Week 8. Electronics Design

Group assignment:

Use the test equipment in your lab to observe the operation of a microcontroller circuit board (as a minimum, you should demonstrate the use of a multimeter and oscilloscope)

Oscilloscopes

Oscilloscope is a device used for testing and displaying voltage signals as waveforms, visual representations of the variation of voltage over time, which is frequency.

Our lab is equiped with GDS-12028 oscilloscope which has 200MH dual channel, cursor indicator, digital voltage meter and data logging, etc. This scope also supports I2C/SPI/UART/CAN/LIN serial bus trigger and decoding functions. Zero Key function for horizontal time, vertical voltage and triggering

We tried measuring Pulse Width Modulation using quentorres board. For this we created a simlpe circuit with a variable potentiometer as instructed by in the example code in arduino.

Using the Probs connected to the channel 1 of the Oscilloscope, which was connected to the led pins, we observed the changes in wavelength with change in resistance in oscilloscope.

Multimeter

We both knew how to use the portable digital multimeter so we tried using other multimeter we had. It was not that different to using a portable multimeter.

Voltage testing:

Testing the value of Capicitor.

Testing Resistor