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. 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.
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![alt text](IMG_9351.JPEG) ![alt text](IMG_9351.jpg)
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![alt text](IMG_9355.jpg) ![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. 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 ## 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. 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). 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 ## Sources
* https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-resistor-circuits/a/ee-voltage-divider * https://www.khanacademy.org/science/electrical-engineering/ee-circuit-analysis-topic/ee-resistor-circuits/a/ee-voltage-divider