Week 3 - 17/2/2017

 This week we concentrated on the motor drive circuit, this consisted of the missing chip that we ordered last week and then figuring out what voltage would be supplied from the batteries as well as what was actually need to power the motors without blowing any of the other components.

The motor drive circuit was quite simple to connect together when we found out what the input voltage from the batteries and each which set up the motors needed.

               

We also connected the switch into the circuit, from the battery with proper connections. After understanding how the switch works and how we could connect it to our circuitry, we then connected it to the battery holder. Essentially, we can now switch on/ off the supply from the battery holder to the remaining circuits, this therefore giving us more control over the use of the RC.

  

As discussed in the previous group meetings, we figured out how to connect the 3-pinn ultrasonic sensor to the Arduino. We then ran some program on the Arduino and tested out the ultrasonic sensor circuit.

With the sensor circuit, motor drive circuit and ultrasonic sensor completed. All the different circuits were connected to the battery supply and the toggle switch was implemented into the design.

After connecting all the circuit to the battery supply, the different circuit were tested again to make sure that they were still working and were properly connected to the toggle switch. Note that the Arduino is connected to an independent power supply and so was not connected to the battery supply.