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.

Compact R-DAS Power Terminals 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. Compact R-DAS Audio Beeper
Compact R-DAS Main Terminals 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. Compact R-DAS Drogue Terminals
Compact R-DAS Expansion Port Connector 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). Compact R-DAS Breakwire Jumper Connector
Compact R-DAS CPU 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. Compact R-DAS Accelerometer
Compact R-DAS Pressure Sensor 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 - . Compact R-DAS Arming Terminals
Compact R-DAS Serial Port Connector 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