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Lab 08 - Believer Comms and Firmware

Activity 1:

For the first activity, our group set up the RFD900x telemetry modules that will be used on the believer. This module broadcasts at a frequency of 915MHz, which allows us to broadcast the telemetry data over very long distances. When we were setting up the RFD900, we had to be careful to always install the antennas when we powered it on. If the antenna is not connected, the transmitter has no where to send its power, causing the radio frequency energy to reflect back into the module. This can damage components. Additionally, there is no USB port on the RFD900, so we had to use a USB to serial adapter to connect to the RFD900. We then set up the firmware on the telemetry radios. In order to do that, we had to set the correct baud rate, which is the number of signal changes per second in the data link.

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Activity 2:

During Activity 2, our group flashed the flight controller with the Windracers flight controller firmware. We followed the guide for installing the custom .apj firmware to the flight controller on mission planner, which is a software for setting up and monitoring autonomous vehicles. After the flight controller finished flashing, we connected the flight controller to the Windracers ground control app.

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