Minimal Hardware List (US) Arduino based

 ManufacturerFunctionProduct NameQuantity

URL

Price
       
 Open Hardware     
  Raspberry-Pi 1http://www.amazon.com/CanaKit-Raspberry-Complete-Starter-Kit/dp/B01C6Q2GSY/ref=sr_1_1?s=pc&ie=UTF8&qid=1461090467&sr=1-1-spons&keywords=raspberry+pi+3&psc=1 $74.99
  Arduino UNO BoardArduino UNO R3 ATmega328P1http://www.amazon.com/MakerBest-Quality-Compatible-ATmega328P-Development/dp/B00Q6ZW4NO/ref=sr_1_6?s=pc&ie=UTF8&qid=1456944105&sr=1-6&keywords=arduino+uno $5.65
  Sensor Expansion Shield for ArduinoGikfun Sensor Shield Digital Analog Module V4 for Arduino Duemilanove UNO Mega2560 EK21381http://www.amazon.com/gp/product/B00VWVFVLO?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 $9.68
       
  Humidity SensorDHT11 Digital Temperature Humidity Sensor Module for Arduino1https://www.amazon.com/gp/product/B0100A9SZ2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 $4.99
  Temperature SensorSunFounder NTC Thermistor Sensor Module for Arduino and Raspberry Pi1http://www.amazon.com/SunFounder-Thermistor-Sensor-Arduino-Raspberry/dp/B014KNVSHG/ref=sr_1_6?ie=UTF8&qid=1456945449&sr=8-6&keywords=sunfounder+Temperature+Sensor $5.99
  Ambient SensorArduino compatible Light Sensor1http://www.amazon.com/gp/product/B00AF278A8?psc=1&redirect=true&ref_=oh_aui_detailpage_o02_s00 $6.59
  Servo MotorHOSSEN® 5pcs Genuine Mini SG90 Micro 9g Servo For 450 RC Helicopter Airplane Car Boat1http://www.amazon.com/HOSSEN%C2%AE-Genuine-Micro-Helicopter-Airplane/dp/B00CCZ2CRA?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s02

$13.89

   RGB LED's RGB LED Module 3 http://www.resistorpark.com/arduino-rgb-led-module/?utm_medium=googleshopping&utm_source=bc&gclid=EAIaIQobChMIvarTxrH71wIVAoGzCh246gXnEAQYBCABEgLpIvD_BwE 
 General     
  USB Camera

SODIAL(R) USB Webcam with LED Lights - Metal Finish

1http://www.amazon.com/SODIAL-USB-Webcam-LED-Lights/dp/B00SO2UOMU/ref=sr_1_13?s=pc&ie=UTF8&qid=1461626161&sr=1-13&keywords=Webcam+-+USB&refinements=p_n_feature_keywords_three_browse-bin%3A6159451011 $15.95