Dragino V2 MS14-S with M32 IoT Module (Seeed 102990008 /  800114001)

• OpenWrt Inside. OpenWrt is a reliable Linux distribution for embedded system. It is open source, under well developed and maintained. OpenWrt used package system, lots of powerful utility, software are maintained as packages form. Users can easily install, remove these packages to make a deep customized system. 
• Open Hardware Design. Developers have the possibility to improve or do innovation on the hardware and release a new /unique product base on requirement. 
• Low Power Consumption. Around 1 watt power consumption in working mode.
• AP, Client or Mesh mode WiFi. Can be configured in different WiFi mode for various applications. 

1. AP mode: as what a normal WiFi routers does, so other WiFi client can connect to MS14 and share its internet connection. 
2. Client mode: as what a normal PC does to connect to your existent WiFi router for internet connection. 
3. Ad-Hoc for mesh network. 

• Stable, Flexible WiFi Design. Can be configured in different WiFi mode for various applications. 

1. AP mode: as what a normal WiFi routers does, so other WiFi client can connect to MS14 and share its internet connection. 
2. Client mode: as what a normal PC does to connect to your existent WiFi router for internet connection. 
3. Ad-Hoc for mesh network. 

• Modular Design. The most complicate and difficulty parts are built as mother board. Developers focus on the MCU daughter board design only. This helps to reduce the development time, cost, risk, difficult to release a new product to test/seize the market. 
• Production Enclosure. MS14 has a Professional/Industrial enclosure which can be used directly for the market. 
• Managed by Web GUI, SSH or Serial. Built-in Web server provides convenient to use/configure/upgrade/monitor or have full control by SSH/Serial.
• Various firmware upgrade methods. Firmware can be upgraded via serial port, SSH access, GUI interface for easy maintaining. 
• Safe Mode. Robust software/hardware interface to reduce after-sale support cost. 
• 14 positions screw terminal with 5V ESD protection.
• Remote upgrade AVR daughter aboard. Daughter board can be upgraded remotely to reduce the maintaining cost and provide central management/ deployment.
• Compatible with Arduino Yun software. Reuse all the source from Arduino Yun to speed up development.

• CPU: AR9331
• DDR RAM: 64MB
• FLASH: 16MB
• 2 x 10M/100M RJ45 interface
• 1 x power input: 9 ~ 12v DC or 5v DC
• 14 positions screw terminal 
• Protocol: 802.11 b/g/n
• Frequency: 2,412 - 2,472 GHz
• Power: 100mW

M32 Module specification：

• MicrocontrollerATmega32u4
• Operating Voltage5V
• I/O voltage5V
• 3.3V output channel1
• 5V output channels2
• SRAM2.5KB
• Flash Memory32KB(of which 4KB used by bootloader)
• EEPROM1KB
• Clock Speed16Mhz
• Digital I/O pins10
• Analog input channels8
• PWM channels4
• ESD-protection(IEC 61000-4-2)
• Over Voltage Protect

M32 uses 5v power from ms14. The mega32u4 avr is powered by 5v as well. M32 provides 5V or 3.3V output power. 

• 5V: The 5V output power pin is 1+ and 6+
• 3.3V:  pin 6+ can be used for 3.3v power output, by using the VOUT_SEL jumper. 
• GND: 2 GND pins are available in 1- and 6-. 

• TWI: 2 (SDA) and 3 (SCL). Support I2C / TWI communication using the Wire library.
• External Interrupts: 3 (interrupt 0), 2 (interrupt 1). These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details. 
• PWM: 3, 6, 9, 10. Provide 8-bit PWM output with the analogWrite function.
• LED: 13. The "heart beat" LED is connected to digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off.
• Analog Inputs: A0 - A3, [A6, A8, A10, A11 (on digital pins 4, 6, 9 and 10)]. The m32 has 8 analog inputs, all of which can also be used as digital i/o. Each analog input provide 10 bits of resolution (i.e. 1024 different values). The analog inputs measure from ground to 5 volts. 
• RESET_MS14:11(PB7): Bring this line LOW to reset the AR9331 microprocessor on ms14. Resetting the AR9331 will cause the reboot of the ms14. All the data stored in RAM will be lost and all the programs that are running will be terminated. The reset feature is deactivate by default to avoid error program on 11. Solder a 0ohm capacitor on R14 or short the two ends of this resister will active this feature. 

• I2C Connector: This 1x4 (2.54mm) connector has SCL/SDA/5V/GND pin out, it can used to hook up a small I2C PCB and place into MS14. 
• J2 Connector: This connector is reserved for further process the signal on 7+ and 7- pins.

• 1x Dragino v2 mother board
• 1x NEMA 1-15 type power supply adapter
• 1x Screw Terminal
• 1x M32 Internet of Things Module

• Wiki for General Technical Guide
• Getting Start with Arduino Yun on MS14
• MS14_Schematic_v2.2.pdf
• Development Instruction.pdf
• 1:1 Ratio Component Footprint.pdf
• Source Code
• Firmware

Software:

• Dragino V2 source code at Github
• M32 Module source code, Schematic and PCB file at Github
• Linino source code for Dragino V2, compatible with Arduino YÚN at Github