Description

GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi, Based on SIM868

Overview
1. This is a handy, low power Raspberry Pi HAT which features multi communication functionalities: GSM, GPRS, GNSS and Bluetooth.
2. It allows your Pi to easily make a telephone call, send messages, connect to wireless Internet, global position, transfer data via Bluetooth, and so on.

Features
1. Raspberry Pi connectivity, compatible with Raspberry Pi 2B/3B/3B+/Zero/Zero W
2. Support SMS, phone call, GPRS, DTMF, HTTP, FTP, MMS, email, etc.
3. Support GPS, COMPASS, Glonass, LBS base station positioning, omni-positioning
4. Bluetooth 3.0, supports data transferring through Bluetooth
5. Onboard USB TO UART converter CP2102 for UART debugging
6. 6x LEDs for indicating the module working status
7. SIM card slot for 1.8V/3V SIM card
8. RTC with backup battery holder
9. Baudrate auto detection (1200bps ~115200bps)
10. Control via AT commands (3GPP TS 27.007, 27.005, and SIMCOM enhanced AT Commands)
11. Support SIM application toolkit: GSM 11.14 Release 99
12. Come with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

GSM/GPRS

1. Band
- GSM 850/EGSM 900/DCS 1800/PCS 1900 MHz
- Quad-band auto search
- Compliant to GSM phase 2/2+
2. Emitting power
- Class 4 (2W @ GSM 850/EGSM 900 MHz)
- Class 1 (1W @ DCS 1800/PCS 1900 MHz)
4. GPRS connectivity
- GPRS multi-slot class 12 (default)
- GPRS multi-slot class 1~12 (configurable)
5. GPRS data feature
- Downlink speed: max 85.6kbps
- Uplink speed: max 85.6kbps
- Coding schemes: CS-1\CS-2\CS-3\CS-4
- Support PAP (Password Authentication Protocol) for PPP connection
- Support PBCCH
- Support USSD
6. SMS
- Support: MT/MO/CB/Text/PDU mode
- SMS storage: SIM card
7. Audio
- Voice encode/decode mode: Half Rate\Full Rate\Enhanced Full Rate\Adaptive muti rate
- Support echo cancellation
- Support noise reduction

GNSS

1. Receiver type
- 33 tracking channels
- 99 acquisition channels
- GPS L1 C/A code
2. Sensitivity
- Tracking: -165 dBm
- Cold starts: -148 dBm
3. Time-To-First-Fix
- Cold starts: 28s (typ.)
- Hot starts: < 1s
- Warm starts: 26s
4. Accuracy
- Horizontal position: <2.5m CEP

Bluetooth
1. Integrates AT commands
2. Compliant to Bluetooth specification3.0 + EDR
3. Support SPP, OPP, HFP/HSP, etc.

Misc
1. Operating voltage: 5V
2. Operating temperature: -40 degree C ~ 85 degree C
3. Storage temperature: -45 degree C ~ 90 degree C
4. Dimensions: 30.2mm x 65mm

What is on Board
1. SIM868 module
2. ZMM5V1: Regulator diode
3. SMF05C: TVS diode
4. CP2102: USB TO UART converter
5. MP1482: Power chip
6. NDC7002N: Voltage level translator
7. GPS status indicator
8. NET indicator:
- Flashes fast when the module starts up
- Flashes slowly after GSM register succeed
9. STA module working status indicator
10. SIM868 UART Tx/Rx indicator
11. Power indicator
12. SIM868 control button: press the button and hold for 1s, to startup/shutdown the SIM868
13 .Raspberry Pi GPIO connector
14. SIM card slot
15. USB TO UART interface
16. 3.5mm earphone/mic jack
17. GNSS antenna connector
18. Bluetooth antenna connector
19. GSM antenna connector
20. CR1220 battery holder: for RTC backup battery
21. UART selection switch
- A: Control the SIM868 through USB TO UART
- B: Control the SIM868 through Raspberry Pi
- C: Access Raspberry Pi through USB TO UART

Package Contents
1. GSM/GPRS/GNSS HAT x1
2. GSM Antenna x1
3. GPS External Antenna (B) x1
4. Bluetooth Antenna x1
5. USB type A plug to micro plug cable x1
6. RPi screws pack (2pcs) x1

Specifications

• Usage: Indoor & outdoor

Pros and cons

• Sustainably produced
• Ideal for everyday use
• May discolor in direct sunlight