heat meter

This solution is a flow and temperature measuring instrument that can be used to measure heat at home. This solution provides temperature measurement function, LCD display, automatic remote meter reading through RS-485, M-Bus instrument bus, wireless communication, and anti-interference capability. Strong and optimal reliability and other advantages. The Nano110 series provides high-performance, low-cost, ultra-low power consumption 32-bit ARM® Cortex™-M0 core, operating speed up to 42 MHz, built-in 32-bit hardware multiplier, low operating voltage 1.8V~3.6V, ultra-low power operation mode (< 200uA/MHz), power-down mode (real-time clock + LCD display, data storage < 10uA), (real-time clock, data storage < 2.5uA), deep power-down mode (data storage < 1uA), flash memory up to 128kB and memory up to 16kB, highly integrated real-time clock, LCD drive controller, 12-bit ADC conversion rate up to 2Msps, built-in 12MHz RC oscillator, and ISO7816-3 smart card interface to reduce system BOM cost. Rich peripheral interfaces I²Cx2, SPIx3, UARTx5, I/O accepts 5V input voltage, anti-theft copy lock code function, 96-bit UID chip unique code, 128-bit UCID customer unique code, strong anti-interference ability (8kV ESD, EFT 4kV) .