Q: I cannot launch Linkbot Labs from C-STEM Studio in Raspberry Pi.
A: In the current version of Linkbot Labs for Raspberry Pi, you will need to connect to the internet in order to launch Linkbot Labs.
Q: In C-STEM Studio, when I click “Web-Based Computing”, it display that “This site can’t be reached, 127.0.0.1 refused to connect”. How can I fix this?
A: By default, the Apache web server in C-STEMbian is not started. You can start, stop, reload and restart it by the commands below.
- start it with: sudo /etc/init.d/apache2 start
- stop it: sudo /etc/init.d/apache2 stop
- reload the config with: sudo /etc/init.d/apache2 reload
- restart (stop followed by start): sudo /etc/init.d/apache2 restart
Q: If I do not use Linkbot lab, how can I disable the service for Linkbot lab to save CPU time?
A: baromeshd is an auto-start service during start-up. You can use the command ‘sudo systemctl stop baromeshd.service’ to temporary stop it and the command ‘sudo systemctl disable baromeshd.service’ to permanently stop it from auto starting.
Q: Linkbot Labs is open but it says I am in Offline Mode even though I am connected to the internet.
A: You may need to restart the baromeshd service. You can use the command ‘sudo service baromeshd start’
Q: When I run a program in ChIDE I get the error message “Unable to open I2C device: No such file or directory”
A: You need to enable automatic loading of the I2C kernel module by following the below steps
- Open the Applications Menu
- Click “Preferences”
- Click “Raspberry Pi Configuration”
- Click “Interfaces”
- Enable I2C