The DWM-AR9331 is a minimal system which installed with OpenWrt Linux system and support 2.4G WiFi It is compatible with 802.11b/g/n.widely use as an IoT gateway core modules.
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The DWM-AR9331 is a minimal system which installed with OpenWrt Linux system and support 2.4G WiFi It is compatible with 802.11b/g/n has rich interface such as Ethernet, USB, UART and plenty of GPIOs and use small outline package, it is used widely in mini routers and IoT projects.
| Pin Number | Pin Name | Pin Description |
| 1 |
VDD33
|
DC 3.3V
|
| 2 | VDD33 |
DC 3.3V
|
| 3 | GND | Ground |
| 4 | GND | Ground |
| 5 |
GPIO26
|
standard GPIO Port |
| 6 |
GPIO12
|
standard GPIO Port |
| 7 | GPIO27 | standard GPIO Port , SYSTEM LED |
| 8 |
GPIO11
|
Internal 10K drop-down resistor to ground, default WIRELESS LED function, high-level effective |
| 9 |
GPIO17
|
Internal 10K pull-up resistor to 2.6 v, default to Wan LED function, low level effective |
| 10 |
GPIO16
|
Internal 10K pull-down resistor to ground, standard GPIO Port |
| 11 | GND | Ground |
| 12 |
GPIO15
|
INTERNAL 10K drop-down resistance to ground, default RESET/FACTORY NEW KEY function, high-level effective |
| 13 | GPIO14 | Internal 10K pull-down resistor to ground, standard GPIO Port |
| 14 |
GPIO13
|
Internal 10K pull-up resistor to 2.6 v, default LAN1 LED function, low-level effective. |
| 15 |
GPIO01
|
Internal 10K pull-up resistor to 2.6 v, standard GPIO Port |
| 16 |
GPIO00
|
INTERNAL 10K drop-down resistance to ground, standard GPIO Port |
| 17 | GND | Ground |
| 18 |
UART_RX
|
Serial RX (for general debugging) |
| 19 | UART_TX | Serial TX (for general debugging) |
| 20 |
GPIO20
|
Standard GPIO Port or I2S SD pin function, default to GPIO |
| 21 | GPIO19 | Standard GPIO Port or I2S WS pin function, default to GPIO |
| 22 | GPIO18 | Standard GPIO Port or I2S CK pin function, default to GPIO |
| 23 | GPIO21 | Standard GPIO Port or I2S MCK pin function, default to GPIO |
| 24 | GPIO22 | Standard GPIO Port or I2S MICIN pin function, default to GPIO |
| 25 | GND | Ground |
| 26 | RX4_P | Ethernet port 4 receiving positive end |
| 27 |
RX4_N
|
Ethernet port 4 receiving negative end |
| 28 |
TX4_P
|
Ethernet port 4 transmitting positive end |
| 29 |
TX4_N
|
Ethernet port 4 transmitting negative end |
| 30 |
VDD20
|
Ethernet Power supply |
| 31 |
RX0_P
|
Ethernet port 0 receiving positive end |
| 32 |
RX0_N
|
Ethernet port 0 receiving negative end |
| 33 |
TX0_P
|
Ethernet port 0 transmitting positive end |
| 34 |
TX0_N
|
Ethernet port 0 transmitting negative end |
| 35 | GND | Ground |
| 36 |
USB_N
|
USB negative port |
| 37 |
USB_P
|
USB positive port |
| 38 | GND | Ground |
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The DWM-AR9331 is a minimal system which installed with OpenWrt Linux system and support 2.4G WiFi It is compatible with 802.11b/g/n.widely use as an IoT gateway core modules.
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