Diltech RM Consultant / Mbed OS Double_I2C_Sample

Sample code with BluePill STM32F103C8 and Oled SSD1306 and LCD1602 on same connect on DS18B20.

Dependencies:   TextLCD

ds18b20-single/README.md@0:47b4bbc994df, 2022-05-29 (annotated)

Committer:
diltech
Date:
Sun May 29 16:30:05 2022 -0400
Revision:
0:47b4bbc994df
Projet en cours

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diltech 0:47b4bbc994df 1 # DS18B20-single
diltech 0:47b4bbc994df 2
diltech 0:47b4bbc994df 3 An easy to use library to read one single DS18B20 sensor on a 1-wire bus in mbed-os.
diltech 0:47b4bbc994df 4
diltech 0:47b4bbc994df 5 ## Usage
diltech 0:47b4bbc994df 6
diltech 0:47b4bbc994df 7 1. include Library
diltech 0:47b4bbc994df 8 ```
diltech 0:47b4bbc994df 9 #include "DS18B20.h"
diltech 0:47b4bbc994df 10 ```
diltech 0:47b4bbc994df 11
diltech 0:47b4bbc994df 12 2. Open instance of sensor and pass the PinName to the constructor
diltech 0:47b4bbc994df 13 ```
diltech 0:47b4bbc994df 14 DS18B20 sensor(PinName) //Substitude PinName for the pin to witch the Sensor is connected
diltech 0:47b4bbc994df 15 ```
diltech 0:47b4bbc994df 16
diltech 0:47b4bbc994df 17 3. Read temperature by by using readTemp()
diltech 0:47b4bbc994df 18 ```
diltech 0:47b4bbc994df 19 float temperature = sensor.readTemp();
diltech 0:47b4bbc994df 20 ```
diltech 0:47b4bbc994df 21 Please note that taking a measurement will take over 750ms
diltech 0:47b4bbc994df 22
diltech 0:47b4bbc994df 23 ## Example
diltech 0:47b4bbc994df 24 ### Nucleo L432KC with sensor on pin A0 (mbed-os 5)
diltech 0:47b4bbc994df 25 ```
diltech 0:47b4bbc994df 26 #include "mbed.h"
diltech 0:47b4bbc994df 27 #include "DS18B20.h" //include the library
diltech 0:47b4bbc994df 28
diltech 0:47b4bbc994df 29 DS18B20 sensor(A0); //Create an instance of DS18B20, name it sensor, set A0 as pin
diltech 0:47b4bbc994df 30
diltech 0:47b4bbc994df 31 int main()
diltech 0:47b4bbc994df 32 {
diltech 0:47b4bbc994df 33 while(1)
diltech 0:47b4bbc994df 34 {
diltech 0:47b4bbc994df 35 printf("Temp: %6.1f C\n", tempsense.readTemp()); //read the temperature and output it to the default debug serial interface.
diltech 0:47b4bbc994df 36 ThisThread::sleep_for(1000); //wait 1s before measuring again
diltech 0:47b4bbc994df 37 }
diltech 0:47b4bbc994df 38 }
diltech 0:47b4bbc994df 39 ```
diltech 0:47b4bbc994df 40
diltech 0:47b4bbc994df 41 ### Nucleo L432KC with sensor on pin A0 (mbed-os 6)
diltech 0:47b4bbc994df 42 1. main.cpp
diltech 0:47b4bbc994df 43 ```
diltech 0:47b4bbc994df 44 #include "mbed.h"
diltech 0:47b4bbc994df 45 #include "DS18B20.h" //include the library
diltech 0:47b4bbc994df 46
diltech 0:47b4bbc994df 47 DS18B20 sensor(A0); //Create an instance of DS18B20, name it sensor, set A0 as pin
diltech 0:47b4bbc994df 48
diltech 0:47b4bbc994df 49 int main()
diltech 0:47b4bbc994df 50 {
diltech 0:47b4bbc994df 51 while(1)
diltech 0:47b4bbc994df 52 {
diltech 0:47b4bbc994df 53 printf("Temp: %6.1f C\n", tempsense.readTemp()); //read the temperature and output it to the default debug serial interface.
diltech 0:47b4bbc994df 54 ThisThread::sleep_for(1s); //wait 1s before measuring again
diltech 0:47b4bbc994df 55 }
diltech 0:47b4bbc994df 56 }
diltech 0:47b4bbc994df 57 ```
diltech 0:47b4bbc994df 58
diltech 0:47b4bbc994df 59 2. Printing floats in mbed-os 6 is disabled by default to save space. If you have a mbed_app.json file in your project root directory, add
diltech 0:47b4bbc994df 60 ```
diltech 0:47b4bbc994df 61 "target_overrides": {
diltech 0:47b4bbc994df 62 "*": {
diltech 0:47b4bbc994df 63 "target.printf_lib": "std"
diltech 0:47b4bbc994df 64 }
diltech 0:47b4bbc994df 65 }
diltech 0:47b4bbc994df 66 ```
diltech 0:47b4bbc994df 67 to this file. Otherwise, create mbed_app.json in the projects root directory and paste the following code into it:
diltech 0:47b4bbc994df 68 ```
diltech 0:47b4bbc994df 69 {
diltech 0:47b4bbc994df 70 "target_overrides": {
diltech 0:47b4bbc994df 71 "*": {
diltech 0:47b4bbc994df 72 "target.printf_lib": "std"
diltech 0:47b4bbc994df 73 }
diltech 0:47b4bbc994df 74 }
diltech 0:47b4bbc994df 75 }
diltech 0:47b4bbc994df 76 ```
diltech 0:47b4bbc994df 77
diltech 0:47b4bbc994df 78 ## Installation
diltech 0:47b4bbc994df 79
diltech 0:47b4bbc994df 80 ### MBED online compiler
diltech 0:47b4bbc994df 81 1. Right-Click your project.
diltech 0:47b4bbc994df 82 2. select Import "Library" > "From URL".
diltech 0:47b4bbc994df 83 3. Type
diltech 0:47b4bbc994df 84 ```
diltech 0:47b4bbc994df 85 https://github.com/LukasGessner/DS18B20-single
diltech 0:47b4bbc994df 86 ```
diltech 0:47b4bbc994df 87 as URL.
diltech 0:47b4bbc994df 88
diltech 0:47b4bbc994df 89 ### MBED Studio
diltech 0:47b4bbc994df 90 1. Make shure your target program is selected under "Active program".
diltech 0:47b4bbc994df 91 2. On the bottom of the screen, select the "Library" tab.
diltech 0:47b4bbc994df 92 3. Click the "+" icon.
diltech 0:47b4bbc994df 93 4. Enter
diltech 0:47b4bbc994df 94 ```
diltech 0:47b4bbc994df 95 https://github.com/LukasGessner/DS18B20-single
diltech 0:47b4bbc994df 96 ```
diltech 0:47b4bbc994df 97 as the URL.
diltech 0:47b4bbc994df 98
diltech 0:47b4bbc994df 99
diltech 0:47b4bbc994df 100 ### MBED CLI
diltech 0:47b4bbc994df 101 1. Open the command prompt in the project folder.
diltech 0:47b4bbc994df 102 2. Type
diltech 0:47b4bbc994df 103 ```
diltech 0:47b4bbc994df 104 mbed add https://github.com/LukasGessner/DS18B20-single
diltech 0:47b4bbc994df 105 ```
diltech 0:47b4bbc994df 106 into the command prompt.
diltech 0:47b4bbc994df 107