sound robot diy electronic kits

This is a sound robot reversing car DIY electronic kit and user who need to follow below 3 step to finish the robot car.

Step 1: Welding circuit Electric welding part is simpler, welding sequence according to the principle of component level from low to high, the first welding eight resistance, is important to use multimeter to confirm resistance is correct.

Step 2: Mechanical assembly The red line is connected to the 3V positive power supply, the black line grounding, excess wire can be used for motor wire.

Step 3: After finished the robot car assembly, put 2pcs batteries inside the battery case and switch on the power , the robot car will go forward automatically , until it receive the hand clapping or high frequency singal...then the robot car will backward a few second..

Tool needed :