GAMBLS Payload User Manual
Turning the Payload ON
- Collect payload components, including sensor board, transmitter board, pitot board, and LiPo battery.
- Connect transmitter board to sensor board by inserting pin connections between boards. There are total of four headers with 16 pins. Make sure the 3.3V pin on the transmitter board is connected to the 3.3V pin on the sensor board.
- Connect the pitot board to the sensor board by connecting a wire between the connection headers on the sensor board and pitot board.
- Complete the circuit on the sensor board by connecting the switch. This is done by twirling the ends of the copper wires on the sensor board.
- Plug the LiPo battery into the terminal on the transmitter board.
Testing the Sensors
- Connect the payload to the computer by connecting a microUSB cord to the outlet on the sensor board and the USB outlet on the computer.
- Find the which port the payload is connected to by looking up the COM in the device manager. The payload is usually connected to a port between COM10-COM15.
- Start hyperterminal using the following settings:
Baud Rate – 115200
Flow Control – None
- Connect the Atmel ICE programmer to the sensor board using the JTAG header. Make sure the ICE is set for SAM and not AVR.
- Start the project in Atmel Studio.
- Download the sensor code to the sensor board by pressing the debug button in Atmel Studio.
- Monitor the output on HyperTerminal for correct data.
- Soldering can create hot surface, fire and smoke which can damage your eyes and skin.
- Battery also creates fire risks during flight because of high speeds and temperature changes fast which can be problems for the LiPo battery.
- The battery also requires a precise charging profile to avoid damage which is accomplished with a LIPO charging circuit.
- The payload itself poses very little danger as the boards operate at 3.3 volts.