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Push-Pull Driver
The circuit in this demonstration uses two variable voltage supplies and four transistors to control a motor. It is sho… full details...
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Bidirectional Motor Control using a pretend L293D
This activity demonstrates how a microcontroller can be used to drive a motor both in forward and reverse directions. T… full details...
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Pulse Width Modulation
This activity introduces pulse width modulation, and aims to demonstrate how the speed of a d.c. motor can be controlled… full details...
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Disco Lights
This activity introduces looping through a program 'N' times, and uses the binary number system to control outputs. The… full details...
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Pulse Width Modulation II
This activity introduces pulse width modulation as it is used to control the speed of a d.c. motor. The theory behind P… full details...
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Black Line Follower
This activity studies a flowchart and microcontroller that could be used to control a buggy so that it automatically fol… full details...
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Auto Reverse Buggy
In this activity students interact with a flowchart simulating a buggy with two motor-driven wheels. They will then exp… full details...