by M-Short
Subtotal = $151.85
Class D Amp SFE = $7.95 each, Adafruit option = $3.95 H-bridge SFE = $8.95 each, Adafruit option = $4.95 Difference = $8.00
Also requested https://www.adafruit.com/products/2716 - Microphone $4.95 https://www.adafruit.com/products/2471 - ESP8266 breakout $9.95 https://www.adafruit.com/products/2424 - Stepper motor $9.95 https://www.adafruit.com/products/2479 - Bluefruit $17.50 https://www.adafruit.com/products/2831 - Photo sensor $0.95 OR http://www.digikey.com/product-search/en?vendor=0&keywords=tept4400 - Photo sensor - $0.36 at 100 Subtotal = $43.30
Null Modem - http://www.monoprice.com/product?p_id=1202 - $1.47 Switch - http://www.dx.com/p/5-way-tactile-switch-breakout-red-383707#.VspycfIrJhE - $3.27 Mount - http://www.lynxmotion.com/p-397-multi-purpose-sensor-housing.aspx - $4.95 Subtotal = $9.69
Total = $151.85 - $8.00 + $43.30 + $9.69 = $196.84 (this is all based on single quantity prices) This does not include headers Qty requested = 200