layout	title
page	What to buy

Electronics (order one per feeder):

Item	Quantity	URL
Arduino Pro	1	https://www.sparkfun.com/products/10915
Stackable headers (Arduino Pro)	1	https://www.sparkfun.com/products/10007
Stackable headers (data logger)	1	https://www.sparkfun.com/products/11417
Male headers (motor shield)	1	https://www.sparkfun.com/products/116
Photointerrupter (GP1A57HRJ00F)	1	https://www.sparkfun.com/products/9299
Photointerrupter breakout board	1	https://www.sparkfun.com/products/9322

Item	Quantity	URL
FTDI Friend + extras - v.10	1	https://www.adafruit.com/product/284
Datalogging shield	1	https://www.adafruit.com/products/1141
SD card	1	https://www.adafruit.com/products/102
Stepper motor	1	https://www.adafruit.com/products/858
ON/OFF switch	1	https://www.adafruit.com/products/916
Motor shield v2	1	https://www.adafruit.com/product/1438
Powerboost charger	1	https://www.adafruit.com/products/2465
3-pin JST connector	1	https://www.adafruit.com/products/1663
2-pin JST connector	3	https://www.adafruit.com/products/2880
3.7V 4400mAh LiPo	1	https://www.adafruit.com/products/354
Note an alternative battery supplier for shipments outside of the US: http://www.all-battery.com/Li-Ion186503.7V4400mAhBattery-31000.aspx)

Hardware and wires:

Item	Quantity	URL
Jumper wires	1	https://www.sparkfun.com/products/12796
4.7K ohm resistors	1	https://www.sparkfun.com/products/10969
Pan head phillips sheet metal screw, No 6 size, 1/4" length	2	http://www.mcmaster.com/#90184a120/=14ao2aq
Pan head phillips sheet metal screw, No 2 size, 1/4" length	2	http://www.mcmaster.com/#90184a050/=14ao1x7
Nylon 100 degree flat head slotted machine screw, 4-40 thread, 1" length	2	http://www.mcmaster.com/#90241a253/=14ao2m
Nylon hex nut, 4-40 thread size	2	http://www.mcmaster.com/#94812a200/=14ao32r