Introduction: How to Make an Remote Control RC Motor Driver

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In this project, we take a look into a step by step process on 'How To Make An RC Motor Driver Circuit Using CD4017 IC & an IR sensor'. You can make this circuit on Printed Circuit Board PCB to Order
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Step 1: Solder the CD4017

Solder the CD4017 IC on the veroboard, after that solder the middle terminal of the IR receiver to the pin 13 of the IC.

Step 2: Solder a 16 Ohm Resistor

Solder a 16 Ohm resistor between pin 16 & Vcc of the IR receiver. After that, solder a47uF capacitor between pin 13 of the IC & the output (signal) pin of the receiver.

Step 3: Solder Bc557

Solder the collector of the BC557 transistor to pin 14 IC, base to the output pin of the IR receiver & emitter to pin 16 of the IC.

Step 4: Solder Remaining Components

Solder a 150K resistor & a 100pF capacitor between pin 13 & pin 14 of the IC. Then, solder the +ve terminal of the green LED to pin 7 & -ve terminal to pin 13 of the IC. Also, solder the +ve terminal of the red LED to pin 2 & -ve terminal to pin 13 of the IC.

Step 5: Solder Comparator

Connect the +ve terminal of 4V Battery to pin 16 & the -ve terminal to pin 8 of the CD4017 IC & LM293 Comparator.

Step 6: Power Up & Test the Circuit.

Step 7: Working Explanation

The working of this circuit is as follows, the GND pin of the IR receiver serves as an active low input to trigger the CLK Enable pin of the CD4017 IC. the output signal from the IR sensor goes to the base of the BC557 (Q1). The output is set to trigger from pin 2 for +ve edge & pin 7 in case of -ve edge of the clock pulse.