12/4/2023 0 Comments Arduino thermometerMN Maker //Laser Temp Gun //10.6.Similar to estimating the distance of a thunderstorm by counting the time between a lightning flash and the thunder that follows it, the temperature of the air can be estimated by counting the number of chirps produced by a cricket in one minute and doing a simple calculation. ![]() It might just be an issue of my printer and I am sure it is possible to get it looking great if you dial in your printer settings but I didn't really care to much as this is a tool. The angle for the OLED screen is fairly high so I printed with supports on the build plate but that makes the surface look less than perfect. Printing this is kind of tricky to get it to look great, as the main base I printed with the oled screen side faced down. Nevertheless, eventually I got everything wired up and in the enclosure, so then I press fit the top cover on. ![]() I always put my arduino nano on standoffs just in case I want to reuse it for a project later down the line, so the standoffs took up alot of extra room that wouldn't be needed if you permanently soldered it on a perf board. Alot of wires were pulling lose when I pushed the arduino nano into the small space so I ended up using a glue gun to hold the wires in place while pushing the nano inside the enclosure. The top section is for the arduino nano and I will be honest, I really underestimated the amount of wiring I needed to connect up in the small amount of space. Both the laser and sensor can be press fit into the hole. 96 inch OLED display and a front section on the tip of the thermometer for your laser and your MLX90614 sensor. There is a hole to route the wiring for the base components into the top section of the thermometer. In the base of the thermometer, there is room for a 9V battery, On/Off switch, and our trigger mechanism which is just a simple momentary push button. Please consider subscribing to my YouTube channel to support me and to see more fun projects. This project is just for fun and if you need an infrared thermometer for medical use, order one that meets medical standards/testing. It is a simple project and could be used as a great introduction into sensors, 3D design/printing, electronics, and programming.ĭisclaimer: Obviously not suitable for medical use. It has a custom 3D printed enclosure so anyone can print it and assemble right at home. I wanted to know the temperature of the component but since I do not own a infrared thermometer I decided to build my own. I was working on a circuit the other day and I had a component that was getting extremely hot. As more IR energy is absorbed, the hotter it gets and the heat level is converted into an electrical signal which is eventually converted to a temperature reading. Most handheld thermometers use a lens to focus light from one object onto a thermopile which absorbs the IR radiation. All objects emit energy in the form of infrared radiation. We cannot see it but if you were to place your hand near a something hot like a stove top, then you would be feeling the effects of infrared radiation. Infrared radiation is just another type of radiation that exists on the electromagnetic spectrum. ![]() ![]() A quick non-contact check with an infrared thermometer can let you know what is happening with the temperature of a machine so you can shut if off before it causes permanent damage. Often times in a machine or electronic circuit, rising temperatures are one of the first signs that something is wrong. Infrared thermometers are widely used in many work environments to determine an objects surface temperature.
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