Youtor
Arduino DS18B20DS18S20 Temperature Sensor and 1Wire Bus – The Details
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=XUm9RPWRBx8
Just install some libraries and that’s it. Hold on, there might be more … • ↓↓↓ Complete description, time index and links below ↓↓↓ • For example: How does that parasitic power thing work? Does it always work? What about several devices on the same 1-Wire bus? And what’s the difference between the DB18B20 and DS18S20 temperature sensors? • I’ll try my best to answer all these questions in this video and then some. At the end we’ll have four DS18B20s connected to an Arduino Nano via two 1-wire busses, one with phantom power and one with a dedicated 5V supply line. • Intro … • 00:00 Intro – there shall be two busses with two sensors each • 1-Wire bus basics … • 01:06 Data transmission – pull-up resistor and open collector/drain pull-downs • 02:44 Parasite power – hard pull-up through transistor, timing issues • 05:46 Masters – hardware differences between microcontrollers and -processors • Simple example … • 07:45 Demo – wired up breadboard and Arduino serial monitor • 10:20 Circuit – one bus with parasitic and one bus with direct power, two sensors each • 12:56 Code – 1-Wire and Dallas Temperature library • DS18B20 vs DS18S20 … • 17:50 Overview – same accuracy (almost) but different resolutions • 18:48 Speed – DS18B20 is eight times faster at the same resolution • 20:08 Accuracy – DS18B20 is a wee bit better specified • Second example … • 21:19 Demo – faster with higher resolution, but what sensor is which on the bus? • 24:37 Code – setting resolution and optimized loops • Addressing … • 25:55 1-Wire identification – a 64-bit address, talk about internet of things • 27:55 Demo – seeing the 64-bit addresses of the devices on the breadboard • 28:48 Code – getting addresses and using them to address devices • 31:29 Methods – just some suggestions on how to use addressing in practice • Remarks … • 34:24 Pull-up resistor – smaller values might be required, but there are limits • 38:10 Parasite power – it’s not always working, supported or possible • Wrap-up … • 39:00 Wrap-up – a lot of things went unsaid, so just ask for specifics • Tutorials: • Tutorials • #robertssmorgasbord #tutorials #tutorial #how-to #Arduino #temperature #temperaturesensor #bus #dallas
#############################
