This solution is a flow and temperature measuring meter. It can be used in the household measurement of heat. This solution provides temperature measurement function, LCD display, automatic remote meter reading via RS-485, M-Bus instrument bus, wireless communication, strong anti-interference ability, optimal reliability, etc.

The Nano110 series provides high performance and low cost ultra-low power 32-bit ARM^® Cortex™-M0 core, runs up to 42 MHz, and supports 32-bit hardware multiplier, Low operating voltage 1.8V to 3.6V, Ultra-low power operating mode (<200uA/MHz), Power down mode (RTC+LCD On, RAM retention <10uA and RTC,RAM retention < 2.5uA), Deep Power-down mode, RAM retention (< 1uA), Flash ROM up to 128 KB and RAM up to 16 KB, High integrated RTC, LCD, 12-bit ADC, 2 MSPS conversion rate, internal RC 12 MHz OSC, and ISO7816-3 interface for smart card to reduce system BOM cost, rich peripheral I²Cx2 ,SPIx3, UARTx5, input I/O 5V tolerance, Anti-theft lock code bit, 96-bit Unique ID and 128-bit Unique customer ID, and strong anti anti-jamming ability (ESD 8kV, EFT 4kV).