Output Devices

Here's a summary about what you'll see next:

1) Group Assignment
2) Individual Assignment:
  1. OLED
  2. 1.28 tft GC9A01
  3. N-Channel Mosfet
3) Original Files

1) Group Assignment:

This week was about output devices and our group assignment was to measure the power consumption of an output device so we used the power supply and multimeter to do our measurements.

To measure the current running in the circuit and compare the results we put the multimeter in series with the light.

2) Individual Assignment:

For my individual assignment I wanted my hero shot to be my failed and non-failed PCBs as this week was really rough. Everything stopped working or didn't even start working, no google search worked, not asking someone, even ai couldn't help. So, there's still a alot of debugging coming ahead but at least one of the devices worked.

1. OLED:

My last output device i tried but first to document was the OLED, I had my PCB designed and fabricated previously in Week 8 but I didn't test the I2C pins so I wanted to make sure the oled worked fine on the Planty PCB. I used the code I made earlier in Week 4 to make the test and it worked well.

I also used the example code for this OLED to test its limits and know what I can do with it.

This was the happy part of the story but the first time I wired the OLED it didn't work, even the backlight didn't work like there were no power or the OLED broke. I made sure all my wiring are connected correctly. Then I went to the multimeter, turned to measure the volt and measured the volt coming out from the microcontroller and it was around 3.3v then I measured the volt on the pin headers and the volt was the same. At last I measured it on the OLED itself and the multimeter showed 2.6v, so I thought there was something wrong with the jumper wires I'm using. I changed the wires with new ones and yeah, it wooooorked.

3) Original Files: