The Pulse Oxi-meter is a medical monitor meter used for patients with vascular disease or respiratory disease and cardiopulmonary organ aging persons to measure the oxygen saturation (SpO2) and pulse rate. It must include an ultra-low-power microcontroller (MCU), LCD display, RTC, data storage, runs an Oxygen Saturation algorithm and provides the data upload function to PC, Pad, or Smart phone through BT4.0 BLE wireless communication with App software. Due to the need to run at very low power and long-time standby with battery powered, the Nano100 series is suitable for Pulse Oximeter applications. 

The Nano100 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, RAM retention< 2.5uA), Deep Power-down mode, RAM retention (< 1uA), Flash up to 128 KB and RAM up to 16 KB, high integrated RTC, 12-bit ADC, 2 MSPS conversion rate, internal RC 12 MHz OSC to reduce system BOM cost, rich peripheral I²Cx2 , SPIx3, UARTx5, Anti-theft lock code bit, 96-bit Unique ID and 128-bit Unique customer ID, and strong anti-jamming ability (ESD 8kV, EFT 4kV).

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