Page 126 - TCS ICT Book 8

The City School 2021-2022

5. Click on the Bumble Pi icon on the right bottom corner.

6. For security purposes, your mobile device will ask for permission to give bluetooth
module access to this application. Select the Allow option to give permission.
7. After that, a list of Bluetooth devices will be available to connect, select the

raspberry pi option which will be listed with the physical (MAC) address of the

Bluetooth.
8. Car Controlling screen will appear and the Blue LED on your bumble pi shield will
turn off it means your Bluetooth connection is successful now you can control your

car from your smartphone.

9. If Blue LED doesn’t turn off it means you’re not connected with the Raspberry Pi so
reboot your Raspberry Pi by turning off its switch and then repeat from step 2.

Making a Bootloader

For mobility purposes, we can also make a bootloader which will automatically start
the command whenever the Raspbian OS will boot. By doing this we won’t be needing

the Keyboard, Mouse and LCD to be connected for configuring or executing the

command.
Note: This Step will not exclude the process of pairing the android device.

Follow these steps to make the bootloader:

1. Open terminal and type the command sudo nano /etc/rc.local
2. There will be a lot of text written in that file. Locate the comment stating # write a

path for the code to run here”. And enter this command sudo python /home/pi/
SRC.py & and press ctrl+x

3. The terminal window will ask to save the file, press Y for yes.
4. After that terminal will ask to save this file on the same location where we have to

press Enter key.
5. Unplug the cables and restart the Pi by typing the Reboot keyword within the

terminal window.
6. Wait for the Pi to boot completely and you will notice the blue light is lit and the Pi is

ready to connect with the paired mobile device using the Tech Tree Bumble Pi app.

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