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*                                Padfield's Altimeter V3                                  *
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FEATURES:
 * Barometric pressure recording altimeter
 * Lift-off detection via G-switch
 * Dual deployment - drogue chute at apogee, main at 500 ASL (by default)
 * Data downloadable to PC
 * Flashing red and green lights!

INSTRUCTIONS FOR USE
 * Rotary switch should be in position 1 (this is the STANDBY mode).
 * Switch altimeter on by inserting battery.
 * Install altimeter in rocket.
 * Load rocket onto launch pad.
 * Now turn switch to position 2 (the altimeter is now waiting for lift-off; red LED
   flashes). The lift-off can be aborted by moving the switch back to position 1 (puts the
   altimeter back into STANDBY mode).
 * Altimeter will start recording air pressure data when it detects an acceleration of 5g
   along the vertical axis of the rocket, and fire the drogue and main chutes at the
   appropriate times.
 * To download data to a PC, connect to the PC serial port as shown in the schematic, and
   move switch to position 3 (green LED flashes).

(C) J Padfield. This text file written 3rd March 2005. Any comments or questions, please
email me at james.padfield@gmail.com
