Hands-On ROS for Robotics Programming

Hardware information and current voltage levels

The next block of commands prints information of the manufacturer, hardware and firmware versions, and battery levels. The following relates to the output:

• Battery voltage is the same as before. The measurement gives a slightly different value, 9.294V, and it is OK.
• 5V voltage is that of the power supply to the Raspberry Pi through its GPIO. GoPiGo red board has a power regulator that transforms the 9V raw input to a regulated 5V. If the batteries are properly charged, this value should be very close to 5V as shown here:

print("Manufacturer : ", GPG.get_manufacturer() )print("Board : ", GPG.get_board() )print("Serial Number : ", GPG.get_id() )print("Hardware version: ", GPG.get_version_hardware()) ...