Raspberry Pi
Some of my Raspberries
- Raspeberry 1 (or perhaps 1B) with a camera module on a wood stick. 26 pins. UART.
Simple things used in every Project
Raspistill
raspistill -w 2592 -h 1944 -o name.jpg
Take a photo and send it to an external server Template:GithubDownload
<script src="https://emgithub.com/embed.js?target=https%3A%2F%2Fgithub.com%2Fpytorch%2Fpytorch%2Fblob%2Fmaster%2Ftorch%2Fnn%2Fcpp.py&style=github&showBorder=on&showLineNumbers=on&showFileMeta=on"></script>
Crontab
Sshpass
Server side
Finding the IP address
The SSH is disable by default after 2016. Below is show how to enable without using keyboard.
Use nmap -F 192.168.8.1-254 to fast scan all devices in the local network. The default passwords are listed at Raspberry pi default login-password.
Try ping raspberrypi.local.
Enable ssh
On another computer, mount the Raspian boot SD card, navigate to the boot folder cd /Volumes/boot, create a blank file called ssh touch ssh. That's all.
Using the Raspian GUI: Preferences -> Raspberry Pi Configuration -> Interfaces -> SSH.
Using the terminal: sudo raspi-config or use systemctl:
sudo systemctl enable ssh
sudo systemctl start ssh
Project Ideas
- Bluetooth LE & Polar Heart Beat Monitor
- Camera piano
- Controlling CD Drive motor
- Info TV/ Dashboad
- Microscope and photo stacking
- Online thermometer with local backup
- Solar powered on/off line timelapse photography
- Sound spectrum
- Weather station --- Raspberry Pi
- Connect the APC220 radio module and submit the data to Internet
Peripherals
- Analog sensors https://www.rototron.info/raspberry-pi-analog-water-sensor-tutorial/
- Camera
- Dissolved oxygen meter https://www.instructables.com/Plotly-Atlas-Scientific-Graph-Real-Time-Dissolved-/ https://elexhub.com/product/gravity-analog-dissolved-oxygen-sensor-meter-kit/ https://how2electronics.com/dissolved-oxygen-sensor-arduino-interfacing-tutorial/ https://atlas-scientific.com/circuits/ezo-dissolved-oxygen-circuit/# https://atlas-scientific.com/probes/dissolved-oxygen-probe/
- Laptop Keyboard: https://raspberrypi.stackexchange.com/questions/5007/using-an-old-laptop-keyboard-with-raspberry-pi https://www.youtube.com/watch?v=AKWheG8wKxM
- Temperature, pH
Sensors
- MG-811 MG811 CO2 Carbon Dioxide Sensor For Arduino UNO R3 Raspberry Pi
- CCS811 CO2 Carbon Dioxide Detector Air Quality Monitor Meter Sensor for Arduino
- MQ-2 Kohlenmonoxid Sensor CO Gas-Sensor, Rauch-Sensor, Raspberry Pi, Arduino
- CJMCU MICS 6814 Kohlenmonoxid Stickstoff Sauerstoff Sensor Co No2 Nh3 Arduino
- MH-Z19 IR infrared Carbon Dioxide Gas Sensor For Air CO2 Concentration Monitor
- Environment Sensor HAT für Raspberry Pi Zero 2 W WH A 3 Model B Plus 4 2GB 8GB
- CD30 Air Quality Sensors Module for CO2 and RH/T Measurements I2C PWM Modbus
Erase the SD card
Use camera to format the SD card, or see https://www.raspberrypi.org/forums/viewtopic.php?t=204167 .
Bluetooth on Raspi 3
sudo apt update
sudo apt upgrade
sudo apt-get install python-bluez
#sudo apt install bluetooth pi-bluetooth bluez bluemansudo nano /etc/systemd/system/dbus-org.bluez.service. Modify ExecStart=/usr/lib/bluetooth/bluetoothd –C
sudo sdptool add SP
sudo reboot
sudo apt-get install bluetooth bluez libbluetooth-dev
sudo python3 -m pip install pybluez
