danjperron / BitBangingDS18B20

Method to access the DS18B20 sensor using Rapsberry Pi GPIO

BitBangingDS18B20

Raspberry Pi 5 & Pi4 4 *** update *** works on 64bits using gpiod
You will need to install gpiod
sudo apt-get install gpiod libgpiod-dev libgpiod-doc

• DS18B20Pi5Scan.c     Application to connect multiple DS18B20 on one GPIO. (I need to check if it works on others Pi and on 32 bits)

• DS18B20Pi5V2.c         Application to Connect one DS18B20 per GPIO but read them together.

• configDS18B20Pi5.c   Application to set bit resolution of the DS18B20.

• Python module to be done later.

  to compile

   gcc -o DS18B20Pi5Scan  DS18B20Pi5Scan.c -l gpiod
  

  Still beta with gpiod. Not sure how it will perform with multiple GPIO connected. Still need to check if it works with old Pi.

Other Pi method

Method to access the DS18B20 sensor using Rapsberry Pi GPIO

• configDS18B20.c   Application to set bit resolution of the DS18B20.

• DS18B20Scan.c     Application to connect multiple DS18B20 on one GPIO.

• DS18B20V2.c         Application to Connect one DS18B20 per GPIO but read them together.

  to compile

   gcc -lrt -o configDS18B20 configDS18B20.c
   gcc -lrt -o DS18B20Scan   DS18B20Scan.c
   gcc -lrt -o DS18B20V2  DS18B20V2.c
  

Python Add-on

To install
    sudo apt-get install python-dev
    sudo apt-get install python3-dev
    cd python
    sudo python setup.py install
    sudo python3 setup.py install

Example
DS_Array.py     Read 30 sensors in less than one second using Tkinter

Help inside module
python
help('DS18B20')