Using a BJT as a temperature sensor скачать в хорошем качестве

Using a BJT as a temperature sensor

At the heckling of my friend Charles, I have posted this video on how to use a diode or BJT as a temperature sensor. The project is an Arduino-based thermometer using a NeoPixel shield. Basically, Charles was giving me heck over using a BJT, that it was "horribly non-linear," there are other devices (esp SPI/I2C) available, and oh, BTW, the BJT is power hungry. I countered by telling him that it's actually fairly linear over the temperature range I care about, it cost me nothing since I have about 50 of them laying around, and a half of a milliamp ain't that bad for something plugged into a USB port... And power considerations are kind of pedantic, anyway, when I'm driving a bunch of freaking LEDs! So, he asked me to post a video - not just on what I'm doing, but also the "how" Here ya go - the video includes a high-level overview of the math behind the BJT temp sensor, a couple of LTSPICE simulations, and a really quick demo of the thing in action. The Arduino code can be found on my web site, here: http://www.burke.tv/Tom/Cookbook/Ardu...