electronic circuit that will help in converting your ordinary door lock […]