In this post I will show how to construct a 10 channel remote control switch circuit based on ISM (industrial, Scientific and Medical) band. Introduction The ISM band is operated at 2.4 GHz, which can be used without licensing with reasonable power output. The proposed project is general purpose ON/OFF wireless switch, which can be […]
Newly Updated Circuit Projects:
Arduino PWM Signal Generator Circuit
In this post we elaborately study how to make an Arduino based PWM signal generator circuit, which can be set or adjusted with a potentiometer or a pot to any preferred duty cycle ratio. WHAT IS PWM? pwm or pulse width modulation as the name itself suggest is modulation of width of the pulses i.e. […]
High Current Motor Control Circuit using Arduino
In this project, I have explained how to control motor speed using Arduino PWM circuit, and how to implement reverse forward or direction control in a DC motor using Arduino through a couple of push button switches. Any high current motor upto 30 amp can be controlled using this set up. Introduction Motor is a […]
Car Reverse Parking Sensor Circuit with Alarm
In this post I will show how to construct a car reverse parking sensor alarm circuit using arduino, ultrasonic sensor and 2.4 GHz transceiver module. This project can be add-on feature for your car if it doesn’t sport a build-in parking sensors. Introduction The proposed project has similar functionality as traditional car parking sensor has, […]
Universal ESC Circuit for BLDC and Alternator motors
In this post I have explained a universal ESC circuit or an electronic speed controller circuit which can be universally applied for controlling any type 3 phase BLDC or even an alternator motor. What is an ESC An ESC or electronic speed controller is an electronic circuit which is normally used for operating and controlling […]
L293 Quad Half-H Driver IC Pinout, Datasheet, Application Circuit
In this post we investigate the technical specifications and pinout details of the IC L293 which is a versatile quad half-H driver IC, and can be used for implementing many interesting motor driver based circuit applications, such as for operating motors, solenoids and other inductive loads (4 units separately or in pairs through push-pull mode). How […]