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@ -4,6 +4,7 @@ This file contains guides that were used for making the script and other referen
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---
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- [Main doc](https://learn.adafruit.com/dht-humidity-sensing-on-raspberry-pi-with-gdocs-logging/python-setup)
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- [Setting up Pi for CircuitPython Libraries](https://learn.adafruit.com/circuitpython-on-raspberrypi-linux/installing-circuitpython-on-raspberry-pi)
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- [AdaFruit CircuitPython Bundles](https://github.com/adafruit/Adafruit_CircuitPython_Bundle)
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- [AdaFruit CircutPython](https://github.com/adafruit/circuitpython)
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22
LICENSE.txt
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22
LICENSE.txt
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@ -0,0 +1,22 @@
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MIT License
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Copyright (c) [2024] [Kshitij]
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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16
README.md
16
README.md
@ -4,14 +4,18 @@ This project is a uses the AdaFruit libraries for sensing temperature using DHT1
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---
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> [!IMPORTANT]
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> Check the [requirements](https://git.kska.io/notkshitij/DHT11/src/branch/main/REQUIREMENTS.md) first.
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## Main method
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> [!NOTE] This is the main method, using AdaFruit library. For an easier method, checkout [## Alternative method](https://git.kska.io/notkshitij/DHT11#alternative-method)
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> [!NOTE]
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> This is the main method, using AdaFruit library. For an easier method, checkout [## Alternative method](https://git.kska.io/notkshitij/DHT11#alternative-method)
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1. Install some prerequisite packages:
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```shell
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sudo apt update &&\
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sudo apt install git
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sudo apt install git -y
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```
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@ -29,7 +33,7 @@ cd ./DHT11
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4. Run the `setup.sh` script:
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```shell
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./setup.sh
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source setup.sh
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```
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> [!IMPORTANT]
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@ -67,3 +71,9 @@ pip install dht11 setuptools RPi.GPIO
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> After running the code, and completing the execution, run `deactivate` in the terminal to exit the virtual environment.
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---
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### License
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This project is licensed under the terms of the MIT license. Read the license [here](https://git.kska.io/notkshitij/DHT11/src/branch/main/LICENSE).
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---
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8
REQUIREMENTS.md
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8
REQUIREMENTS.md
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@ -0,0 +1,8 @@
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# Requirements
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This file specifies the requirements for this project.
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---
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- Raspberry Pi OS Bullseye or higher
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- Python 3.7 or higher
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0
alt-temp.py
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0
alt-temp.py
Normal file → Executable file
19
blinka-test.py
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19
blinka-test.py
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import board
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import digitalio
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import busio
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print("Hello, blinka!")
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# Try to create a Digital input
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pin = digitalio.DigitalInOut(board.D4)
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print("Digital IO ok!")
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# Try to create an I2C device
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i2c = busio.I2C(board.SCL, board.SDA)
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print("I2C ok!")
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# Try to create an SPI device
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spi = busio.SPI(board.SCLK, board.MOSI, board.MISO)
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print("SPI ok!")
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print("done!")
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155
raspi-blinka.py
155
raspi-blinka.py
@ -1,155 +0,0 @@
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"""
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Adafruit Raspberry Pi Blinka Setup Script
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(C) Adafruit Industries, Creative Commons 3.0 - Attribution Share Alike
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Written by Melissa LeBlanc-Williams for Adafruit Industries
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"""
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import os
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import sys
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try:
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from adafruit_shell import Shell
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except ImportError:
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raise RuntimeError("The library 'adafruit_shell' was not found. To install, try typing: sudo pip3 install adafruit-python-shell")
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shell = Shell()
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shell.group="Blinka"
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default_python = 3
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blinka_minimum_python_version = 3.7
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def default_python_version(numeric=True):
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version = shell.run_command("python -c 'import platform; print(platform.python_version())'", suppress_message=True, return_output=True)
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if numeric:
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try:
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return float(version[0:version.rfind(".")])
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except ValueError:
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return None
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return version
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def get_python3_version(numeric=True):
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version = shell.run_command("python3 -c 'import platform; print(platform.python_version())'", suppress_message=True, return_output=True)
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if numeric:
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return float(version[0:version.rfind(".")])
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return version
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def check_blinka_python_version():
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"""
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Check the Python 3 version for Blinka (which may be a later version than we're running this script with)
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"""
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print("Making sure the required version of Python is installed")
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current = get_python3_version(False)
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current_major, current_minor = current.split(".")[0:2]
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required_major, required_minor = str(blinka_minimum_python_version).split(".")[0:2]
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if int(current_major) >= int(required_major) and int(current_minor) >= int(required_minor):
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return
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shell.bail("Blinka requires a minimum of Python version {} to install, current one is {}. Please update your OS!".format(blinka_minimum_python_version, current))
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def sys_update():
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print("Updating System Packages")
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if not shell.run_command("sudo apt-get update --allow-releaseinfo-change"):
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shell.bail("Apt failed to update indexes!")
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print("Upgrading packages...")
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if not shell.run_command("sudo apt-get -y upgrade"):
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shell.bail("Apt failed to install software!")
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def set_raspiconfig():
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"""
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Enable various Raspberry Pi interfaces
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"""
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print("Enabling I2C")
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shell.run_command("sudo raspi-config nonint do_i2c 0")
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print("Enabling SPI")
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shell.run_command("sudo raspi-config nonint do_spi 0")
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print("Enabling Serial")
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if not shell.run_command("sudo raspi-config nonint do_serial_hw 0", suppress_message=True):
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shell.run_command("sudo raspi-config nonint do_serial 0")
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print("Enabling SSH")
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shell.run_command("sudo raspi-config nonint do_ssh 0")
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print("Enabling Camera")
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shell.run_command("sudo raspi-config nonint do_camera 0")
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print("Disable raspi-config at Boot")
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shell.run_command("sudo raspi-config nonint disable_raspi_config_at_boot 0")
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def update_python():
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print("Making sure Python 3 is the default")
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if default_python < 3:
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shell.run_command("sudo apt-get install -y python3 git python3-pip")
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shell.run_command("sudo update-alternatives --install /usr/bin/python python $(which python2) 1")
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shell.run_command("sudo update-alternatives --install /usr/bin/python python $(which python3) 2")
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shell.run_command("sudo update-alternatives --skip-auto --config python")
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def update_pip():
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print("Making sure PIP and setuptools is installed")
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shell.run_command("sudo apt-get install --upgrade -y python3-pip python3-setuptools")
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def install_blinka(user=False):
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print("Installing latest version of Blinka locally")
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shell.run_command("sudo apt-get install -y i2c-tools libgpiod-dev python3-libgpiod")
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pip_command = "pip3 install --upgrade"
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username = None
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if user:
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username = os.environ["SUDO_USER"]
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shell.run_command(f"{pip_command} RPi.GPIO", run_as_user=username)
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shell.run_command(f"{pip_command} adafruit-blinka", run_as_user=username)
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# Custom function to run additional commands for Pi 5
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def check_and_install_for_pi5(pi_model):
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if pi_model.startswith("RASPBERRY_PI_5"):
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print("Detected Raspberry Pi 5, applying additional fixes...")
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os.system("sudo apt remove python3-rpi.gpio")
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os.system("pip3 install rpi-lgpio")
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else:
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print(f"Detected {pi_model}, no additional fixes needed.")
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def main():
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global default_python
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shell.clear()
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# Check Raspberry Pi and Bail
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pi_model = shell.get_board_model()
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print("""This script configures your
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Raspberry Pi and installs Blinka
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""")
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print("{} detected.\n".format(pi_model))
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if not shell.is_raspberry_pi():
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shell.bail("Non-Raspberry Pi board detected. This must be run on a Raspberry Pi")
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os_identifier = shell.get_os()
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if os_identifier != "Raspbian":
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shell.bail("Sorry, the OS detected was {}. This script currently only runs on Raspberry Pi OS.".format(os_identifier))
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if not shell.is_python3():
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shell.bail("You must be running Python 3. Older versions have now been deprecated.")
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shell.check_kernel_update_reboot_required()
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python_version = default_python_version()
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if not python_version:
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shell.warn("WARNING No Default System python tied to the `python` command. It will be set to Version 3.")
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default_python = 0
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if not shell.prompt("Continue?"):
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shell.exit()
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elif int(default_python_version()) < 3:
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shell.warn("WARNING Default System python version is {}. It will be updated to Version 3.".format(default_python_version(False)))
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default_python = 2
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if not shell.prompt("Continue?"):
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shell.exit()
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sys_update()
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check_blinka_python_version()
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set_raspiconfig()
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update_python()
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update_pip()
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install_blinka(True)
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# Check and install for Pi 5 if detected
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check_and_install_for_pi5(pi_model)
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# Done
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print("""DONE.
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Settings take effect on next boot.
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""")
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shell.prompt_reboot()
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# Main function
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if __name__ == "__main__":
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shell.require_root()
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main()
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23
setup.sh
23
setup.sh
@ -64,6 +64,7 @@ PROJECT_DIR="/home/$USER/Desktop/temp-sensor"
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if [ ! -d "$PROJECT_DIR" ]; then
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echo -e "$line\nCreating 'temp-sensor' in Desktop directory for current user.\n$line\n"
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mkdir -p "$PROJECT_DIR"
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cp "./temp-calc.py" "./blinka-test.py" "$PROJECT_DIR/"
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echo -e "$line\nCreated '$PROJECT_DIR' directory.\n$line\n"
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else
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echo -e "$line\n$PROJECT_DIR already exists. Please delete the folder before running this script.\n$line\n\nExiting..."
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@ -71,18 +72,26 @@ else
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fi
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# Create and activate Python virtual environment
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cd "$PROJECT_DIR"
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cd "$PROJECT_DIR/"
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chmod 775 ./temp-calc.py ./blinka-test.py
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python3 -m venv . --system-site-packages
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echo -e "$line\nVirtual environment created.\n$line\n"
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echo -e "$line\nActivating virtual environment...\n$line\n"
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source bin/activate
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source $PROJECT_DIR/bin/activate
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echo -e "$line\nInstalling dependencies...\n$line\n"
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pip3 install --upgrade setuptools click adafruit-python-shell adafruit-circuitpython-dht
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pip3 install --upgrade setuptools click adafruit-python-shell adafruit-circuitpython-dht RPi.GPIO adafruit-blinka board
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echo -e "$line\nSetting up raspi-blinka...\n$line\n"
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python3 raspi-blinka.py
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echo -e "$line\nSetting up raspiberry pi...\n$line\n"
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sudo raspi-config nonint do_i2c 0
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sudo raspi-config nonint do_spi 0
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sudo raspi-config nonint do_serial_hw 0
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sudo raspi-config nonint do_ssh 0
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sudo raspi-config nonint do_camera 0
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sudo raspi-config nonint disable_raspi_config_at_boot 0
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sudo apt install -y i2c-tools libgpiod-dev python3-libgpiod
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echo -e "\n\n\n$line$line$line\nSetup completed.\nExecute the command 'python3 temp-calc.py' to calculate\nthe temperature.\n# DESIGNED AND ENGINEERED BY KSHITIJ.\n# END OF SCRIPT\n$line$line$line\n\n\n"
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python3 blinka-test.py
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echo -e "$line\nBlinka works!\n$line\n"
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exit 1
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echo -e "\n\n\n$line$line$line\nSetup completed.\nExecute the command 'python3 temp-calc.py' to calculate the temperature.\n# DESIGNED AND ENGINEERED BY KSHITIJ.\n# END OF SCRIPT\n$line$line$line\n\n\n"
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35
temp-calc.py
Executable file
35
temp-calc.py
Executable file
@ -0,0 +1,35 @@
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import time
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import board
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import adafruit_dht
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# Initial the dht device, with data pin connected to:
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dhtDevice = adafruit_dht.DHT11(board.D16) # by default I'm using GPIO PIN 16 for data/signal transmission of DHT11
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# you can pass DHT22 use_pulseio=False if you wouldn't like to use pulseio.
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# This may be necessary on a Linux single board computer like the Raspberry Pi,
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# but it will not work in CircuitPython.
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# dhtDevice = adafruit_dht.DHT22(board.D18, use_pulseio=False)
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while True:
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try:
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# Print the values to the serial port
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temperature_c = dhtDevice.temperature # Celsius
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temperature_f = temperature_c * (9 / 5) + 32 # Fahrenheit
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humidity = dhtDevice.humidity
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print(
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"Temp: {:.1f} F / {:.1f} C Humidity: {}% ".format(
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temperature_f, temperature_c, humidity
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)
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)
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except RuntimeError as error:
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# Errors happen fairly often, DHT's are hard to read, just keep going
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print(error.args[0])
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time.sleep(2.0)
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continue
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except Exception as error:
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dhtDevice.exit()
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raise error
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time.sleep(2.0)
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|
Loading…
Reference in New Issue
Block a user