SIM868 mini Development Board for 2G/GNSS/GPS applications


  • ‌‎Abundant software functions: DTMF, MMS, MUX
  • Low Power consumption
  • Embedded TCP/UDP protocols
  • Multi-constellation GNSS receiver support: GPS, GLONASS, BeiDou

$ 12.9

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Description

The SIM868 Mini DB Is a compact and integrated module designed specifically to be used on products and save a lot of time handling GSM & GNSS power, RF circuits and etc. The SIM868 EVB (Evaluation Board) exposes the SIM868 module, a complete Quad‑Band GSM/GPRS cellular module with integrated GNSS (GPS/GLONASS/BDS) in an easy‑to‑use board form. The EVB presents the module’s LCC+LGA form factor and standard interfaces (UART, USB2.0, GPIO, etc.) on accessible connectors and test points, so you can prototype, integrate, and validate cellular + satellite‑navigation functions quickly without custom PCB development.

 

Features

  • Cellular & GNSS combined: Quad‑Band GSM/GPRS plus integrated GNSS (GPS/GLONASS/BDS) on one board.
  • Multiple interfaces: Exposed UART, USB2.0, GPIO and other common signals for flexible integration.
  • Compact form factor: LCC+LGA module footprint supported; EVB provides pads and connectors for rapid testing.
  • Easy integration: Industry‑standard interfaces and abundant extension pins simplify connecting sensors, microcontrollers, or host systems.
  • Development friendly: Test points, power management, and example connections speed up evaluation and firmware development.

 

Specifications

  • Cellular: Quad‑Band GSM/GPRS (supports standard GSM frequencies)
  • GNSS: GPS, GLONASS, BDS support for accurate satellite navigation and positioning
  • Interfaces: UART, USB2.0, GPIO (plus additional extension pins exposed on the EVB)
  • Module package: LCC + LGA form factor (compact footprint)
  • Connectivity: Designed to operate wherever cellular and GNSS signals are available

 

Applications

  • Asset tracking and fleet management
  • Portable and wearable GPS devices
  • M2M/IoT telematics and remote monitoring
  • Personal locators and safety devices
  • Any project requiring combined cellular data and satellite positioning

 

Components

PinOut

 

Pin Describtion

NO. Name Silkscreen Comment
P1-1 Request to send RTS You can use it as an output and input.
P1-2 VRTC VRTC Power supply for RTC when VBAT is not supplied for the system. Charging for backup battery or golden capacitor when the VBAT is applied.) For the allowed voltage and current values ​​for this pin, see the bottom of the table.)
P1-3 RXD RX Receive data
P1-4 TXD TX Transmit data
P1-5 DCD DCD Digital output
P1-6 DTR DTR Digital input
P1-7 GPS-TX GPSTX Transmit data
P1-8 GPS-RX GPSRX Receive data
P1-9 UART-TX U TX Transmit data
P1-10 UART-RX U RX Receive data
P2-1 Ground GND
P2-2 CTS CTS Clear to send
P2-3 RI RI Ring indication
P2-4 ADC0 ADC General purpose analog to digital converter. Vmax=2.8V, Vmin=0V
P2-5 SPK1P SPP Channel 1 positive voice output
P2-6 SPK1N SPN Channel 1 negative voice output
P2-7 MICN MICN negative voice input
P2-8 MICP MICP Positive voice input
P2-9 Ground GND
P2-10 Power +5 Main power supply of module Make sure that supply sufficient current in a transmitting burst typically rises to 1.6A. Vmax=4.8V, Vmin=5.5V

VRTC pin voltage: VImax=3.3V, VImin=1.5V, VInorm=2.8V
VOmax=3V, VOmin=2V, VOnorm=2.8V IOmax=2mA Iin≈10uA
Hint: make sure the power supply voltage is stable. The board to power up and turn on automatically without the need for a turn-off function.

 

Dimentions

 

Benefits of using the EVB

  • Faster design cycles: Validate RF, GNSS and interface integration without designing a custom PCB.
  • Lower development cost: Save time and expense by using the EVB for prototyping and firmware validation.
  • Easier debugging: Accessible connectors and test points make troubleshooting and signal measurement straightforward.
  • Flexible experimentation: Quickly test different host controllers, power setups, or peripheral configurations.
  • Seamless tracking capability: Built‑in GNSS plus industry‑standard interfaces let you track assets reliably at any location with signal coverage.

The SIM868 EVB therefore helps you develop GNSS‑enabled cellular products more easily and faster while reducing integration risk and initial cost.

 

Development Board Configuration

The detailed assignment of the peripheral interfaces on the Development board is as follows:

NO. Name Silkscreen Comment
1 Sim card case J1 4FF SIM Card 12.3* 8mm
2 External Bluetooth Antenna BT ANT Johanson Bluetooth Antenna
3 External GNSS Antenna GSM ANT UFL ANTENNA
4 External GSM Antenna GNSS ANT UFL ANTENNA
5 10pin P1-P2 header 2.54mm
6 USB USB PORT USB interface which can be used for debugging and upgrading firmware;
7 jumper R8,R3 Short circuit to connect the internal GPS to the internal UART module.

The Development board has 2 functional indication LEDs, as follows:

  • D1: NETLIGHT
  • D2: Power indication LED

 

Downloads

SKU: E0712 Category: Brand:

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