Afghan Electronics

Dc motor PWM H-bridge circuit board designed and made by me
this board is able to control the direction and speed of any DC motor
voltage: 0.1v - 90v DC
amp: 2 amp
Can be control by any micro-controller or directly by push buttons
تخت کنترول سرعت و جهت موتور های دی سی دیزاین و ساخت توسط من

Home Security System
Circuit designed and coded by me
This system is 100% unhackable it means this is the most secure system for the homes
It locks the door by using 70rpm and 15kg.cm torque motor which is able to open and close any kind of doors lock
It also have 15000mah li-ion battery backup which is able to power it for a month in cause if no electricity with charge controller circuit which safe the batteries from over charge
This system also have buzzer to alarm if someone enters a wrong password and if somebody tries the wrong password 3 time then the system sends an sms to your mobile or call you "manually can be set"
This system completely coded by me based on atmega ic

Police Light Circuit
سرکت چراغ های موتر پولیس با استفاده از آیسی ۴۰۱۷ و ۵۵۵

Solar Charge Controller
Circuit design and made by Afghan Electronics

(Electric Motor Direction & Speed controller)
This module designed for controlling direction and speed of dc motors, easily can use it with arduino or direct push buttons.
H Configuration
Can handle 900ma based on S9013 & S9012
Voltage: 0 - 50v

From Map design to reality

PWM DC motor speed controller
This is how you can make PWM dc motor speed controller by using 555 timer ic.

Voltage Rang: 3vdc Min - 15vdc Max
Amp: 35 amp Max
Watt: 500 max

To make this Speed controller you need:
- 1 IRF1404 or IRFZ44 + Aluminum heat sink
- 1 NE555, 3v Led
- 1 Capacitor 16v 1000uf
- 3 * Resistor 1K ohm
- 3 * Diode 1N4148 or 1N4007
- 1 * Resistor 10K ohm
- 1 Potentiometer 100k
- 1 Ceramic capacitors 104
- 1 Ceramic capacitors 103
- 2 * Ceramic capacitors 473
- Copper clad board, Wire electric

Follow the circuit to build it.