These instructions explain how to set up Ohbot so that it can be programmed using Python on a Raspberry Pi. They are aimed at anyone that is new to Raspberry Pi and starting with a Pi 3B that has been supplied with a NOOBS SD card. For details on how to create a NOOBs SD card click here. Experienced Pi users may prefer to use the instructions available on GitHub here.
You will need:
You will need:
- Ohbot 2.1 and dual USB cable (supplied)
- A Raspberry Pi Model 3B
- A power supply for the Raspberry Pi
- An monitor that accepts an HDMI input and HDMI cable
- NOOBS SD card
- A 5volt 1amp USB power supply (for Ohbot)
- USB mouse and keyboard
- an amplified speaker with a 3.5mm audio plug connection or you can use HDMI sound on your monitor if you have it
Step 1: Connect up
picture showing connections
picture showing connections
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Step 2: Install the Raspian operating system on the Pi
Click on the tick box to select Raspian (Recommended) option and click Install Click on 'Yes' to confirm that all existing data on the SD card will be overwritten Wait whilst the operating system installs. When it reports successful installation Click OK |
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Step 3: Connect to the web
If you have access to a wireless network click on the wifi network icon and enter the password to connect to the network Otherwise you will need to ensure your Pi has access to the web before continuing. |
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Step 4: Install the Ohbot software libraries
Click on Terminal At the command prompt in Terminal Type sudo apt-get install python3-pip press enter and wait until the command prompt returns Type sudo pip3 install ohbot press enter and wait until the command prompt returns Type sudo pip3 install pyserial press enter and wait until the command prompt returns Type sudo apt-get install festival press enter and wait until the command prompt returns Type sudo apt-get install python3-lxml press enter and wait until the command prompt returns |
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Step 5: download Ohbot folder from GitHub
Open a web browser and go to ttps://github.com/ohbot/ohbot-python/archive/1.1.zip Once downloaded right click on the zip file and select Show in Folder Right click on the downloaded file and select Extract all to Select a location to save the folder to |
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Step 6: Run the example program
Open Python 3 (IDLE) from the Programming section on the Applications menu In Python 3 Shell from the File menu click Open Locate the ohbot folder that was unzipped in step 5 Open ohbot-python-1.1 folder > examples > helloworldohbot.py From the Run menu select Run Module Your robot should move and speak |
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Steps 7 on: Writing a program
Open Python 3 (IDLE)
Click File > New File
Save your file as a python script (.py) in a new folder called Ohbot somewhere on your Pi.
Any programs you write will need to import the Ohbot files at the start of your program
from ohbot import ohbot
There is a list of Ohbot functions to use in your programs here.
Open Python 3 (IDLE)
Click File > New File
Save your file as a python script (.py) in a new folder called Ohbot somewhere on your Pi.
Any programs you write will need to import the Ohbot files at the start of your program
from ohbot import ohbot
There is a list of Ohbot functions to use in your programs here.
