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MT7688 Core Board Widora-BIT WIFI module

MT7688 Core Board Widora-BIT WIFI module

Description:

The Widora_Bit is a well design core board that based on MT7688AN module, it provide various configuration and breakout all the MT7688AN pins by castle hole(half hole), it is very continent embed this board to your project. It can be used in WiFi router, 3G convert to WiFi, Wireless camera, wireless audio amplifier, Ethernet adapter, wireless data storage, drone and remote control monitoring.

Specification:

Protocol and interface standard:

WiFi Standard
IEEE 802.11b/g/n
Ethernet interface
1 channel
USB2.0
1 channel
SD-XC
1
SPI
1
I2C
1
I2S
1
UART
3
PWM
4
GPIO
13

Memory:

Flash memory (7688): 32M

RAM (7688): DDR2: 64MB

WiFi RF specification:

Operating Frequency: ISM Band

Transmit Power: 18±1dbm

Communication Channel: 1- 14

Ethernet Speed: 1T1R/150Mbps

Operating Power:

Input: DC 3.3V ±0.2V

No-load Current: 130±10mA

Load Current: over 1000mA

Dimension: 33.02 x 17.78mm

Pins explanation:


Pin Name
Mark
Property
Description
A1
I2S_SDI
I
I2S data input
A2
I2S_SDO
O
I2S data output
A3
I2S_WS
O
I2S audio channel select, 0: left, 1: right
A4
I2S_CLK
O
I2S DBCLK
A5
I2C_SCLK
O
I2S BUSCLK
A6
I2C_SD
I/O
I2S BUS data
A7
VDD_FLASH
I
Flash Power, 3.3V
A8
SPI_CS1
O
SPI BUS SIGNAL
A9
SPI_CLK
O
SPI BUS CLK
A10
SPI_MISO
ISPI MISO
A11
SPI_MOSI
OSPI MOSI
A12
SPI_CS0
OSPI CS0
A13
GPIO_O
I/O
GPIO11
B1
UART_TXD0
O
UART TXD0
B2
UART_RXD0
I
UART RXD0
B3
RXI_P
A
PORT0 Network Signal Receive Positive
B4
RXI_N
A
PORT0 Network Signal Receive Negative
B5
TXO_P
A
PORT0 Network Signal Transmit Positive
B6
TXO_N
A
PORT0 Network Signal Transmit Negative
B7
GPIO14/ TXO_P
I/O
GPIO/PORT1 Network Signal Transmit Positive
B8
GPIO15/ TXO_N
I/O
GPIO/PORT1 Network Signal Transmit Negative
B9
GPIO16/ RXI_P
I/O
GPIO/PORT1 Network Signal Receive Positive
B10
GPIO17/ RXI_N
I/O
GPIO/PORT1 Network Signal Receive Negative
B11
PWM_CH0
O
PWM Channel 0
B12
PWM_CH1
O
PWM Channel 1
B13
TXD2/PWM2
O
Serial Port 2 Transmit/ PWM Channel 2
B14
RXD2/PWM3
I/O
Serial Port 2 Receive/ PWM Channel 3
B15
SD_WP
I
SD Write-Protect, 1: yes, 2: no.
B16
SD_CD
I
SD Card detection, 1: No TF card, 0: yes
B17
SD_D1
I/O
SDIO data 1
B18
SD_D0
I/O
SDIO data 0
B19
SD_CLK
O
SDIO Clock
B20
SD_CMD
O
SDIO Commend
B21
SD_D3
I/O
SDIO Data 3
B22
SD_D2
I/O
SDIO Data 2
B23
GND
P
Ground
B24
UD_P
I/O
USB DATA Positive
B25
UD_N
I/O
USB DATA Negative
C1
GND
P
Ground
C2
RF
A
RF Output Signal
C3
GND
P
Ground
C4
GND
P
Ground
C5
UART_RXD1
I
UART Data Receive
C6
UART_TXD1
O
UART Data Transmit
C7
WLED_N
O
WIFI LED, Low voltage On
C8
LINK0
O
PORT0 LED, Low voltage On
C9
GPIO42/LINK1
I/O
GPIO42/PORT1 LED, Low Voltage On
C10
GPIO41/LINK2
I/O
GPIO41/PORT2 LED, Low Voltage On
C11
PCIE_CKP0
O
PCIE BUS Clock output Positive
C12PCIE_CKN0
O
PCIE BUS Clock output Negative
C13
PCIE_RXN0
I
PCIE BUS Data Receive Negative
C14
PCIE_RXP0
I
PCIE BUS Data Receive Positive
C15
PCIE_TXP0
O
PCIE BUS Data Transmit Positive
C16
PCIE_TXN0
O
PCIE BUS Data Transmit Negative
C17
3.3VD
P
3.3V Power
C18
GND
P
Ground
C19
GPIO40/LINK3
I/O
GPIO40/PORT3 LED, Low Voltage On
C20
GPIO39/LINK4
I/O
GPIO39/PORT4 LED, Low Voltage On
C21
CPURST_N
I
CPU Reset Input, low voltage On
C22
WPS_RST_PBC
I
User Button, WPS Input
C23
REF_CLK
O
Reference clock output, Default 12MHz
C24
PERST_N
O
PCIE Reset Output (related to Boot, be careful!)
C25
GND
P
Ground

Links:

https://github.com/widora

Datasheet:

BIT3 Sch.pdf

BIT3.DXF

Widora-Bit-datasheetV04.pdf

Widora-Bit-pcblib.zip

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  • Product Code: 101767
  • Availability: In Stock
  • $19.90
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Tags: MT7688, Core Board, Widora-BI, WIFI module