Search the Arduino Website All part numbers are from Digikey (http://www.digikey.com) Part C1 C2 C3 C4 IC2 IC4 LED1 Q1 R1 R2 S1 X1 Value 10uF 1uF 22pF 22pF MEGA168-P 7805 16MHz 10K 220 Desc. 10UF 50V MINI ALUM ELECT (KA) 1.0UF 50V MINI ALUM ELECT (KA) CAP 22PF 200V 5% CER RADIAL CAP 22PF 200V 5% CER RADIAL IC AVR MCU 16K 20MHZ 28DIP IC REG 1A POS 0-125DEG C TO-220 LED 3MM GREEN CLEAR CRYSTAL 16.000 MHZ HC49/US RES 10K OHM 1/4W 5% CARBON FILM RES 220 OHM 1/4W 5% CARBON FILM SWITCH TACT 6MM MOM 100GF CONN D-SUB RECPT 9POS AU FLASH Digikey Part No. P828-ND P824-ND 399-1926-ND 399-1926-ND ATMEGA168-20PU-ND LM7805CT-ND 160-1144-ND 300-8499-ND 10KQBK-ND 220QBK-ND SW400-ND A32510-ND Unit Cost $USD 0.16 0.14 0.11 0.11 4.11 0.45 0.19 0.63 0.06 0.06 0.28 3.06 A few extra parts for bootloader programming: Qty. 1 1 1 Desc. PROGRAMMER AVR IN SYSTEM CONN HEADER RT/A 10POS .100 TIN CONN HEADR BRKWAY .100 20POS STR Digikey Part No. ATAVRISP2-ND A1920-ND A26509-20-ND Unit Cost $USD 34.00 0.83 1.00 thanks to Stephen Ludin for the Dec 2008 update Share NEWSLETTER Enter your email to sign up ©2016 Arduino Copyright Notice (//www.arduino.cc/en/Main/CopyrightNotice) About us (//www.arduino.cc/en/Main/AboutUs) (https://twitter.com/arduino) Contact us (//www.arduino.cc/en/Main/ContactUs) Careers (//www.arduino.cc/Careers) (https://www.facebook.com/official.arduino) (https://www.flickr.com/photos/arduino_cc) (https://youtube.com/arduinoteam) (https://plus.google.com/+Arduino) Click below to find more Mipaper at www.lcis.com.tw Mipaper at www.lcis.com.tw