| Item# | Quantity | Description | Adafruit Price | eBay Price |
|---|---|---|---|---|
| 1 | 1 | Arduino Uno R3 | $29.95 | $6.94 |
| 2 | 1 | USB Cable | $4.00 | N/A |
| 3 | 1 | 400 contact bread board | $5.00 | $2.27 |
| 4 | 1 | 65 flexible breadboard wires | $6.00 | $1.59 |
| 5 | 1 | Photo cell (CdS photoresitor) | $0.95 | $0.05 (20 for $0.99) |
| 6 | 1 | 1K potentiometer | N/A | $0.18 (10 for $1.79) |
| 7 | 1 | 10K potentiometer | N/A | $0.18 (10 for $1.79) |
| 8 | 2 | Mini Push Button | N/A | $0.03 (100 for $1.39) |
| 9 | 5 | bright red diffused LEDs | N/A | $0.09 (100 for $1.68) |
| 10 | 3 | ultra bright LEDs | N/A | $0.15 (100 for $2.85, 20 each color Red Green Blue Yellow White) |
| 11 | 5 | 100 OHM Resistor | N/A | $0.10 (50 for $0.99) |
| 12 | 5 | 1k OHM Resistor | N/A | $0.08 (100 for $1.49) |
| 13 | 5 | 10k OHM Resistor | N/A | $0.08 (100 for $1.49) |
Summary:
adafruit package price: $49.50
adafruit sum price: $41.90 (does not include resistors, LEDs, switches and potentiometers)
eBay buy it now price: $11.74
| Items | Quantity | Description | Price |
|---|---|---|---|
| 1,2 | 1 | Arduino UNO | $6.94 (add $5.00 for Mega), includes USB cable |
| 3 | 1 | Breadboard | $1.89 |
| 4 | 1 | 20 wire assortment (male to male) | $0.53 (one third of a set for $1.59) |
| 1 | 20 wire assortment (female to female) | $0.70 (half of a set for $1.39) | |
| 1 | 20 wire assortment (male to female) | $0.82 (half of a set for $1.64) | |
| 5 | 2 | Photoresistor GL5528 LDR Photo Resistors | $0.10 (20 for $0.99) |
| 6 | 2 | 1K potentiometer | $0.36 (10 for $1.79) |
| 7 | 2 | 10K potentiometer | $0.36 (10 for $1.79) |
| 8 | 2 | Mini Push Button | $0.03 (100 for $1.39) |
| 9 | 5 | Bright red diffused LEDs | $0.09 (100 for $1.68) |
| 10 | 10 (2 each color) | Ultra bright LEDs | $0.30(100 for $2.91, 20 each color Red Green Blue Yellow White) |
| 11,12,13 | 1 | Resistor assortment (20 resistors at 20 values) | $2.29 |
| 1 | Single Row 40 Way / Pin 2.54mm Pitch Pin Header | $0.10 | |
| 1 | Ultrasonic Module HC-SR04 Distance Measuring Transducer | $1.12 | |
| 1 | 9V DC Battery Power Cable Plug Clip barrel jack connector | $1.09 | |
| 1 | DHT11 Digital Temperature Humidity Sensor Module Probe | $1.39 | |
| 1 | ULN2003 Stepper Motor Driver Board with motor | $2.00 | |
| 2 | 5mm 4 pin RGB common cathode led | $0.15 ($7.25 per 100) | |
| 1 | Plastic box | $1.07 |
Total for kit above is $21.33.