SIMCom SIM900 EVB, SIM900D EVB, SIM800E EVB GSM Module EVB Kit User Guide
Below you will find brief information for SIM900 EVB, SIM900D EVB, SIM800E EVB. SIM900 EVB is a development kit for the SIM900, SIM900D and SIM800E GSM modules. The EVB allows you to test the modules in a variety of applications. With the EVB, you can test the modules in various scenarios such as making calls, sending SMS, and accessing the internet. The EVB is easy to use and provides a variety of test points to help you with your development. The SIM900 EVB is a valuable tool for anyone who is developing products with GSM modules.
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SIM900_EVB kit_
User Guide_V1.04
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Document Title:
SIM900 EVB kit User Guide
Version:
1.04
Date:
2011-08-23
Release
Status:
Document Control ID:
SIM900_EVB kit_User Guide_V1.04
General Notes
SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers. SIMCom has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession.
Furthermore, system validation of this product designed by SIMCom within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications supplied herein are subject to change.
Copyright
This document contains proprietary technical information which is the property of SIMCom Limited., copying of this document and giving it to others and the using or communication of the contents thereof, are forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in the event of grant of a patent or the registration of a utility model or design. All specification supplied herein are subject to change without notice at any time.
Copyright © Shanghai SIMCom Wireless Solutions Ltd. 2010
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Contents
Figure Index
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Version History
Data Version Description of change
2009-12-08 1.01 Origin
2010-07-01 1.02 §6.1 Add notice：You should equip four sets of screws for better grounding to achieve a better performance.
Author
Lee
Jerry
2010-12-22 1.03
2011-08-23 1.04
§6.2 Add the Hyper Terminal setting.
Update the figures: 1,2,6,7,10,11,12,13
§1 Update the discripiton. G: Module TE interface
§2 Add the chapter 2 EVB APPLITION
Jerry zhaojuntao
SCOPE
This document describes how to use SIM900 EVB to do test; user can get useful info about the SIM900 EVB quickly through this document.
This document is subject to change without notice at any time.
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1. SIM900 EVB
Figure 1: EVB TOP view
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Figure 2: EVB BOTTOM view
A: DC jack
B: MAIN serial port
C: DEBUG serial port
D: SIM card holder
E: Test point
F: Antenna fix hole
G: Module-TE interface ( The interface compatible with SIM900-TE , SIM900D-TE and SIM800E-TE)
H: Module fix hole
I: Reset key
J: Power key
K: Charge switch
L: Download switch
M: Power switch
N: Headphones jack
O: Headset jack
P: Line in jack
Q: LED indicator
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2. EVB APPLICATION
SIM900-EVB can work with the SIM900, SIM900D and SIM800E modules. The Module-TE interface of
EVB is compatible with SIM900-TE, SIM900D-TE and SIM800E-TE. The modules supported by
SIM900-EVB is listed as below:
1. SIM900
2. SIM900D
3. SIM800E
3. EVB Accessory
Figure 3: EVB Accessory
A: Antenna
B: Antenna cable
C: 5V DC adapter
D: Serial Port cable
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4. Accessory Interface
4.1 Power Interface
Pin Signal
Figure 4: Power Interface
I/O Description
5V/2.0A DC source input
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4.2 Audio Interface
Figure 5: Audio Interface
Headset interface:
Pin
1
2
3
4
Signal
MIC1P
SPK1P
MIC1N
SPK1N
I/O
I
O
I
O
Description
Positive microphone input
Positive receiver output
Negative microphone input
Negative receiver output
Earphone interface:
Pin Signal Input/Output
5 MIC2P&SPK2P I/O
Description
Auxiliary audio input/output
Line in interface:
Pin
6
Signal
Line in R/L
Input/Output
I Line in inputl
Description
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4.3 SIM card interface
Figure 6: SIM card interface
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4.4 Antenna Interface
4.5 Serial port Interface
Figure 7: Antenna Interface
Figure 8: Serial Ports
Serial Port 1——MAIN Interface
Serial Port 2——DEBUG Interface
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Main Interface:
Pin Signal I/O
1 DCD O
2 TXD O
3 RXD I
4 DTR I
5 GND
7 RTS I
8 CTS O
9 RI O
Description
Data carrier detection
Transmit data
Receive data
Data Terminal Ready
GND
Request to Send
Clear to Send
Ring Indicator
Debug Interface:
Pin Signal I/O
2 DEBUG_TX O
3 DEBUG_RX I
5 GND
4.6 LED Indicator
Description
Transmit data
Receive data
GND
Figure 9: LED Indicator
Working state of LED as list:
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Name
Q1
Q2
Description
Power ON/OFF indicator
Module status indicator
STATUS
Bright：EVB Power ON;
Extinct: EVB Power OFF
Bright: Module runs normally
Extinct: System is powered down
Q3 GSM_NET
Blinking at a certain frequency according various GSM net status
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5. Test Interface
5.1 J103
Figure 10: Test interface overview
Figure 11: J103 Interface
J103 Interface Pin List:
Pin Signal I/O
1 DISP_D/C O
2 DISP_CS O
3 DISP_CLK O
4 DISP_DATA O
5 GPIO12 I/O
Description
Display data or address select
Display select output
Display clock output
GPIO
6 ADC I
7 GPIO11 I/O
8 TEMP_BAT I
GPIO
ADC input
SIM detect input 9 SIMPRESENCE I
10 PWM1 O
11 SDA I/O
12 SCL O
I2C BUS DATA
I2C BUS CLOCK
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13 GND / GND
14 PWM2 O
5.2 J201
Figure 12: J201 Interface
J201 Interface Pin List:
Pin
Signal I/O
1 TXD O
2 RXD I
3 DCD O
4 RI O
5 CTS O
6 GND /
7 DTR I
8 DEBUG_RX I
9 RTS I
10 DEBUG_TX O
Description
Transmit data
Receive data
Data carrier detection
Ring Indicator
Clear to Send
GND
Data Terminal Ready
Request to Send
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5.3 J104
Figure 13: J104 Interface
J104 Interface Pin List:
Pin Signal I/O
1 GPIO10 I/O
2 GPIO5 I/O
3 GPIO9 I/O
4 GPIO4 I/O
5 GPIO8 I/O
6 GPIO3 I/O
7 GPIO7 I/O
8 GPIO2 I/O
9 GPIO6 I/O
10 GPIO1 I/O
11 PWRKEY_OUT O
12 PWRKEY I
13 VDD_EXT POWER
14 VBAT POWER
Description
General purpose input and output
POWER KEY OUT
POWER KEY IN
VEXT
POWER
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6. EVB and Accessory
The EVB and its accessory are equipped as the Figure 14
Figure 14: EVB and Accessory
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7. Illustration:
7.1 Power on module:
(1) Connect the Module-TE to the 60pins connector on SIM900 EVB, plug in 5V DC adapter, switch S105 to “ON” state; keep S101 and S102 at ”OFF” state,
(2) Press the PWRKEY for more than 1 second and then release, the module power on.
After the module is powered on, the light Q3 will flash at a certain frequency. Through the state of LED, you can judge registering status of the module. For detailed description, please refer to the module HD spec.
Note: You should equip four sets of screws for better grounding to achieve a better performance.
7.2 Registering Network and making a call
(1) Connect the antenna to the Module-TE, insert SIM card and earphone.
(2) Connect the serial port cable to the MAIN serial port; Open the Hyper Terminal (AT command windows) on your computer.
First, check the serial port number:
My computer (right click) →Manage → Device Manager → Ports (COM&LPT)
Second, use the Hyper Terminal to call the module as following: a. Open the HyperTerminal
START→ All Programs → Accessory →Communication → HyperTerminal.
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b. Configure the serial port number
c. Set the baud rate and flow control
User can set the baud rate from 1200bps to 115200bps, and the flow control set to “None”
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(3) Act on the step of running which mentioned above, power on the module, typing the AT command in the
HyperTerminal, and then the module will execute its corresponding function.
a. Connect the module.
Click the “call” icon. b. Typing the AT command. When module is powered on with autobauding enabled, user must firstly send “AT” to synchronize the baud rate. The default setting of the module is autobauding. c. Use AT command to make a call.
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7.3 Downloading
Connect the serial port cable to the MAIN serial port, plug 5V DC adapter, open the download tool and click the
START key, switch the S105 and S102 to “ON” state. An example of SIM900 is show as below.
7.4 Turn off
Turn off the module: press the PWRKEY for about 2 seconds, the module will be turned off.
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Contact us:
Shanghai SIMCom Wireless Solutions Ltd.
Add: SIM Technology Building，No.633，Jinzhong Road，Changning District，Shanghai P.R. China
200335
Tel: +86 21 3235 3300
Fax: +86 21 3235 3301
URL: www.sim.com/wm
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Key Features
- Supports SIM900, SIM900D and SIM800E modules
- Provides test points for various applications
- Includes 5V DC adapter, antenna and serial port cable
- Easy to use and provides a variety of test points
- Can be used to test modules in a variety of scenarios
- Provides a valuable tool for anyone who is developing products with GSM modules
Frequently Answers and Questions
What modules does the SIM900 EVB kit support?
What are the test points provided by the EVB kit?
What are the accessories included in the EVB kit?
How do I use the EVB kit to test the SIM900 module?
What is the purpose of the EVB kit?
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