Endothermic Task
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Re: Endothermic Task
Does anyone know how to use a thermistor to activate the next task without a micro-controller like an arduino?
i'll work on my events eventually
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Re: Endothermic Task
Work with the thermodynamics pair on your team.ScottMaurer19 wrote:Try keeping it overnight when travelingSnarknado wrote:Good luck keeping an ice cube all the way from impound.ScottMaurer19 wrote: According to the coaching academy, yes.
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Re: Endothermic Task
As long as we're on the topic of the obstacles of impound, do you need to leave all tools for last minute adjustments inside your box at impound?Alex-RCHS wrote:Work with the thermodynamics pair on your team.ScottMaurer19 wrote:Try keeping it overnight when travelingSnarknado wrote: Good luck keeping an ice cube all the way from impound.
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Re: Endothermic Task
There isn't impound until states but I personally plan to just so the event supervisor can't say that I had to impound my materials and my device. As far as I can tell there is nothing in the rules stating what must be impounded.Snarknado wrote:As long as we're on the topic of the obstacles of impound, do you need to leave all tools for last minute adjustments inside your box at impound?Alex-RCHS wrote:Work with the thermodynamics pair on your team.ScottMaurer19 wrote: Try keeping it overnight when traveling
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Re: Endothermic Task
Hey, do you guys have any tips for sensing the temperature change? We're using a reaction with ammonium chloride, but using a thermistor didn't work well because the water messed it up. We also tried using a bimetallic thermostat, but it didn't switch consistently...any tips?
Just trying my best...
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Re: Endothermic Task
Temperature sensor LM35 or TMP36, heat shrink to water proof. Then setup comparator LM358 with a reference voltage. The output can drive MOSFET or a relay with help of transistor.Ten086 wrote:Hey, do you guys have any tips for sensing the temperature change? We're using a reaction with ammonium chloride, but using a thermistor didn't work well because the water messed it up. We also tried using a bimetallic thermostat, but it didn't switch consistently...any tips?
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Re: Endothermic Task
Or you can try adafruit's pre-potted thermistor - it's got a nice epoxy coating that keeps it dry.jinhusong wrote:Temperature sensor LM35 or TMP36, heat shrink to water proof. Then setup comparator LM358 with a reference voltage. The output can drive MOSFET or a relay with help of transistor.Ten086 wrote:Hey, do you guys have any tips for sensing the temperature change? We're using a reaction with ammonium chloride, but using a thermistor didn't work well because the water messed it up. We also tried using a bimetallic thermostat, but it didn't switch consistently...any tips?
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