Challenge Blog

Received Finisher Prize for Experimenting with Thermistors

2022-11-27T13:58:15Z

Hello everyone. About three weeks ago I received prize for my three blogs as part of Experimenting with Thermistors. I was busy so I write about it now. I originally plan to post more blogs as part of competition, but I wrongly estimated time complex...(read more)

Announcing the Winners of 'Experimenting with Thermistors'

2022-10-11T20:53:00Z

The Experimenting with Thermistors Design Challenge, sponsored by Molex and featuring Molex thermistors, has officially wrapped. We had 10 participants with 9 finishers, including the Grand Prize Winner and Runner-up. Our judges have read each blog a...(read more)

Blog #3: Inexpensive Temperature Chamber - Building the Temperature Chamber

2022-09-20T22:23:31Z

Peltier or Resistor? To change the temperature of the chamber I evaluated 2 alternatives: a Peltier module and resistor. Peltier modules are more versatile as they are heat pumps that can either heat or cool depending on the current direction. On th...(read more)

Thermistors for Thermostats - Bonus Blog Post

2022-09-19T23:20:00Z

One of the backburner thoughts through this challenge was whether or not I could use a thermistor in a simple circuit to control my humming bird feeder heater.So I did a little bit of extra experimenting... Spoiler alert: it's not that simple. Here w...(read more)

Blog 3: Temperature following robot

2022-09-19T19:36:00Z

This is the third project in my experimenting with thermistors blog. An interesting technology based on heat sensing is the heat seeking missile. This is where I got an idea of making a heat following robot. We have seen line following robots. They a...(read more)

Blog #2: Inexpensive Temperature Chamber - Thermistor selection and temperature reading

2022-09-19T17:25:24Z

Thermistor selection As part of the design challenge I received 10 different thermistors: 213860-1637 NTC Ring Thermistor, 10 kΩ, 1% Tolerance213860-2637 NTC Ring Thermistor, 10 kΩ, 2% Tolerance213862-2637 NTC Ring Thermistor,&n...(read more)

Blog 2: Analog auto-cutoff circuit using thermistor

2022-09-19T14:59:00Z

I proposed three experiments with thermistors in my first blog, this is the first one. Using a thermistor as a thermal switch for auto-cutoff/thermal protection of electrical appliances. This can help check for overheating of electrical appliances su...(read more)

Thermistor Thermometer - blog 2

2022-09-19T04:59:00Z

Intro This has been an interesting challenge, but very rough. I got ill and have not been able to bounce back.. However the challenge requires 2 blogs, so I will attempt to publish what I have accomplished so far in this second blog. The 2 applicatio...(read more)

Experiments on the propagation of heat #2

2022-09-18T21:52:45Z

Experiments on the propagation of heat #2 Introduction Hi, I'm Carlo Russo. In this second blog, we're going to do a simple heat transfer experiment using thermistors as sensors.The experiments in this blog will be based on Fourier&#39...(read more)

Where's the Heat? Blog #2

2022-09-17T23:23:00Z

First off, this Design Challenge has been a blast. I actually had to dust out the mental cobwebs and derive some equations because I hooked up my circuits differently than those on the internet examples. I truly feel less foggy-brained.&n...(read more)

Blog #13: Characterising Thermistors – Pulling Out, Overload, Response Time, Building a Flow Meter & Final Conclusion

2022-09-17T01:26:00Z

With the Experimenting with Thermistors Design Challenge drawing to a close in just a few days, here comes my final blog post. In this post, I continue testing thermistors in a more destructive fashion, attempt to resolve the question of thermistor r...(read more)

Blog #3 - Profiling the heat distribution in a room - Results

2022-09-16T21:54:00Z

Finally, I have got some results! Before we delve into the room heating results, I would like to note a few observations: Ring thermistors do not seem to be appropriate for measuring air temperature (this might be obvious to many). Compare thermiste...(read more)

Hummingbird Feeder Monitoring Using Molex Thermistors - Final blog post: Bringing It All Together

2022-09-15T21:38:00Z

This is my final blog post for the Experimenting With Thermistors challenge. After experimenting with thermistors for over a month, it is time to put all of the things I’ve learned into practice: It’s time to add a thermistor to my hummin...(read more)

Blog #2: Profiling the heat distribution in a room - Setup

2022-09-14T00:10:00Z

Let's measure some temperatures using Molex thermistors! But, where shall we begin? A thermistor is basically a resistive element whose electrical resistance changes when it is subjected to heat. So, if we can sense this change in resistance, we can ...(read more)

Choosing The Right Thermistor

2022-09-13T03:07:00Z

For this Experimenting With Thermistors challenge, element14 and Molex provided us with a kit of 10 different thermistors to experiment with. After experimenting and researching for the last few months, I wondered if perhaps not all of them are ...(read more)