Altus Metrum EasyMega - Rocket Altimeters

Recording altimeter for high power model rocketry
Supports dual deployment and 4 additional pyro events.
Pyro events are configurable and can be based on time and various flight events and status, including angle from vertical (for safety in staging and air start flights).
Barometric pressure sensor good to 100k feet MSL
3-axis 200-g accelerometer for motor characterization
3-axis 16-g accelerometer for gyro calibration
3-axis 2000 deg/sec gyros
3-axis magnetic sensor
On-board non-volatile memory for flight data storage
Can drive up to 4 RC-style servos
USB for power, configuration, and data recovery
Integrated support for LiPo rechargeable batteries
User choice of pyro battery configuration, can use primary LiPo or any customer-chosen separate pyro battery up to 12 volts nominal.
2.25 x 1.25 inch board designed to fit inside 38mm airframe coupler tube

Hardware Features
- ST Micros STM32L151 ARM Cortex M3 based Microcontroller
- 150mA 3.3V LDO regulator
- Winbond W25Q64CV serial flash memory
- Measurement Specialties MS5607 Micro Altimeter Module
  - Wide range — 120kPa to 1kPa (approximately -1500m to 31000m)
  - High precision — 2.4Pa resolution (approximately 20cm at sea level)
  - Factory calibrated.
- Analog Devices ADXL375 3-Axis Digital MEMS Accelerometer
```
      * +- 200g full-scale
      * on-chip digitizer
```
- Invensense MPU-9250 Nine-Axis MEMS Motion Tracking Device
  - tri-axis angular rate sensor up to 2000 degrees/second
  - tri-axis accelerometer with +- 16g range
  - tri-axis magnetic (compass) sensor
  - three on-chip ADCs for true simultaneous sampling of all axes
Software Features
- Written mostly in C with some ARM assembler
- Runs from on-chip flash, uses on-chip RAM, stores flight data to serial flash
- USB serial emulation for "console" interface
Tools Used
- Lepton EDA for schematic capture and pcb-rnd for PCB layout
Licenses
- The hardware is licensed under the TAPR Open Hardware License
- The software is licensed GPL version 2

Earn Reward Points: 300

Earn Discount: $9.00

EasyMega