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ML8011 GSM GPRS Modem User’s Manual

Page 13

3.7 Serial interfaces

The connection schematic between ML8011 and MCU/ARM shown in figure 6, Dotted line:
optional connection.

Figure 6 connect to MCU/ARM

3.8LED indication

3.8.1 Green Led is the power indication.

3.8.2 Red Led is the Working state indication.

The Working state of this LED is list in the table 6.

Table 6 Working state of the RED Led

state

Module Function

Off

The module is not running(Power Off)

64ms On/800ms Off

The module is not synchronized with network

64ms On/2000ms Off The module is synchronized with network

64ms On/600ms Off GPRS data transfer is ongoing.

Содержание ML8011

Страница 1: ...ML8011 GSM GPRS Modem User s Manual Page 1 ML8011 GSM GPRS Modem User s Manual sales eddywireless com www eddywireless biz...

Страница 2: ...WRKEY pin 9 3 4 3 Power down module using AT command 9 3 4 4 Over voltage or under voltage automatic shutdown 10 3 4 5 Restart module using the PWRKEY pin 10 3 5 Power saving 11 3 5 1 Minimum function...

Страница 3: ...vice protocols which are TCP UDP FTP and HTTP Extended AT commands have been developed for customer to use these Internet service protocols easily Table 1 Module key features Feature Implementation Po...

Страница 4: ...m 4800 bps to 115200 bps default auto baud rate Support TTL 3 3V Embed standard AT command GSM07 05 and 07 07 Phonebookmanagement Support phonebook types SM FD LD RC ON MC SIM Application Toolkit Supp...

Страница 5: ...be a single voltage source of VBAT 3 6V 4 6V it must be able to provide sufficient current in a transmitting burst which typically rises to 2A Vmax 4 6V Vmin 3 6V Vnormal 4 0V Recommend to used MIC29...

Страница 6: ...ransmitting data RI 6 O Ring indicator TTL 3 3V level it can be connected to the MCU ARM I O port indirectly If unused keep these pin open CTS 11 O Clear to sent RTS 12 I Request to sent DTR 13 I Data...

Страница 7: ...he base band part of the module and only the power supply for the RTC is remained Software is not active The serial interfaces are not accessible Operating voltage connected to VBAT remains applied Mi...

Страница 8: ...r may monitor the level of the STATUS pin to judge whether the module is power on or not If the STATUS pin is ignored pull the PWRKEY pin to high level for more than 2 seconds to turn on the module Th...

Страница 9: ...WRKEY to a high level voltage for certain time The power down scenario is illustrated as in Figure 4 Figure 4 Timing of turn off the module The power down procedure causes the module to log off from t...

Страница 10: ...itical voltage range is 3 6V to 4 6V If the voltage 4 6V or 3 3V the module would automatically shut down itself If the voltage 3 3V the following URC will be presented UNDER_VOLTAGE POWER DOWN If the...

Страница 11: ...AT CFUN command which provides the choice of the functionality levels fun 0 1 4 0 Minimum functionality 1 Full functionality default 4 Disable both transmitting and receiving of RF part If the module...

Страница 12: ...port is not accessible 3 5 3 Wake up module from SLEEP mode When the module is in the SLEEP mode the following methods can wake up the module If the DTR Pin is pulled down to a low level it would wake...

Страница 13: ...ion 3 8 1 Green Led is the power indication 3 8 2 Red Led is the Working state indication The Working state of this LED is list in the table 6 Table 6 Working state of the RED Led state Module Functio...

Страница 14: ...ML8011 GSM GPRS Modem User s Manual Page 14 4 Mechanical dimension...

Страница 15: ...ML8011 GSM GPRS Modem User s Manual Page 15 5 Product List Name Unit Quantity Describe Picture ML8011 Item 1 Module Antenna Item 1 Standard Supply...