- Description
- Specifications
This compact PCB integrates an onboard L89 GNSS module for precise multi-constellation positioning, an accelerometer for motion detection, and external flash memory for data logging. Powered via a robust 12-24V input with buck conversion, it ensures stable performance with reverse polarity and overcurrent protection. Ideal for tracking and remote monitoring applications, the board supports RS232/RS485 communication, making it suitable for industrial-grade deployments.
Connectivity
- 4G LTE Cellular Network Support
- LTE-FDD Bands: B1, B3, B5, B8
- LTE-TDD Bands: B34, B38, B39, B40, B41
- GSM/GPRS Bands: 900 MHz / 1800 MHz
- High-Speed Data Transfer
- LTE Cat 1 downlink/uplink capability
- USB 2.0 interface supporting High Speed (480 Mbps) and Full Speed (12 Mbps) modes
- Communication Interfaces
- USB 2.0 (Slave Only): For AT commands, data transmission,firmware upgrade, and debugging
- UART Interface: Optional control via AT commands
Antenna & Signal
- Antenna Type: On board 4G LTE antenna and External antenna (u.FL equivalent) connector
- Antenna Specs:
- Frequency Range: 700–2700 MHz
- Gain: Up to 8 dBi
- VSWR: ≤1.8
- Impedance: 50 Ohm
- Dimensions: 27mm x 11mm
Hardware Features
- Status LEDs: Onboard indicators for power and network status
- E SIM Support: Onboard E-SIM for seamless cellular connectivity
- Compact Form Factor: Space-efficient design for integration in embedded and industrial projects
. Interfaces
- UART: Configurable baud rate up to 230400 bps, AT command interface.
- RS485/RS232: Best for Industrial serial communication, long-distance and noise-resistant communication
- GPIO: Several general-purpose I/O pins for external device control.
- ADC: 10-bit ADC input for analog signal monitoring.
- PWM: PWM outputs for basic actuator control.
- SPI/I2C: Optional for sensor and peripheral expansion.
- Status LEDs:
4 Onboard LEDs to indicate various device states such as power, network status, GNSS fix, and user-defined alerts.
Power Specifications
- Input Voltage Range: 12V to 24V DC.
- Power Efficiency: Integrated high-efficiency regulators for stable performance.
- Sleep Current: Ultra-low power mode (<10mA in sleep).
- Battery Support: Optional Li-Ion/Li-Po battery interface with charging circuitry.
- Fuse :Protects board circuitry from overcurrent damage
- Buck convertor(MP9486AGN-Z) : Higher switching frequency Convertor efficient for DC-DC step-down voltage regulation
- Reverse polarity protection: Prevents damage due to incorrect power supply connection
Environmental & Usage
- Applications:
- Asset Tracking & Fleet Management
- Smart Metering & Remote Monitoring
- Industrial IoT Systems
- Security & Surveillance Systems
- Operating Temperature: Designed for industrial environments (extended range depends on PCB design)
Detail Extended Feature
1. Accelerometer
- Type: 3-axis MEMS Accelerometer
- Model: ICN-42605
- Features:
- Measurement Range: ±2g/±4g/±8g/±16g (configurable)
- Output: I2C/SPI Digital Interface
- Resolution: 12-bit
- Operating Voltage: 1.8V to 3.6V
- Features: Motion detection, free-fall detection, activity/inactivity recognition
2. Flash Memory
- Type: NOR Serial Flash
- Model:W25Q128JWSIQ
- Features:
- Capacity: 128Mbit (16MB)
- Interface: SPI
- Erase/Write Cycles: 100,000+
- Retention: >5 years
- Speed: Up to 133 MHz
- Use Case: Store firmware, logs, device settings, and OTA update files
3. L89 GNSS Module
- Manufacturer: Quectel
- Type: Multi-Constellation GNSS Receiver
- Features:
- Constellation Support: GPS, GLONASS, Galileo, BeiDou, QZSS
- Channels: 99 acquisition channels, 33 tracking channels
- Update Rate: 1 Hz (up to 10 Hz optional)
- Accuracy: <2.5m CEP
- Cold Start: <35s, Warm Start: <30s, Hot Start: <1s
- Interface: UART
- Voltage: 3.0V – 4.3V
- Use Case: Real-time location tracking and navigation, geo-fencing
4. Watchdog Timer
- Type: External Hardware Watchdog Circuit
- Features:
- Timeout Range: Adjustable (typ. 1s – 120s)
- Voltage: Compatible with core system voltage (e.g., 3.3V)
- Use Case: System auto-restart in case of firmware hang or deadlock
- Benefits: Increases device reliability and uptime