Electric Vehicle C

[dragonfruit35]

We are trying to develop a vehicle with a reliable steering system and are struggling with the best way to do it. We don't see a way that you can have a fixed axle (aka, the car always turns in the same circle) and just simply position the vehicle different depending on the given competition distance. So, unless we are wrong, we figure that you would have to have a way to change how the axle is positioned. We were thinking of inputting our distance into our mc and then having a servo which turns the axle the distance that we need it to, but we weren't sure where to begin with the math for something like that. Also, wouldn't this method give two variables, the way that the axle turns and then the way we position the car on the start line?

We actually have a manual adjustable axle that locks in place. This is a simpler and possibly more consistent way to do it, in my opinion.

[dragonfruit35]

So sorry to double post, but I need some advice. Because of the rules, we have to use one battery for both the Arduino and the motor shield. The *slight* problem is that the wires leading to the DC jack for the Arduino burned up when we plugged in the battery. Does anyone have any ideas?

[windu34]

So sorry to double post, but I need some advice. Because of the rules, we have to use one battery for both the Arduino and the motor shield. The *slight* problem is that the wires leading to the DC jack for the Arduino burned up when we plugged in the battery. Does anyone have any ideas?

First off, I'm pretty certain that the Arduino does not need to be powered by the same supply of the motor. Wasn't that the rule from last year that they changed?
Anyhow I power everything from a single battery pack by connecting the Arduino DC jack and the Motor/ESC power input in parallel with each other with respect to the battery without any problem by utilizing a voltage converter between the power source and the Arduino DC jack. I step up the 7.2V to 9V going into the Arduino and current is limited to <2A automatically by the regulator

[dragonfruit35]

So sorry to double post, but I need some advice. Because of the rules, we have to use one battery for both the Arduino and the motor shield. The *slight* problem is that the wires leading to the DC jack for the Arduino burned up when we plugged in the battery. Does anyone have any ideas?

First off, I'm pretty certain that the Arduino does not need to be powered by the same supply of the motor. Wasn't that the rule from last year that they changed?
Anyhow I power everything from a single battery pack by connecting the Arduino DC jack and the Motor/ESC power input in parallel with each other with respect to the battery without any problem by utilizing a voltage converter between the power source and the Arduino DC jack. I step up the 7.2V to 9V going into the Arduino and current is limited to <2A automatically by the regulator

But wouldn't the Arduino technically be part of the propulsion system? If we didn't need to have one battery, that would be good but I interpreted that rule the opposite way.

I will make sure that my motor and Arduino are in parallel though. Thanks!

[windu34]

So sorry to double post, but I need some advice. Because of the rules, we have to use one battery for both the Arduino and the motor shield. The *slight* problem is that the wires leading to the DC jack for the Arduino burned up when we plugged in the battery. Does anyone have any ideas?

First off, I'm pretty certain that the Arduino does not need to be powered by the same supply of the motor. Wasn't that the rule from last year that they changed?
Anyhow I power everything from a single battery pack by connecting the Arduino DC jack and the Motor/ESC power input in parallel with each other with respect to the battery without any problem by utilizing a voltage converter between the power source and the Arduino DC jack. I step up the 7.2V to 9V going into the Arduino and current is limited to <2A automatically by the regulator

But wouldn't the Arduino technically be part of the propulsion system? If we didn't need to have one battery, that would be good but I interpreted that rule the opposite way.

I will make sure that my motor and Arduino are in parallel though. Thanks!

That was how it was phrased last year. Look at 2c and 2d, it is clear that as long as voltage <=9, any number of batteries can be used

[dragonfruit35]

First off, I'm pretty certain that the Arduino does not need to be powered by the same supply of the motor. Wasn't that the rule from last year that they changed?
Anyhow I power everything from a single battery pack by connecting the Arduino DC jack and the Motor/ESC power input in parallel with each other with respect to the battery without any problem by utilizing a voltage converter between the power source and the Arduino DC jack. I step up the 7.2V to 9V going into the Arduino and current is limited to <2A automatically by the regulator

But wouldn't the Arduino technically be part of the propulsion system? If we didn't need to have one battery, that would be good but I interpreted that rule the opposite way.

I will make sure that my motor and Arduino are in parallel though. Thanks!

That was how it was phrased last year. Look at 2c and 2d, it is clear that as long as voltage <=9, any number of batteries can be used

Oh, I see. You meant the part about more than one battery in the propulsion circuit. That is legal, the problem is there wouldn't be enough voltage to power both.

[windu34]

But wouldn't the Arduino technically be part of the propulsion system? If we didn't need to have one battery, that would be good but I interpreted that rule the opposite way.

I will make sure that my motor and Arduino are in parallel though. Thanks!

That was how it was phrased last year. Look at 2c and 2d, it is clear that as long as voltage <=9, any number of batteries can be used

Oh, I see. You meant the part about more than one battery in the propulsion circuit. That is legal, the problem is there wouldn't be enough voltage to power both.

Yes there certainly would. Voltage is the same in a parallel circuit

[jasonwu2153]

Hey guys, I have a question regarding the laser policy in Electric Vehicle C. Online, it states that:

"All devices are required to have a safety label on the device or original packaging, or a manufacturers specification sheet stating the class they fall under. Devices missing the required labels or spec sheets will not be permitted. Tournament officials and/or event supervisors may inspect each device and its proposed usage to determine if it is safe. Their decision is final."

If I am using a 5V laser from amazon, does that mean I just have to bring the data sheet with me to competition, or do I have to physically attach a label to the laser? Thanks!

[Unome]

Hey guys, I have a question regarding the laser policy in Electric Vehicle C. Online, it states that:

"All devices are required to have a safety label on the device or original packaging, or a manufacturers specification sheet stating the class they fall under. Devices missing the required labels or spec sheets will not be permitted. Tournament officials and/or event supervisors may inspect each device and its proposed usage to determine if it is safe. Their decision is final."

If I am using a 5V laser from amazon, does that mean I just have to bring the data sheet with me to competition, or do I have to physically attach a label to the laser? Thanks!

Usually the laser will have a label attached to it by the manufacturer with specs. I would recommend bringing the data sheet as well, just in case.

[jasonwu2153]

Would these lasers be viable for sighting? (https://www.amazon.com/GeeBat-10pcs-Las ... s=5V+laser). I'm not 100% sure because they are not labeled.