Raspberry Pi CPU Logger

Log Raspberry Pi CPU frequency and temperature to ThingSpeak.

Requirements

• Java Runtime Environment 11 (either OpenJDK 11 included in Raspbian Buster or BellSoft Liberica JRE 11 is good)
• ThingSpeak account (available for free)

Download

git clone https://github.com/albertus82/raspberrypi-cpu-logger.git

Configuration

Put the Write API Key associated with your ThingSpeak channel (e.g. 1234567890ABCDEF) into a text file named api.key in the conf directory.

Usage

Launch the program via the shell script start.sh and use CTRL+C to terminate, or install the program as a service.

Example

⚠️ Don't forget to replace WRITE_API_KEY with your actual ThingSpeak Write API Key!

git clone https://github.com/albertus82/raspberrypi-cpu-logger.git
cd raspberrypi-cpu-logger
 echo WRITE_API_KEY > conf/api.key
./start.sh

Install as a service

⚠️ Don't forget to replace WRITE_API_KEY with your actual ThingSpeak Write API Key!

cd /opt
sudo git clone https://github.com/albertus82/raspberrypi-cpu-logger.git
cd raspberrypi-cpu-logger
 echo WRITE_API_KEY | sudo tee conf/api.key
sudo chmod 640 conf/api.key
printf '[Unit]\nDescription=CPU Logger\nAfter=network.target\n\n[Service]\nExecStart=/opt/raspberrypi-cpu-logger/start.sh\nUser=root\nTimeoutStopSec=5min\n\n[Install]\nWantedBy=multi-user.target\n' | sudo tee /etc/systemd/system/raspberrypi-cpu-logger.service
sudo systemctl enable raspberrypi-cpu-logger
sudo service raspberrypi-cpu-logger restart