Qty.
Part Number
Part Description
Supplier
Unit Cost
Total Cost
1
ATMega32
Atmel Mega32 microcontroller
Lab
$8.00
$8.00
1
n/a
Solderboard
All Corp
$5.50
$5.50
13
8548SL
24VDC push-type solenoid
MPJA
$1.55
$20.15
13
TIP31C
Power transistor
ON Semiconductor
Free sample
15
n/a
Power diode
Lab
Free
4
ILQ5-4
Quad opto-isolator
Vishay Semiconductor
Free sample
1
MAX166
High speed parallel ADC
Maxim IC
Free sample
1
1
LM323T
5V voltage regulator
ON Semiconductor
Free sample
1
OPA227P
Low-noise precision op-amp
Texas Instruments
Free sample
1
DN4512-ND
100mH high-current inductor
Digikey
$2.08
$2.08
1
n/a
9-pin SUB-D connector
All Corp
$0.50
$0.65
1
n/a
9V battery
Lab
$2.00
$2.00
1
UC2577-ADJ
Switching voltage regulator
Texas Instruments
Free sample
1
n/a
Power jack
Lab
Free
1
n/a
9V battery connector
Lab
Free
1
n/a
16MHz crystal
Lab
Free
2
n/a
¼” by 1” wood plank
Home Depot
$0.40
$0.80
1
MAX202CPE
RS232 chip
Maxim IC
Free sample
2
n/a
Pushbutton
Old PC
Used item
1
n/a
Microphone
Old PC
Used item
1
n/a
STK200 programming dongle
Lab
Loaned
1
n/a
IDE cable
Old PC
Used item
?
n/a
Assorted resistors
Lab
Free
?
n/a
Assorted capacitors
Lab
Free
2
n/a
LEDs
Lab
Free
Total
$39.18
Budget surplus
$0.72