This was a dead unit, so after a quick check to see if repair was viable I took it to bits.
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If you enjoy this channel you can help support it with a dollar for coffee, cookies and gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
thankyou brother. this video helped me alot. my device is working fine now 😀🙏
I took a look at some TI documentation and it says that the sensr has 4 pins: 2 for the thermocouple to measure the temperature delta and 2 for a thermistor to measure the overall temperature of the sensor.
Unfortunately these units powered with 9v battery do drain the battery very fast. If battery isn't taken out when unit is not in use then will not last long. Probably the step-down converter is not very efficient or the the power button design is probably not good/ well placed.
I think that's an MLX90614 IR sensor.
OK, I had an assumption about how these things work, and I was wrong. As we know, hot things glow. While the glow is not a single wavelength of light but rather a mix of many wavelengths, the distribution of these wavelengths is just a function of temperature. So the overall combined color of the glow can tell you the temperature of the thing. We can't see light that has a longer wavelength than red light, but it is there. Things that are not hot enough to visibly glow are, in fact, still glowing with invisible light, subject to the same distribution pattern as a red-hot blob of steel or a yellow-hot light bulb filament. The universe is indifferent to our human-made delineation between visible light, infrared light, radio waves, wi-fi, and x-rays. They're all just different colors of light. So I thought infrared thermometers just detected the overall "hue" of infrared light coming off of an object to determine its temperature.
While I was wrong about how IR thermometers work, I think my assumed method does explain how infrared cameras work. I had assumed IR thermometers were essentially infrared cameras with a very low resolution of 1×1.
What temperature sensor are they using?
Great video but I am confused. The device states 380 degrees C max but when I look up the TPS334 it states max operating temperature of 100 degrees C. I must be missing something, can anybody please help?
is it waterproof??
I love how he pretends to be surprised at how easy it comes apart, "Does that come off? Ooh, yes it does.", acting as if he didn't rehearse anything before pressing record.
For me the trigger switch is the first suspect
Could you tell more about the display module? What is part number and any datasheet?
Hi is it possible to put a promitxy sensor on it and make it completely touchles
Is that thermal sensor LM35?