Hardware Guide

The board is provided with:

• PMOD-Huawei

Configuration MU709S2

The MU709S2 works with auto-baudrate or baudrate fixed: - auto-baudrate: the first time you sent a data to the device, it will set its baudrate as yours. - The device starts with a fixed baudrate and it sends data about its configuration

We have configurated the device with baudrate fixed in this way:

0. Connect the board with the PC via USB
1. Launch minicom and set the baudrate to 9600
2. Send a charachter
3. Send the command: AT+IPR=115200
4. Turn off the module and set the minicom to 115200, then turn on the module
5. Set these commands to configure the LED timing:

AT^LEDCTRL=2,00000FF0,1,20,2 AT^LEDCTRL=2,0000000F,1,2,20

Useful general AT Commands

• AT+GMR: permits to know the firmware version. Actually the version is 11.652.65.00.00
• AT+CPIN?: if MU709S2/ME909S replies with READY, the SIM (or the eUICC) is correctly seen
• AT+CSQ: it is used to check the quality of the signal:

<rssi>	GSM or UTRAN Cell Signal Strength
0	≤ –113 dBm
WCDMA	1 –111 dBm
2	–30 –109 dBm to –53 dBm
31	≥ –51 dBm
99	Unknown or undetectable

Datasheet and more

Please refer to:

• the architech-board website.
• the mu709S2 documentation
• the me909s documentation