Date: 06/10/2015
Week 1
Farnell, Leeds
Laboratory Report
Objectives
The objectives for this week was to start constructing the Asuro Robot. This was to be achieved by soldering the six switches to the front of the front of the robot with the corresponding resistors.
Equipment Required
Solder Iron
Multimeter
Solder
Wire cutters
Asuro Robot kit
PDF about the robot
Execution
Firstly the kit had to be opened to obtain the CD ROM containing the PDF file showing the circuit diagram and the resistor values. The kit was also examined for any missing parts or obvious defects to the circuit board, which luckily there was nothing outstanding. Soon after, the resistors got sorted into groups with equal value, to help determine that the PDF also contained the sequences for the resistors and the number that corresponds to their place on Asuro.
Above is the circuit diagram of the Asuro Robot.
Above shows the series of resistors.
Once the resistors have been separated into their own piles dictated by their Ohms, , the switches (K) got soldered on and so did the resistors at places R24 to R30. The voltage drops were then tested through R24 using a multimeter, the results were
| Resistor | Voltage Drop (V) |
|---|---|
| R25 | 3.4 |
| R26 and R32 | 4 |
| R27 | 4.5 |
| R28 | 4.7 |
| R29 | 4.88 |
| R30 | 4.9 |
The voltage drops were within +/-20% of the recommended allowance.
These drops are required for later on after the build when the programming begins as when one or more switches have been activated the robot can react to any changes such as rotating or reversing.
Above is the finished goal with the switches and resistors soldered on to the switch board.