From the course: Raspberry Pi: GPIO
Join today to access over 24,400 courses taught by industry experts.
1-Wire sensors in depth
From the course: Raspberry Pi: GPIO
1-Wire sensors in depth
- [Instructor] In this project, we use the 1-Wire data protocol to work with temperature sensors. This protocol isn't in common use, but you may find it in certain applications. The 1-Wire protocol is an ingenious way to send low-speed data across one wire. All you have to do is provide it with voltage and ground, and then the data can flow across that single additional wire. There are a few other things you'll want to know. Let's break these out and look at the details. I've mentioned that 1-Wire is low-speed. By low-speed, I mean it can gather and transmit data somewhere between 16 and 64 kilobits per second. In comparison, a standard serial port can provide 25 megabits per second, or the equivalent of about 25,000 kilobitsa per second. That might seem unusable, but keep in mind, we're using this with a Raspberry Pi running Raspbian, a Linux operating system. Linux generates frequent interrupts and is generally a bad…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.
