Marsa Altimeter Comprehensive List of Features

  • Complete programability without the need of a computer
  • Four current limited and protected outputs
    • Output current is measured during firing and controlled to 6A max
    • Fully LiPo battery safe without regards to battery size (2S LiPo recommended)
  • Apogee detection options
    • Barometric only
    • Accelerometer only
    • Barometric OR Accelerometer which ever occurs first
    • Kalman filter fusion of Barometric and Accelerometer inputs
    • Adjustable delay in 0.1 second increments
  • Main Altitude events
    • Deployment altitude adjustable in 100ft increments
  • Timer events
    • Delay from Launch Detect
    • Delay from Motor Burnout
    • Altitude - time lockout for staging protection
  • On-board Diagnostics
    • Live barometric and sensor accelerometer readings
    • Battery voltage
    • Actual e-match resistance readings (diagnostics and for continuity check)
    • Output FET test and test-LED's for each output channel
    • Flight simulator to test and dry-run altimeter event programming
  • Power on Self Test (POST) and Continuity testing
    • All sensors tested for normal outputs
    • Ematch resistance checked,  POST will fail if resistance is too or too low (short circuit)
    • POST will fail if battery voltage drops below 6.5V
    • Output channel and channel programming checked for consistency.
      • Post will FAIL if there is an ematch attached to channel with no events programmed
      • Post will FAIL if there is no ematch connected to a programmed channel
  • Audio and visual indicators
    • Beeper with programmable frequency tone
    • Connection for external LED
    • On-board super bright Cree LED on Marsa33LHD
  • Reliability and Robustness
    • All flight critical components surface mounted
    • 5V signal levels for greater RF interference and noise immunity
  • Data
    • Flight data storage for last 2 flights
    • Motor thrust and impulse characterization analyzer within MarsaConnect (PC Windows only)
  • Expandability
    • Extend to 9 programmable with MarsaNet and remote Pyro Modules (MrfPyro)
    • Future MarsaNet and other expandable modules in development