Making a Robot That Works With the help of an LDR

 Making a Robot That Works With the Help of an LDR

What you'll need:
  • A4 paper (White)
  • Copper Tape
  • Soldering Gun and Its Accessories
  • 5 wires (At least 7-8 cm long)
  • 2 100 RPM motors
  • 2 Toy Tyres 
  • 2 2500 mAh batteries
  • 1 Battery Holder
  • 1 Switch
  • 2 Smartphone-sized MDF Cut-outs
  • Masking/Paper/White Tape
  • 1- 1 cm by the width of the smartphone-sized MDF cutout.
  • Hot Glue Gun
  • 2 LDRs
  • 2 PC547 Transistors 
  • Double-sided tape
Instructions:

Step 1: Print the paper circuit on the A4 sheet and apply the copper tape according to the paper circuit. The PDF is provided below👇. Print the PDF for the paper circuit. 


Step 2: Solder the LDRs and the Transistors at the given places. 

Step 3: Connect the motors to the paper circuit. Then, stick the paper circuit to one of the MDF sheets with either hot or normal glue. 

Step 4: Join the MDF sheet cutouts in the following way. 
Take the two smartphone-sized cutouts and stick one to the other so that one is joined at an inclined angle to the other. Then, paste the small cutout horizontally at the bottom of the inclined MDF cutout. Take the double-sided tape, cut a small thin strip, and paste it before the small MDF cutout. 

Step 4: Take the motors and paste them on the sheet, which is horizontal. Then, take 2 3.7V, 2500mAh batteries, a battery holder and a switch. Connect the switch to the battery holder, and then solder the ends of the battery holder and the switch to the circuit in the following way. Solder the negative end of the battery holder to the negative copper strip and the positive end to the positive copper strip as shown in the paper circuit diagram. 

Step 5: Put the batteries in the battery holder, which you should then stick on its side on the MDF sheet with double-sided tape. Then, stick the switch on top of the battery holder. 

Step 6: Take paper tape and your smartphone. Then, place the smartphone on the phone stand that we've previously made. Then, with the help of the paper tape, connect the two flaps of the paper, where the LDR is, according to the smartphone.

Step 7: Then, remove your smartphone and check whether the apps that we've previously made work. Then, take your smartphone and keep it in front of the LDRs and in the stand. 






The Robot Is Ready!!!






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