This project is about the design and subsequent implementation of independently operating active cooling for LED components. Its basis is a 12V fan used for efficient heat removal. ATMega16 microcontroller was used as the control element. A circuit that effectively and appropriately meets the current cooling needs of the LED module using external sensors, increasing…
Simple Circuit for measuring low resistance values. It is designed to measure low resistance values from 0.01 to 19.99 Ohms. The measurement circuit and the voltmeter must be fed from two separate power sources (battery). You MUST Use Two Separate 9 Volt Batteries in All These Circuits. Using a double-contact switch, you can connect both…
When implementing control systems, you may encounter many problems of an analog-digital nature. One of these is to detect whether alternating current of a certain intensity passes through a particular cable; This could be a signal that the machine is working properly or vice versa. Current Transformer Module relieves the designer from the burden of…
I implemented the “200watt 300watt 400watt 500watt Amplifier Circuit” project that I shared years ago. Actually, I wanted to do it when I shared it, but quiescent current adjustment, measurements etc. I don’t like it 🙂 But after receiving occasional feedback about this amplifier for a long time, I wanted to try it. Since the…
A more stable, stable version of the 100 Watt Mono Amplifier known as ZENER in Colombia. It can deliver 100W power with an 8 Ohm speaker and can also be used with a 4 Ohm speaker. Its noise is very low, and it does not make an explosion sound when opened. Even though I use…
When the DS18B20 Temperature Sensor is transported over long distances, there is a danger of high voltage pulses being transmitted to the cable connecting the sensor to the control unit. If protective measures are not taken, the induced high voltage will lead to degradation of the crystal substrate where the sensor is located. This causes…
A hot silicone gun was used extensively for a contract job. Since it did not heat up quickly, I solved the problem with a simple rectifier circuit. It was used for about 2 weeks and it did not cause any problems, but constant exposure of the resistor to high voltage may cause problems. I decided…
Magnet polarity detector. You can find out where the south or north of the magnet is by bringing another magnet of known polarity. And if the pole of a known magnet attracts the side of the magnet with polarity, it is opposite if it is unknown (the pole of the unknown magnet). In other words,…
The Hakko 907 Soldering station is built on Arduino Nano, so you won’t need a programmer and various adapters for it again. The circuit has minimal parts and requires no adjustments. Hakko 907 soldering iron circuit has been used for about 5 years and has never caused any problems. Hakko 907 Driver Circuit Features: Designed…
SG90, SG-5010 etc. You can control 24V DC Motor using the Mini Servo Motor driver. PC817 opto couplers and then IRL2203N mosfets are connected to the outputs of the motor driver module. The motor is driven by PWM signal. The circuit was used for steering control of the electric bicycle. 24V DC motor ZGB70R-60SRZ-1 with…