Program robot seeks light Program robot to avoid obstacles Program robot to seek light and avoid obstacles at the same time I have came through a long way to figure out how to do this assignment. 1.smoothing The first obstacle I encountered is to smooth the readings from distance sensor(HC-SR04). I…

Arduino Robotics Assignment 8 Do the distance sensor tutorial: http://teachmetomake.com/wordpress/hc-sr04-ultrasonic-rangefinder-arduino-example The graph from processing:

To build a robot that can chasing the light The code: const int in1 = 2;//motor1 const int in2 = 4;//moto1 const int in3 = 7;//motor2 const int in4 = 8;//motor2 const int enable = 3; //the output of motor1's speed const int enable2=5;//the output of motor2's speed int motorSpeed = 200;//the motor’s speed int sensor1Mark…

The robot needs to go forward and backward depends on the two photoresistors: when one sensor senses more light, it goes forward, otherwise, it goes backward. The code: const int in1 = 13;//motor1 const int in2 = 12;//moto1 const int in3 = 9;//motor2 const int in4 = 8;//motor2 const int enable =…

1.Finish soldering H-bridge on a perforated breadboard (don’t forget socket) 2.Finish building robot 3.Test both robot wheels. Because you’ve only one H-bridge, you’ll have to test the wheels one at a time. Make sure both wheels go forwards and backwards The schematics of the circuit. I found to draw it by hand is a very useful method. Because, first, we can mark the wires we have done; second, it can help us learn the circuit.

Today’s class is more on the hardware, an review and refresh about voltage, current and resistor. It reminds me my high school physics teacher, and the suffering time learning it. But it is much easier and interesting now to learn by doing. The assignment: 1.Explain voltage and current in your…

In today’s class, the first half of the class focused on arrays and functions , and the second half of the class Michael taught us how to do soldering. I found there are so many similarities with JavaScript: the concepts of arrays, functions. But there are also some differences, such…

In today’s class, we combined two circuits from previous class. Today’s class is more focused on the code part: we learnt if statement and for statement. Project 1 Build this circuit on your breadboard. It should look familiar, it’s the same combination of two circuits we used yesterday. …

The assignment description is here: http://teachmetomake.com/wordpress/arduino-robotics-summer-2015-cca Build the photoresistor circuit that we used in class, upload the sketch, open the serial monitor, and verify that the numbers change as you allow more or less light to fall on the photoresistor. Make note of the smallest and biggest numbers you get…