Seeeduino v4.2 copy

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Description

Seeeduino V4.2 is an Arduino-compatible board, which is based on Atemga328P MCU. There're so many Arduinos and Arduino-compatible boards in the world, and we think that Seeeduino V4.2 is one of the best Arduinos, Seeeuino V4.2 is much more stable, easy-to-use and even good looking. Seeeduino V4.2 is based the Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter, which means that the board ca basically work like an FTDI chip.You can program the board via a micro-USB cable, if you have an Android phone, you can find a micro-USB cable easily. Also, you can power the board via a DC Jack input, 7 to 15V is acceptable. There's a switch to choose the system supply voltage, 3.3V or 5V, which is very useful if you want to set the system to 3.3V to save power. Finally, the three on-board Grove interface can make your board connect to Groves easily. Want to make something awesome, maybe just a Seeeduino V4.2 and some Groves is enough.

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Hardware Overview The Image below is the hardware overview of the Seeeduino V4.2. enter image description here LED-D13 A led connect to D13, can be used as an indicator

USB Input Port used to connect the board to your PC for programming. Micro USB is the ubiquitous version of USB, found in most Android phones, and other devices. You probably have dozens of these cables laying around your house.

RX/TX Indicator The TX and RX LED indicators work automatically, they let you know when the board is sending or receiving information respectively.

System Power Switch Switch used to change the logic level and power output of the board to either 5V or 3.3V. Nowadays many new and great sensors are being developed to work with 3.3V, with other *duino boards you would need to place a logic level converter between the board and these sensor(s), with the Seeeduino V4.2 board all you have to do is slide the switch!

DC Input The DC power jack allows your Seeeduino board to be powered from a wall adapter so that you can supply more power to your project if needed, for example when using DC motors or other high power devices. The DC input can be 7V-15V.

Reset This button is conveniently placed on the side to allow you to reset the Seeeduino board even when a shield placed on top. This isn't the case in other duino boards where the button is placed on top making it hard to access.

Power Pins & Analog Pins Just like the Extra Header Digital Pads, these extra connections are something we've personally come to realize people need in their projects, especially the power connections if you want to power more than one sensor/device without the use of a breadboard.

Grove Connectors SeeedStudio has a variety of sensors/devices that can make use of this I2C or UART connection. In addition, we sell independent Grove connectors to help you make our own sensor connections. The I2C Grove connector is also connected to analog pin A4 and A5 for SDA and SCL respectively if you would like to use those pins instead. The UART Grove connector is connected to digital pins 0 and 1 for RX and TX respectively.

U1 ICSP This is the ICSP connection for the ATmega328P-MU, it is located in the standard ICSP/SPI position for Arduino Uno, Due, Mega, and Leonardo compatible hardware (e.g. shields) that may use this connector. The SPI pins in this port: MISO, SCK, and MOSI, are also connected to digital pins 12, 13, and 11 respectively just like those of the Arduino Uno.

USB 2 Uart Pinout of USB-2-Uart

Extra Header Pads (Digital) Sometimes it is very convenient to connect a sensor/device to your board directly instead of going through a breadboard, or perhaps you want to solder the sensor directly to the board once you've completed your project, or maybe you want to monitor the output of the pins while they're been used by other devices. In any cases we have added these extra pads to help you along the way.

From:http://www.seeedstudio.com/wiki/Seeeduino_v4.2

Documents

Seeeduino v4.2 copy

Seeeduino v4.2 copy

BOM

ID Name Designator Footprint Quantity
1 10uF C16,C45,C3,C4,C20 C0805 5
2 CJ2305 Q16,Q3,Q4 SOT23 3
3 100nF C10,C17,C9,C15,C48,C7,C18,C43,C41,C14,C11,C19 C0603 12
4 10nF C13,C23,C24 C0603 3
5 RED RX,TX,RST LED-0603 3
6 16MHz X1,X2 2P-SMD-5X3.2 2
7 1K R4,R3,R19,R10,R9,R7,R15,R16 R0603 8
8 GREEN PWR LED-0603 1
9 10K R5,R22,R25 R0603 3
10 blue L LED-0603 1
11 DNP PC5,PC2 8P-2.54 2
12 DNP PC4 6P-2.54-6535MIL 1
13 BUTTON-4P-REINFORCE RESET 4P-SMD-7X3.5X3.5H 1
14 2.7K_1% R24 R0603 1
15 DNP C47 C0603 1
16 22nF C42 C0603 1
17 10uF C46 C1206 1
18 22uF C5,C2 ELECTRO-SMD-B-4.8MM 2
19 30K R1 R0603 1
20 3.3K R2,R23 R0603 2
21 100K R17,R21,R13,R14 R0603 4
22 0R R6 R0603 1
23 510R_1% R20 R0603 1
24 22uF_16V C22 C1206 1
25 1uF C21 C0603 1
26 DNP D2 SOD123 1
27 PAD-TEST-POINT TP1,TP2,TP3,VIN,VIN4,VIN5,VIN6,D-,D+,U5V,GND,VIN1,VIN2,VIN3 TP_4545 14
28 24K R26 R0603 1
29 SWITCH-2CH-6P-2.54 SW1 6P-SMD-2CH-2.54-3.5X7.2 1
30 DC Power Jack J1 DC-404 1
31 PPTC-0.5A F1 F1206 1
32 1N5819 D1 D2010 1
33 22pF C6,C8,C12,C27 C0603 4
34 ATMEGA328P U1 MLF32X 1
35 4P-LEADED-2.0 UART,I2C,ANALOG 4P-LEADED-2.0 3
36 SEEEDSTUDIO-OPEN-SCH-FRAME U$6,U$1,U$8,U$23 SEEEDSTUDIO-PCB-FRAME 4
37 Micro USB USB MICRO-USB 1
38 DNP PC1 10P-2.54 1
39 22R R11,R12 R0603 2
40 CJA1117B-3.3 U4 SOT-89 1
41 MP1496DJ-LF-2 U2 TSOT23-8 1
42 10R R8 R0603 1
43 470R,2A L6,L1 L0805 2
44 MMBT3906LT3G Q1,Q2 SOT23 2
45 DNP J3 5P-2.54 1
46 ARDUINO-38P U3 ARDUINO-38P 1
47 ATMEGA16U2 U5 QFN32 1
48 PAD-MARK P1,P2,P3,P4 ROUND-MARK-1.0 4
49 10uH L2 L5040S 1

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