Features:

• Implements billing functionality through the TIMER module, which counts pulses from the gas meter’s membrane measurement module or integrates the gas flow rate from the ultrasonic measurement module.

• Utilizes built-in Flash memory to store gas consumption data, timestamps, billing methods, and detailed tiered pricing standards.

• Provides real-time clock (RTC) functionality for date and time tracking.

• Connects to an LCD display via the LCD module to show gas consumption data and timestamps.

• Uses USART to connect to communication modules like NB-IoT for data exchange and real-time control of terminal devices by the platform.

• Real-time battery status detection through ADC, providing protection against overcurrent and over-temperature, and controlling the valve and buzzer alarms via GPIO.

Advantages of N32L406 Chip:

 • A 32-bit low-power Arm® Cortex®-M4 chip with a static power consumption as low as 1.5μA and dynamic power consumption of 60μA/MHz.

• Operating temperature range from -40℃ to 105℃, supporting ±4kV ESD protection to effectively prevent static interference.

• Features up to 9 timers to accommodate gas consumption data collection and calculations, along with 1 low-power timer.

• RTC supports leap year, perpetual calendar, periodic wake-up, and both internal and external clock calibration.

• Flash memory supports capacities from 128KB to 384KB, with capabilities for encrypted storage, partition management, and data protection, hardware ECC checking, 100,000 erase cycles, and 10 years of data retention, effectively protecting gas meter data from theft.

• Includes a 12-bit, 4.5Msps ADC with up to 16 channels to support battery information collection and management.

Recommended Models:

• N32L406