R-DAS
AED COMPACT R-DAS FLIGHT COMPUTER GUIDE
The following pictorial guide, provides an overview of where the main features on the AED Compact R-DAS circuit board are located.
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Compact R-DAS Main Power Input - Unlike its predecessor, the R-DAS Classic, the Compact R-DAS does not have an onboard power switch, but instead has 2 power input terminals (+) and (-), enabling various power systems to be connected to it. This adds to the system's flexibility, since various power sources can easily be used, e.g. a standard PP3 9 volt alkaline or lithium battery, or a 9.6 Volt Ni-Cad or Ni-MH rechargeable battery pack. |
| Compact R-DAS Beeper - The Compact R-DAS Audio Beeper is a piezoelectric transducer type beeper. |  |
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Compact R-DAS Main Output Terminals - these 2 terminals are used to connect an igniter which initiates main recovery deployment. The terminal screws are unscrewed with a flat blade screwdriver, the igniter wires are placed into the terminal blocks, and the terminal screws are screwed tight. |
| Compact R-DAS Drogue Output Terminals - these 2 terminals are used to connect an igniter which initiates drogue recovery deployment. The terminal screws are unscrewed with a flat blade screwdriver, the igniter wires are placed into the terminal blocks, and the terminal screws are screwed tight. |  |
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Compact R-DAS Expansion port - the 14-pin expansion port connector plug, allows a 14-pin expansion connector socket to be connected from the R-DAS to various R-DAS modules equipped with similar 14-pin expansion port connector plugs, namely; the GPS module, the igniter board, the XY accelerometer board, the thermocouple board, the magnetometer board, or the On Screen Display Board. |
| Compact R-DAS breakwire jumper connector - the Compact R-DAS breakwire jumper connector is used to enable or disable the breakwire triggering method instead of the G-switch triggering method. With standard G-switch triggering, a jumper is connected to the connector (i.e. the connector is shorted). |  |
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Compact R-DAS CPU - the CPU used to power the Compact R-DAS is a Philips 80C552 CPU. The Compact R-DAS CPU is mounted on the rear of the circuit board. |
| Compact R-DAS Accelerometer - The Compact R-DAS Accelerometer is an Analog Devices ADXL150, a 14-pin, surface mount accelerometer. |  |
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Compact R-DAS Pressure Sensor - The Compact R-DAS Pressure Sensor is a Motorola PMXS4100A, an 8-pin, surface mount, barometric pressure sensor. The MPXS4100A has a range of 20 kiloPascals to 105 kiloPascals, and a resolution of 0.09 kiloPascals. The Compact R-DAS Pressure Sensor is mounted on the rear of the circuit board. |
| Compact R-DAS Arming Terminals - . |  |
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Compact R-DAS Serial Port Connector - The serial port connector enables a cable to be plugged into the R-DAS at one end and a PC with an RS-232 serial port (or USB to serial adaptor) at the other end. This then enables downloading of the R-DAS flight data, uploading of new launch settings, and uploading / updating the R-DAS firmware - all via the R-DAS software interface. |
See Also
Hybrid Rocket Science, Hybrid Rocket Help Clinic, Amateur Hybrid Motors, Amateur Liquid Rockets, Guidance, Gimballed Motors, Launch Controller, UK Rocketry Vendors, UK Rocket Groups, UK Space Organisations
