This Altimeter used for measurement during a rocket flight, this altimeter reads barometric data and stores it 10 times per second in an 8K EEPROM until apogee is detected (when pressure starts to rise again). Then a MOSFET output is activated to trigger a pyrotechnic ejection charge for a parachute. An optional second channel can be used for dual recovery (small drogue first and main parachute later for soft landing without too much drift).
- Processor: AT90S2323
- ADC: TLV1541 or TLV1544 (10 bit ADC 1 or 4 channels)
- Sensor(s): MPX5100 (barometric)
- Schematics
- Programming language: Assembler
