In this article i will show you how to monitor the temperature of your raspberry pi. A thermistor is a type of resistor whose resistance is based on temperature. Officially the raspberry pi foundation recommends that the temperature of your raspberry pi device should be below 85 degrees celsius for it to work properly. Few sensors are this easy to set up on the raspberry pi. The following will show you how to build and program the raspberry pi to use a thermistor to take temperature measurements of a room. Theyre the same size as a transistor and use only one wire for the data signal.
But it would start throttling at 82 degrees celsius. Healthypi raspberry pi hat measures ecg body temperature and oxygen saturation crowdfunding bangalore based protoncentral has launched the third version of healthy pi a vital sign monitor using the raspberry pi as its computing and display platform and capable of measuring body temperature oxygen saturation and ecgrespiratory data. But you can also switch several sensors in series because it is based on the 1 wire protocol. From this command you should get a result like we have below with specifying the temperature of your raspberry pi. If your temperature rises above 80c you will see a little thermometer on you. Thats the maximum limit.
There are two different types of thermistors. Negative temperature coefficient ntc and positive temperature coefficient ptc. The pimoroni fan shim is a great solution for reducing the temperature of your pi when it runs hot. The makers even provide software that triggers the fan when the cpu temperature rises above a certain threshold eg. However this is so far only possible on gpio pin 4 pin 7. Raspberry pi is a low end mobile computer.
This subreddit also lists tutorials and guides for the newbies to make the best use of their raspberry pi for learning and understanding about computers and software. The ds18b20 temperature sensor is perfect for projects like weather stations and home automation systems. Theyre also extremely accurate and take measurements quickly. This is a subreddit dedicated to raspberry pi owners listing all available projects that could be done on their raspberry pi. Precise temperature control on the raspberry pi 4. So it doesnt have fans to cool it down like other desktoplaptop cpus.
To retrieve the temperature of your raspberry pi we can utilize the following command. Description of the 1 wire raspberry pi temperature sensor the temperature sensor returns a 9 to 12 bit long value which can be read and converted.