- Description
- Specifications
This PCB is a compact, rugged, and energy-efficient tracking device tailored for applications like asset tracking, personal safety devices, or wearable tech. It integrates cellular, GPS, and motion detection functionalities in a lightweight and waterproof form factor. The main components are intelligently placed and optimized to reduce power consumption while ensuring high-performance communication and sensing.
Connectivity
Cellular & GNSS Connectivity
Module: Quectel MC60 (GSM/GPRS + GNSS combo)
GSM/GPRS Support: Quad-band 850/900/1800/1900 MHz for global coverage
Data Services: GPRS multi-slot class 12, coding schemes CS1 to CS4
GNSS Support: GPS, GLONASS, Galileo, QZSS with built-in LNA
Positioning Accuracy: < 2.5 meters CEP
Antenna Interface: U.FL or PCB trace antenna
SIM Slot: microSIM ( tray type)
Protocols & Features
Protocols Supported: TCP/IP (with built-in stack), HTTP/HTTPS, FTP, SSL, MQTT (for IoT communication)
SMS Functionality: Text and PDU modes; SMS storage on SIM or internal memory
Firmware Update: Supports OTA (over-the-air) firmware updates
Motion Sensing
Sensor: MC3419 3-axis accelerometer
Measurement Range: ±2g, ±4g, ±8g
Interface: I2C
Features: Activity/inactivity detection, wake-on-motion, low-power sleep modes
Power Management
Battery Type: Rechargeable Li-ion or Li-Po
Battery Capacity: 1200 mAh
Backup Time: Up to 48 hours under optimized usage
Charging Port: Type-C
Charging IC: MCP73831 with overcharge/discharge protection
Power Optimization: Accelerometer-based wake-up, GPS/GPRS auto-off during idle
Voice Calling:
Outgoing Calls: Only to a preset secure number (configurable via AT commands or firmware)
Incoming Calls: Accepts calls from any number
Outgoing SMS feature to preset number
Voice Hardware:
Microphone: MEMS or ECM mic integrated on board
Speaker: Compact onboard speaker connected via header
Audio Path: Analog audio interface of MC60 used for full-duplex voice communication
Audio & Voice Subsystem
Speaker Interface: 8Ω speaker driven through MC60 analog audio path
Microphone Interface: Connected to MIC+ and MIC– of MC60 with optional bias
Echo Cancellation and Noise Reduction: Enabled through module settings
Voice Codec: HR, FR, EFR supported for GSM audio
Mechanical & Environmental
PCB Dimensions: Approx. 45mm x 35mm (customizable)
Weight: < 30 grams (including battery)
Operating Temperature: -20°C to +60°C (extendable with industrial components)
Interfaces & Indicators
UART: For AT command control and debug
ADC : For battery level monitoring
LEDs: Status indicators for battery charging
Push Button (Optional): SOS button to trigger call and SMS, can be used for general purpose