Smikkelbakje/Drone-FabAcademy-2025
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docs about drone control board

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Sam Hos
2025-03-26 11:04:13 +01:00
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docs/Assignments/week_9_input_devices/input_devices.md
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@@ -49,7 +49,7 @@ During debugging I first removed the multiplexer and created a bypass to attempt
Then I still struggled the entire day debugging and then I gave up and went home. In the morning Henk used the rubber ducky method and I found the problem and fixed it like this.
Before
![alt text](IMG_9351.JPEG)
![alt text](IMG_9351.jpg)
After
![alt text](IMG_9355.jpg)
It looks super messy but what I have done is. I broke one trace and created the same configuration as in the correct schematic. I connected the resistors wrongly and that caused all the power to go to ground instead of dividing the voltage to the analog pin and the ground.
@@ -59,9 +59,16 @@ Now that this works I can work on the final design of the board and send it to a
## Voltage divider
This week I learned how voltage dividers worked and I also struggled a lot with them. A voltage divider is better for splitting voltage instead of creating a voltage drop using a single resistor. Because you don't have to know how much current is flowing. Instead you can divide the voltage between 2 lanes.
![alt text](image321.png)
![alt text](image321.jpg)
I found a lot of helpfull explanation on [this website](https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-resistor-circuits/a/ee-voltage-divider).
## The drone control board
This week I've also started testing with the drone motors and electronic speed controllers. I have worked a bit with them in the past but not much. I have made this board so I could test the motors reliably because sending signals over breadboards can be super unreliable.
![alt text](IMG_9369.jpg)
I've also screwed it into a plate otherwise the IMU would give all sorts of random measurements and I needed exact measurements.
## Sources
* https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-resistor-circuits/a/ee-voltage-divider