Category:SIMCOM
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Contents
Spec
- SIM800 GSM modules have a inbuilt Bluetooth stack compliant with 3.0+EDR & FM radio support, and the interface is accessible using AT commands.
- SIM800C GSM module is comes in a very compact size of 17.6*15.7*2.3 mm dimensions compared to SIM900/SIM900 which come in 24*24*3mm package.
- quad-band: 850/900/1800/1900MHz, dual-band: 900/ 1800MHz
- Reference link : http://simcomm2m.com
| GSM/RPRS | Package | GSM/RPRS -GPS/GNSS | Features | Other Interface |
|---|---|---|---|---|
| SIM800F (stop) | SMT-24x24 | 2G | ||
| SIM800 <- SIM900 | SMT-24x24 <- SMT-24x24 |
|
|
|
| SIM800A <- SIM900A | 68P SMT-24x24 <- SMT-24x24 |
|
| |
| SIM800C, SIM800C-DS | 42P STM-18x16 | GSM/GPRS+BT3 |
|
|
| SIM800H <- SIM800L | LGA-15.8x17.8 | GSM/GPRS+BT3 | H - *BT3.0/ *Embedded AT |
|
| SIM868 <- SIM968 | SMT 24x24 <-SMT 30x30 | GSM/GPRS+BT3+GNSS |
| |
| SIM808 <- SIM908 | SMT 24x24 <- SMT 30x30 |
|
Power compution GPS:
| |
| SIM5360E <- SIM5300E, SIM5300EA? | STM 30x30 | 3G, 2.5G, 2G, WCDMA/HSxPA/HSPA+ | ||
| SIM7100C/E/A | 4G LTE - 2G + GNSS |
| ||
| MT3339 | GPS |
|
- GPS/GNSS Module - SIM28 GPS / SIM68 GNSS
Quick Start Guide
- Attach antenna, this is important for GPRS, not very important for call o SMS message.
- Make sure sim card is inserted correct
- And as always, please don’t make an auto-dialer
- Check power input, for MIC29032, it is 5-20V, MP2315 IC is 5-24V.
- Supply V-MCU, which is the same power supply voltage to your MCU, normally 5V or 3.3V
- Pin Definiiton
VCC - board VCC and V-MCU GND - board GND TXD - board R RXD - board T
- If board us on power key button, it will auto power up, otherwise hold down power key for 3-5 seconds to boot
- Check power led should be constant on, and Net led blink status will change after network registered.
- Serial output +CPIN: READY means sim card detect correctly.
- Please try following AT commands, notice commands end up with \r\n
AT Commands and APP Note
- SMS - send or read message text
- SIMCOM_AT - Basic AT Commands see on this page
- Call call and DTMF
- SIMCOM_OPENMCU OpenMCU of SIMCOM
- GPRS
- GPS
- Bluetooth_SIMCOM
- LBS
- SD_Card_SIMCOM
Hardware Design
Schematic
Schematic of new SIM800 Mini (selling)
sim800 mini
sim800 mini mechanical size
GPRS relay board schematic
SIM800C development Board
SIM800C-Full 01
new version 03, current selling version
SIM808 Development Board
SIM808-Full 02
Board size
PCB Board size file
Schematic SIM868
01
02
03
SIM868 SCH WS
SIM868 Mini DEV Board 01
Schematic SIM800 (old)
- D2 is the Ring led. D1 is Net LED
SIM800L-Mini
SIM800C-Mini
SIM800H-Mini
SIM800 use MP1470
SIM800 to RPI
SIM800 Board Series Details
Net LED:
- Off SIM800H/L is not running
- 64ms On/800ms Off SIM800H/L not registered the network
- 64ms On/3000ms Off SIM800H/L registered the network
- 64ms On/800ms Off GPRS communication is established
Ring LED: when module receives the call or a message, this LED will be off or Flash
SIM808 Board Series Details
SIM808 Dev Board
Board specification
| No. | Description | No. | Description |
|---|---|---|---|
| 1 | sim card insert direction | 11 | IPX connector |
| 2 | battery connector | 12 | 5V power and serial interface |
| 3 | sim card protect ic | 13 | TVS over voltage protection |
| 4 | sim card slot | 14 | bluetooth connector |
| 5 | other control pins | 15 | LDO regulator |
| 6 | audio speaker and mic | 16 | LED status |
| 7 | usb connector for upgrading only | 17 | GPS power supply circuits |
| 8 | Titanium capacitor | 18 | GPS antenna connector |
| 9 | TTL 5V/3V3 switch | ||
| 10 | TTL macthing circuits |
Simple wiring and serial debugging
Only need 4 wires
send commands via serial monitor on PC
Bluetooth Firmware
- please prepare the USB socket and solder it
- Install driver and then you can flash the firmware
- Default firmware support TTS audio to speech, both firmware are provided
Documents
Tools
- File:MS USB ComPort Driver exe v1.1032.1.zip - for SIM808 USB
- GPS tool here
- Serial port tool here
Arduino library
- see the demo video here.
- Menu List all functions test code at arduino-GSM github
- GSM_Shield2.zip
- Supported library by MarcoMartines here.
SIM7600 Series
| Type | Country | GNSS | Receiver 分集接收 | Audo | Open Linux | Description |
|---|---|---|---|---|---|---|
| SIM7600E | Europe | / | / | / | / | - |
| SIM7600CE-T | China | Y | Y | Y | Y | - |
| SIM7600CE-L | China | NA | NA | NA | NA | - |
| SIM7600CE-L1 | China | NA | NA | NA | NA | old PA |
| SIM7600CE-L1C | China | NA | NA | NA | NA | - |
| SIM7600CE-JT1C | China | NA | NA | Y | NA | - |
Obsolete (outdated should NOT use)
SIM800-Mini
SIM800C-Mini dimension
SIM800C-Mini pin interface
SIM800C-Mini pin definition
SIM800H-Mini
SIM800H-Mini board interface
SIM800H-Mini dimension
Board interface
- D100 LED indicator
- CN101 6pin 2.54mm header interface
- J100 GPRS/GSM ANT
- J102 BT ANT(only for SIM800H)
- CN100 Micro SIM card socket
- C102 VRTC(Not mounted by default)
- TEST 2.8V
Common Pin Definition
- Power supply should provide sufficient current so that the module can work normally; the peak current is nearly 2A, will NOT work over 4.4V
| name | pin | mark on pcb | Description | Comment |
|---|---|---|---|---|
| GND | 1 and 6 | G | ground | |
| Vbat | 2 | V | Power range is from 3.4V to 4.4V. | Zenger diode is strongly recommended to anti surge on VBAT |
| PWRkey | 3 | K | Power down | Shorted with GND via R104 by default |
| TXD | 4 | T | Transmit Data | TTL Series data Output |
| RXD | 5 | R | Receives Data | TTL Series data Input |
SIM800C-Full Board R1-old
- Pin Definition
| Pin | Description | Pin | Description |
|---|---|---|---|
| GND | Power ground | VCC_IN | power supply pin, input DC5V-20V, used to power the board |
| RI | The kernel ringing pin | DTR | Data terminal preparation |
| TXD | module serial send pin, TTL level (not directly connected to the RS232 level) | RXD | module serial receive pin, TTL level (not directly connected to the RS232 level) |
| U2_R | module serial port 2 receive pin | U2_T | Module serial port 2 transmit pin |
| V_M | This pin is used to convert the TXD and RXD of the GSM module board to the TTL logic of the corresponding target board. This is used to convert the TXD and RXD of the GSM module board to the corresponding TTL logic | ADC | ADC detection |
| SPP | Core audio output pin | SPN | Core audio output pin |
| MC- | Core audio input pin | MC + | Core audio input pin |
| PWR | Pull down this pin to enable the module to be turned on or off | BAT | lithium battery input pin, 3.3v-4.4v |
Note
- VBAT MUST be lower than 4.4V, 4.0V is recommended, and TXD/RXD are TTL level which can be directly connected with MCU.
- Test pin, sim card voltage: Should confirm whether SIM card is inserted, and voltage test points should be 2.8V.
- Bluetooth must have enough current, USB power can not supply enough current
SIM900
Supported countries for sim900A - > click to see on right side
Schematic
SIM900 IC Pin Definition 01
SIM900 IC Pin Definition 02
SIM908 IC Pin Deifnition
SIM900 sch 01
SIM900 sch 02
SIM900 sch 03
SIM908C DIP Board
SIM908 Mini Board R1.5 schematic
SIM908 Mini Board R1.5 board pins
Pin functions of SIM908
- Pin RI: can indicate the incoming call with a TTL signal, this can also connect to a MCU port, it is connected to Net1 onboard LED too.
- Board provide VCHG battery charge pin: as well as a temperature check pin for battery, when a lithium battery attach between pin VCHG and GND, it will be charged by a provided 4.2 volt.
SIM908 Dev. Board
Configuration
| Name | Description |
|---|---|
| SW101 | Power On/Off |
| GSM PORT | Serial （AT command input，GPRS data input） |
| GPS PORT | GPS debug test |
| LED D200 | Power indication LED |
| LED D201 | Working status indication LED |
| CN102 | USB Port |
| J103 | GSM Antenna Port |
| J100 | GPS Antenna Port |
Reference voltage test point
| Reference voltage test point | Voltage |
|---|---|
| Test Point 1 | 3.3V |
| Test Point 2 | 5.0V |
| Test Point 3 | 4.0V |
| Test Point 4 | 2.8V |
SIM908 Mini Board
Status of On-board LEDs
| Name | Description |
|---|---|
| Net1 | connect to pin RI, keep off when power on, will light on when there is an incoming call |
| Pwr | Power status LED, keep constantly on |
| Net | inform the network status, quick blink when network not yet registered or problematic, keep slowly blink when network registered. |
Updates
- Version 1.1: * Change main power LDO, may have better performance * Add extra power pins and Uart pins * Fit into a case design.
- Version 1.2: Add extra logic leveled UART pins for arduino or Raspbery Pi such 5V or 3v3 devices
Documents
| File | Model | Type | Version |
|---|---|---|---|
| SIM908_Hardware Design_V1.06 | SIM908 | HD | 1.06 |
| Sim908 General Specification | SIM908 | SPEC | - |
| SIM908 AT commands 1.02 | SIM908 | AT-commands | 1.02 |
| Eagle Library link | SIM908 | LIB | - |
| SIM908 EVB Schematics | SIM908 | HD-design file | - |
Video tutorial
Pages in category "SIMCOM"
The following 10 pages are in this category, out of 10 total.
