RRC2L Altimeter System
Like the racing Greyhound, the RRC2L embodies the same collection of traits that exemplify this amazing breed. The RRC2L unit is ready to fly dual deployment ready right out of the box, providing a drogue event at apogee and a main event at 500 ft AGL. It's designed to operate with our LCD Terminal, providing a readable display for flight data, diags, and settings.
The RRC2L provides many enhancements over the original RRC2+ by providing a specialized collection of recovery and flight controls inherited from the RRC3. These operations are programmed using a new, 4th deployment mode that utilizes the MAIN Event output.
These Main Output Control Sequence (OCS) settings provide an extremely flexible and capable collection of control options, allowing users to create a custom control sequence independent of the standard drogue event performed by the RRC2L on the Main output of the unit.
These control operations are capable of permissive staging/separation controls, timing control operations, and other specialized applications while still providing an independent drogue event for recovery.
Architectural Features
· 16MHz 16-bit MSP430 Series mCU
· MSI MS5607 Pressure sensor (high resolution 1mBar sensor with a factory calibrated 24 bit ΔΣ ADC)
Operational Range
· 40K MSL (Sensor system is 100K MSL capable)
Power Requirements
· 3.5 VDC to 10.0 VDC / Optimized for 9V battery power
· 6ma @ 9V quiescent / 35ma @ 9V during piezo and LED operation
Physical Properties
· Length 58mm (2.28")
· Width 23.5mm (0.925")
· Weight ~10 grams
· Mounts via 2" hole centers (same as RRC2-mini)
Output Events
· Drogue / Main
· 3A pulse @ 9V current sinking
Flight Data Recording
· Reports peak altitude "post flight" and saves this value to EEPROM
· Reports EEPROM peak altitude and battery voltage at power up
HMI Feedback
· Programmable frequency and extra loud 85dB magnetic buzzer
· High efficiency red LED status indicator
· LCD Terminal (purchased separately) for human-readable interaction includes:
MaxAlt - Apogee for the latest flight
MaxVEL - Maximum velocity for the latest flight
Pad - Number of seconds between power on and liftoff
Apogee - Number of seconds between liftoff and apogee
Chute - Number of seconds between apogee and the rocket reaching the ground
Power On - Altimeter bay temperature at power on
Launch - Altimeter bay temperature at liftoff
Low - Lowest altimeter bay temperature during last flight
Drogue - Average Velocity during drogue descent
Main - Average Velocity during main descent
Flights - Total number of flights on the RRC2L
Time - Total flight time on the RRC2L
Altitude - Total Total vertical distance up the RRC2L has travelled
Programmable Settings (via LCD)
· Arming AGL'
· Main AGL' (PROG button programmable)
· Deployment Mode
· Audio Setup
· Units Setup
· Low Voltage Lockout
· Piezo Tone
· Drogue Delay
(plus 6 additional MOCS settings / see the User Manual for Additional Details)
