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Build a Simple Circuit from a Pizza Box (No Soldering)

Build a Simple Circuit From a Pizza Box (No Soldering)

This would be a great way to create student operation games without having to solder! I think that grade students would love to try this out.

I am using LASER and LDR for this purpose. From the transmitter, I will send low frequency pulses using LASER to the receiver. The LDR on receiver side will receive these pulses in form of LASER light. It will trigger monostable multi-vibrator to regenerate same pulses. These pulses will further drive the stepper motor through driver circuit. So as anyone changes pulse frequency from transmitter, the stepper motor speed will change accordingly

I am using LASER and LDR for this purpose. From the transmitter, I will send low frequency pulses using LASER to the receiver. The LDR on receiver side will receive these pulses in form of LASER light. It will trigger monostable multi-vibrator to regenerate same pulses. These pulses will further drive the stepper motor through driver circuit. So as anyone changes pulse frequency from transmitter, the stepper motor speed will change accordingly

Ideas for the setup of your LDR circuit.  Has Arduino

Ideas for the setup of your LDR circuit. Has Arduino

Simple Dark sensor LDR circuit..

Dark Sensor With LDR, Transistor and a LED

Best Robotics project ideas for final year engineering students have been listed here. RF controlled robotic vehicle, bomb detection robot, etc.

100+ Robotics Projects for Final Year Engineering Students

Best Robotics project ideas for final year engineering students have been listed here. RF controlled robotic vehicle, bomb detection robot, etc.

Dark Detector Alarm Circuit Diagram using LDR and 555 Timer IC

Dark Detector Alarm Circuit Diagram using LDR and 555 Timer IC

This simple circuit can be used as an automatic bathroom lamp controller. It disables the bathroom lamp at daytime and enables it at night. The circuit is built around a light-dependant resistor (LDR1), reed switch (S1), two transistors BC547 (T1) and SK100 (T2), a 12V 1-change over (C/O) relay (RL1), a step-down transformer X1 (12V-0-12V, …

This simple circuit can be used as an automatic bathroom lamp controller. It disables the bathroom lamp at daytime and enables it at night. The circuit is built around a light-dependant resistor (LDR1), reed switch (S1), two transistors BC547 (T1) and SK100 (T2), a 12V 1-change over (C/O) relay (RL1), a step-down transformer X1 (12V-0-12V, …

A simple sensitive intruder alarm circuit diagram and schematic using NE 555 IC, 741 IC as comparator and an LDR.This is a good thief/theft alarm circuit for home.

A simple sensitive intruder alarm circuit diagram and schematic using NE 555 IC, 741 IC as comparator and an LDR.This is a good thief/theft alarm circuit for home.

http://www.newark.com/photo-light-dependent-resistors-ldr  Light Dependent Resistors work like in your car sensing the sun.  When it gets dark the resistors ohmic value goes up and triggers the light circuit to come on.

http://www.newark.com/photo-light-dependent-resistors-ldr Light Dependent Resistors work like in your car sensing the sun. When it gets dark the resistors ohmic value goes up and triggers the light circuit to come on.