ADI Bill of Materials

Mouser Project shopping link: Dangerpants Labs ADI v1.2 Shopping List* -- use this link to quickly purchase most of the components necessary to build an ADI

Integrated circuits, active devices:

Quantity	ID	Name	Notes	Approx. cost
1	IC1	Atmel ATMega328P	Main processor	$5
1	IC2	Freescale MPXV5004DP	Differential pressure sensor	$12
1	IC3	Bosch BMP085*	Ambient pressure and temperature sensor (see note below)	$8
1	IC3	Bosch BMP180*	Ambient pressure and temperature sensor (see note below)	$2.50
1	IC4	Maxim DS1307	Real-time clock chip	$4
1	IC5	LM7805	5V voltage regulator	$0.50
1	IC6	UA78M33CKCS	3.3V voltage regulator	$0.20
1	LCD1	16x2 character LCD	Any HD44780-based LCD will work. Firmware assumes 16x2.	$5

Mechanical components:

Quantity	ID	Name	Notes	Approx. cost
1		Printed Circuit Board	Order from OSH Park	$33 per 3 boards
3	SET, PLUS, MINUS	SPST Momentary switch**	Any type, per your requirements**	Varies
1	ISP	2.54mm pitch 6 position 2 row header pins	ISP header pins	$0.35

Passive components:

Quantity	ID	Name	Notes	Approx. cost
1	Q1	AB26T-32.768KHZ	RTC crystal	$0.50
1	Q2	AB308-16.000MHZ	CPU crystal	$0.50
4	R1, R2, R4, R5, R6	4.7 kΩ 1/4 watt resistor		$0.05 each ($0.20 total)
1	R3	10 kΩ potentiometer		$0.50
7	C1, C2, C5, C6, C7, C8, C9	.1 μF capacitor		$0.05 each ($0.35 total)
2	C3, C4	.33 μF electrolytic capacitor		$0.10 each ($0.20 total)
2	C10, C11	22 pF capacitor		$0.05 each ($0.10 total)
1	MOV1	15-20V (12V systems) or 30-35V (24V systems) MOV	Such as MOV-07D180K (20V MOV) at Mouser	$0.50

Miscellaneous:

Quantity	ID	Name	Notes	Approx. cost
1	G1	CR2032 holder and battery		$1
1		8-pin DIP socket		$.20
1		28-pin DIP socket		$.20

* The Mouser Project is missing one thing: the Bosch Sensortec BMP085 has been discontinued. The BMP180 is a "function compatible" but not "pin compatible" replacement for the BMP085, so it will not work with the v1.2 ADI board. The v1.3 board is set up to work with this new sensor. The BMP180 is available from Future Electronics and is considerably less expensive than the BMP085.

** Switches are also not included in the Mouser Project list. Select three SPST momentary normally-off switches which match your intended usage.