123456123456123456AD6x1F-H8.5C1100nC2100nC31uC4100nC5100nC6100nC7100nC81uC922pC1122pD1M7D2CD1206-S01575D3CD1206-S01575F1MF-MSMF050-2 500mA***GNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGND1212GROUND*123456ICSP3x2 M123456ICSP13x2 M1234567891012345678910IOH10x1F-H8.51234567812345678IOL8x1F-H8.512341234JP22x2 M - NMLYELLOWL1BLM21ONGREEN+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+5V+PC147u+PC247u1234567812345678POWER8x1F-H8.5R11MR21M12345RESETTS42031-160R-TR-72601212RESET-EN*18RN1A10K27RN1B10K36RN1C10K45RN1D10K18RN2A1K27RN2B1K36RN2C1K45RN2D1K18RN3A22R27RN3B22R36RN3C22R45RN3D22R18RN4A1K27RN4B1K36RN4C1K45RN4D1KRXYELLOWT1FDN340PTXYELLOWReference Designs ARE PROVIDED "AS IS" AND "WITH ALL FAULTS. Arduino DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,Arduino may make changes to specifications and product descriptions at any time, without notice. The Customer must notREGARDING PRODUCTS, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSErely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Arduino reservesthese for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.The product information on the Web Site or Materials is subject to change without notice. Do not finalize a design with this information.ARDUINO is a registered trademark.*1IN3OUT42U1NCP1117ST50T3GGND2IN1NC/FB4ON/!OFF3OUT5U2LP2985-33DBVR(AIN0/INT1)PD17(AIN2/PCINT11)PC25(CTS/HWB/AIN6/TO/INT7)PD713(INT4/ICP1/CLK0)PC722(INT5/AIN3)PD410(OC0B/INT0)PD06(OC1A/PCINT8)PC623(PCINT5)PB519(PCINT6)PB620(PCINT7/OC0A/OC1C)PB721(PCINT9/OC1B)PC525(PCINT10)PC426(PD0/MISO/PCINT3)PB317(PDI/MOSI/PCINT2)PB216(RTS/AIN5/INT6)PD612(RXD1/AIN1/INT2)PD28(SCLK/PCINT1)PB115(SS/PCINT0)PB014(T1/PCINT4)PB418(TXD1/INT3)PD39(XCK/AIN4/PCINT12)PD511AVCC32D+29D-30GND3PAD33RESET(PC1/DW)24UCAP27UGND28UVCC31VCC4XTAL11XTAL2(PC0)2U3ATMEGA16U2-MU(R)321U5ALMV358IDGKR567U5BLMV358IDGKR84V+V-*112233X1POWERSUPPLY_DC21MMX*1234P$1P$1P$2P$2USBX2USB-B_TH12Y116MHzCSTCE16M0V53-R0 16MHZZ1CG0603MLC-05EZ2CG0603MLC-05E(ADC0)PC0)23(ADC1)PC124(ADC2)PC225(ADC3)PC326(ADC4)PC427(ADC5)PC528(AIN0)PD612(AIN1)PD713(ICP)PB014(INT0)PD24(INT1)PD35(MISO)PB418(MOSI)PB317(OC1)PB115(RXD)PD02(SCK)PB519(SS)PB216(T0)PD46(T1)PD511(TXD)PD13AGND22AREF21AVCC20GND8RESET1VCC7XTAL19XTAL210ZU4ATMEGA328P-PU+3V3+3V3+3V3+5V+5VAD0AD1AD2AD3AD4/SDAAD4/SDAAD5/SCLAD5/SCLAREFAREFCMPD+D-DTRGATE_CMDGNDIO0IO1IO2IO3IO4IO5IO6IO7IO8IO9L13M8RXDM8RXDM8TXDM8TXDMISOMISO2MISO2MOSIMOSI2MOSI2PB4PB5PB6PB7PWRINRD+RD+RD-RD-RESETRESETRESET2RESET2RXLEDSCKSCKSCK2SCK2SSSSTP_VUCAPTXLEDUGNDUGNDUSBVCCUSBVCCUSBVCCUSHIELDVINVINVINXT1XT1XT2XTAL1XTAL2XUSB012345678910111213Arduino(TM) UNO Rev3USB boot EnSDASCLUse of the ARDUINO name must be compliant with http://www.arduino.cc/en/Main/Policy