Purchases

This is a list of purchases and other aquisitions.

March 10

• FieldSat: Three gyroscopes and one two-axis accelerometer received for free from Analog Devices.

May 2

• FieldSat (David): ATmega control board and programmer, $55.90
• FieldSat (David): SD/MMC boards (2), $40.00

May 23

• FieldSat: Parts request from Analog Devices
  • Two AD7859 analog-to-digital converters (received June 1)
  • Two ADXL321 accelerometers (received May 30)
  • One ADXL320 accelerometer (received May 30)
  • Two AD22100 temperature sensors (received)

May 25

• FieldSat (David): One MPX2100A pressure sensor, $26.24 (received May 31)

May 26

• FieldSat (Devlin):
  • 4 16-pin 18" IDC cables, $13.80
  • 6 16-pin IDC headers, $3.88
  • 2 10-pin IDC headers, $1.22
  • 2 44-pin PLCC sockets, $1.48
  • 0.1 μF capacitor, $0.84
  • 0.01 μF capacitor, $0.72
  • Shipping, $6.13
  • Total, 28.07

May 28

• Heater (David):
  • 2 PC boards, $1.80
  • 6" by 8" perfboard, $2.15
  • 50 assorted 1/4-watt resistors, $2.65
  • 2 10-watt, 10-ohm resistors, $0.90
  • 2 10-watt, 1-ohm resistors, $0.90
  • Tax, $0.68
  • Total, $9.08

June 2

• Heater (David):
  • 3 1/4-watt, 10-ohm resistors, $0.96
  • 6 1/2-watt, 10-ohm resistors, $1.92
  • 2 5-V voltage regulators, $1.02
  • 1 12-V voltage regulator, $0.51
  • Tax, $0.36
  • Total, $4.77

June 21

• FieldSat (David):
  • Toggle switch, $0.90
  • 9 V battery clips, $0.60
  • 4 8-pin IC sockets, $0.42
  • 4 14-pin IC sockets, $0.78
  • 10% discount, −$0.27
  • Tax, $0.20
  • Total, $2.63

June 25

• FieldSat (Devlin):
  • 128 MB SD card, $9.97
  • PC boards, $8.66
  • Tax, $ 1.42
  • Total, $20.05

July 10

• SolarSat (David):
  • Photoresistors, $1.95
  • Tax, $0.16
  • Total, $2.11