Making A LDR Robot Which Works on Commands with the help of a Smartphone
Making A LDR Robot A Light Dependent Resistor (LDR) works on the principle of photoconductivity. The Light Following Robot's working principle is called as PHOTO-TAXIS. Photo means Light, The robot moves towards the brightest light source. It uses two LDR (photo resistors) and two transistors - one for each motor. When light falls on LDR's the circuits resistance drops down and through the Transistor approx. 1Amp current flows thus the motors rotate and the robot moves. Hardware Required C onnecting wires Stripper 2 nos. NPN BC 547 Transistors 2 Light Dependent Resistors Paper Circuit Template Copper Tape Soldering Gun Soldering Metal Switch Hot Glue Gun Small Screws 4 nos. Caster Wheel Big Screws 7 nos. Nuts 11 nos. Metal Chassis Paper Tape 60 RPM Motors 2 Nos. Robot wheels 2 nos. Cable Tie 2 nos. 3-D Printer 4 V Batteries 2 nos. Battery Holder Drilling Machine Procedure C ut out the paper circuit template from the A-4 size paper. You can find the paper circuit ...
