SIM868

The SIM868 chip is a GSM/GPRS+GNSS module. Equivalent products include:
- SIM800L: Basic GSM/GPRS (no GNSS).
- SIM7600: 4G LTE with GNSS.
- SIM7000: NB-IoT/LTE-M with GNSS.
- SIM5320: 3G with GNSS.
- Quectel M65: GSM/GPRS+GNSS.
- Neoway M660: GSM/GPRS+GNSS.
For 4G alternatives, consider Quectel EC25 or SIM7600. Choose based on network needs (2G/3G/4G/NB-IoT) and GNSS requirements.

The SIM868 is a versatile GSM/GPRS+GNSS module with these key features:
- Quad-band GSM/GPRS (850/900/1800/1900MHz) for global connectivity.
- GNSS Support: Built-in GPS/GLONASS/BeiDou for precise positioning.
- Bluetooth 4.0 for short-range wireless communication.
- Dual-mode (TCP/IP & UDP), supporting HTTP, FTP, MQTT, and more.
- Low Power: Supports sleep modes (1.5mA in sleep).
- Rich Interfaces: UART, SPI, I2C, ADC, GPIOs, and PWM.
- SMS & Voice: Supports calls, SMS, and DTMF detection.
- Voltage Range: 3.4V–4.4V (typical 4V).
- Compact Size: 17.6 × 15.7 × 2.3 mm.
Ideal for IoT, tracking, and M2M applications.

The SIM868 module features a 148-pin LCC package, integrating GSM/GPRS, GPS, and Bluetooth functionalities. Key functions include:
- Power Supply (VCC, GND): 3.4V–4.4V input.
- Serial Communication (UART): Primary interface for AT commands (TXD, RXD).
- SIM Card Interface (SIM_DATA, SIM_CLK, SIM_RST): Supports 1.8V/3V SIM cards.
- GPS (GPS_RX, GPS_TX): Dedicated UART for GNSS positioning.
- Bluetooth (BT_RX, BT_TX): UART for Bluetooth communication.
- Audio (MIC+, MIC-, SPK+, SPK-): Voice call support.
- GPIOs & ADC: Configurable pins for general I/O or analog input.
- Network Status (NETLIGHT): Indicates network activity.
Compact and multifunctional, the SIM868 is ideal for IoT, tracking, and communication projects.

The SIM868 is manufactured by SIMCom Wireless Solutions, a Chinese company specializing in IoT and M2M (Machine-to-Machine) communication modules.
SIMCom is a subsidiary of Sunsea AIoT Technology Co., Ltd. and is known for producing GSM/GPRS, 3G, 4G, NB-IoT, and GNSS modules. The company focuses on providing reliable, cost-effective wireless solutions for industries like automotive, smart metering, and asset tracking.
The SIM868 is a quad-band GSM/GPRS module with integrated GPS/GLONASS/BDS, widely used in IoT applications requiring cellular and positioning capabilities.
SIMCom is recognized for its global presence and partnerships with major chipset providers like Qualcomm.

The SIM868 module is widely used in:
1. IoT Devices – Remote monitoring, smart agriculture, and asset tracking.
2. Telematics – Vehicle tracking, fleet management, and GPS navigation.
3. M2M Communication – Industrial automation and remote control systems.
4. Security Systems – Alarm notifications and emergency SOS services.
5. Wearables – Health monitoring and personal tracking devices.
6. Smart Meters – Utility monitoring (electricity, water, gas).
7. Mobile POS – Wireless payment terminals.
Its GSM/GPRS, GPS, and Bluetooth capabilities make it versatile for wireless communication and location-based applications.

The SIM868 module comes in a LCC (Leadless Chip Carrier) package, measuring 22.5mm × 23.5mm × 2.7mm. It features SMT (Surface Mount Technology) pads for soldering onto PCBs, ensuring compact integration. The package includes 148 gold-plated pads for reliable connectivity. It supports quad-band GSM/GPRS and GNSS (GPS/GLONASS/BDS). Suitable for IoT, M2M, and tracking applications.