IoT setup on a Raspberry PI 3 with Adafruit Sensors (Ultimate GPS Breakout v3 + BMP280/BME280). [ESILV PROJECT]
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.
For this project you will need :
- A raspberry PI 3 B (or B+).
- Adafruit Sensor : BMP280 or BME280. Thoses are for Temp, Pressure and Humidity.
- Adafruit Sensor : Ultimate GPS Breakout V3.
Thoses dependencies are going to be usefull on your raspberry (Assuming you have Raspbian installed on it):
Raspbian-Config
Camera: Enabled
SSH: Enabled
VNC: Disabled
SPI: Enabled
I2C: Enabled
Serial: Enabled
1-Wire: Disabled
Remote GPIO: Enabled
Either you get BMP or BME sensor the connections are the same:
BMP280---------Raspberry Pi
VIN------------Pin 1 (3.3V) (red wire)
Ground---------Pin 6 (black wire)
SCK------------Pin 5 (SCL1) (white wire)
SDI------------Pin 3 (SDA1) (cyan wire)
Test the sensor, you should see 77 on row 7, lines 70:
sudo i2cdetect -y 1
Either you can use BMP280 or BME280, we are going to use libraries for BME280. This sensor got temp, pressure and humidity meanwhile BMP280 only got temp and pressure. Humidity will remain at 0 if you use this one.
Assuming you got python dependencies, load thoses libraries
For Debian based Linux:
sudo apt-get update
sudo apt-get install build-essential python-pip python-dev python-smbus git
git clone https://github.com/adafruit/Adafruit_Python_GPIO.git
cd Adafruit_Python_GPIO
sudo python setup.py install
For MacOs (assuming you got pip installed)
git clone https://github.com/adafruit/Adafruit_Python_GPIO.git
cd Adafruit_Python_GPIO
sudo python setup.py install
For Windows (assuming you got pip installed
git clone https://github.com/adafruit/Adafruit_Python_GPIO.git
cd Adafruit_Python_GPIO
python setup.py install
Once it's done, move forward to the folder that was just created :
sudo python setup.py install
git clone https://github.com/adafruit/Adafruit_Python_BME280.git
Everything is loaded now, you can test the script BME280.py :
python ./Scripts/BME280.py
"We designed the Ultimate GPS with a built-in regulator, so even if it's powered with 5V, the signal levels are still 3.3V - safe for your Pi!", Adafruit
You should use 3.3V pins instead of 5V in order to keep your Pi safe.
Connect your gps following thoses instructions:
GPS Vin-----------3.3V (red wire)
GPS Ground--------Ground (black wire)
GPS RX------------TX (orange wire)
GPS TX------------RX (green wire)
Install gpsd
sudo apt-get install gpsd gpsd-clients
We need to disable gpsd and restart it linked on the serial port (uart)
sudo killall gpsd
sudo gpsd /dev/serial0 -F /var/run/gpsd.sock
And you can test it:
python3 ./Scripts/gpstest.py
Now if you want to send your data into a mysql database follow thoses instructions:
- Mysql-server and Python-mysqldb installed
Go in the mysql shell
mysql -u root -p
Enter password:
mysql>
Make a database called sensor and then use it
CREATE DATABASE sensor;
USE sensor;
In this database we will create a tablle called bmesensor. We will there send all data collected from both BME280 sensor and GPS sensor.
CREATE TABLE bmesensor(datetime VARCHAR(25) NOT NULL, temperature FLOAT (6,3) NOT NULL, pressure FLOAT (8,3) NOT NULL, humidity FLOAT (6,3) NOT NULL, latitude FLOAT (6,3) NOT NULL, lontitude FLOAT (6,3) NOT NULL, altitude FLOAT (6,3) NOT NULL);
To leave Mysql Shell hit Ctrl+Z
That make us moving to our last script : sensor.py. Pay attention to the connect section to Mysql:
You need to change the actual username and password by yours.
Once it's done you are now ready to use the sensor.py script:
./Scripts/sensor.py
You can then go back in your MysqlShell to check the data.
mysql -u root -p
Enter password:
mysql>
USE sensor;
SELECT * FROM bmesensor;
This project was made for a BLOCKCHAIN + IOT project from this team :
- Matthieu LANVERT
- Dean CHERIF
- Alexandre LEVRET
- Lucile JEANNERET