Lego Double Rotation Sensor

Posted on Jun 16, 2012

An opto-interrupter made with Lego beams, regular parts, a 6 hole pulley wheel and an axle.

Lego Double Rotation Sensor
Click here to download the full size of the above Circuit.

I started out with Michael Gasperi's idea with the 6 whole pulley installed in a Lego enclosure with axle and beams so it could move. I used phototransistors and infrared LED's because I thought they would use less power than visible light LED's and CdS p

Leave Comment

characters left:

New Circuits



Popular Circuits

Pwm motor speed control
Combinational circuits Encoder Decoder
circuit transistor tester
usb 5v to 12v dc dc step up converter
low voltage monitor schematic
Ultrasound Sensor
Solid State Power Controllers
Automatic Light Dimmer
Selfrunning Free Energy 5 KW Kapanadze 8
VLF Whistler Reception
Breaker control signal circuit of the electromagnetic actuator