Recent activity:

  • 9600 updated6 years ago
  • psd pushed6 years ago
  • psd pushed6 years ago
  • 9600 pushed6 years ago

Tagged with

Description

The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter. Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.

Schematic

Board

Bill of Materials

Designator Value Description
AD PIN HEADER
C1 100n CAPACITOR, European symbol
C2 100n CAPACITOR, European symbol
C3 1u CAPACITOR, European symbol
C4 100n CAPACITOR, European symbol
C5 100n CAPACITOR, European symbol
C6 100n CAPACITOR, European symbol
C7 100n CAPACITOR, European symbol
C8 1u CAPACITOR, European symbol
C9 22p CAPACITOR, European symbol
C10 22p CAPACITOR, European symbol
C11 22p CAPACITOR, European symbol
C12 22p CAPACITOR, European symbol
D1 M7 DIODE
F1 500mA INDUCTOR, European symbol
GROUND SMD solder JUMPER
IC1 MC33269ST-5.0T3 Adjustable Output Low Dropout Voltage Regulator 800 mA
IC2 MC33269D-5.0 Adjustable Output Low Dropout Voltage Regulator 800 mA
ICSP ICSP PIN HEADER
ICSP1 ICSP PIN HEADER
IOH PIN HEADER
IOL PIN HEADER
L YELLOW LED
L1 BLM21 SMD EMI Suppression Ferrite Beads
ON GREEN LED
PC1 47u POLARIZED CAPACITOR, European symbol
PC2 47u POLARIZED CAPACITOR, European symbol
POWER PIN HEADER
Q1 16MHz CRYSTAL
Q2 16MHz CRYSTAL
R1 1M RESISTOR, European symbol
R2 1M RESISTOR, European symbol
R3 27R RESISTOR, European symbol
RESET TS42 TS42
RESET-EN SMD solder JUMPER
RN1 10K Array Chip Resistor
RN2 1K Array Chip Resistor
RN3 22R Array Chip Resistor
RN4 1K Array Chip Resistor
RX YELLOW LED
T1 FDN304V MOS FET
TX YELLOW LED
U$3 FIDUCIALMOUNT
U$4 FIDUCIALMOUNT
U$6 FIDUCIALMOUNT
U1 LM358D OP AMP also LM158; LM258; LM2904
U2 LP2985-33DBVR ULTRALOW-POWER 50-mA LOW-DROPOUT LINEAR REGULATORS
U3 ATMEGA8U2-MU
UBOOT SMD solder JUMPER
X1 DC21MMX
X2 BERG USB connector
Y1 16MHz
Y2 16MHz
Z1 PGB1010604 VARISTOR
Z2 PGB1010604 VARISTOR
ZIC1 ATMEGA8 MICROCONTROLLER

[JSON]

Files

This project is © Arduino™, and is published under the terms of the Creative Commons Attribution-ShareAlike 2.5 Generic licence.