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High voltage (5V for example) to the 'HV' pin
Use in a well-ventilated area and wash hands after handling
Sensitivity: ~-26dBFS
It is commonly used in digital clocks
Chip: NXP -NTG215
STM32F103C8T6 - STM32 Development Board original (The Blue Pill) WEACT Breathalyser High voltage (5V for example)The Blue Pill is a development board based on ST Microelectronics STM32F103C8T6A microcontroller that has an ARM Cortex M3 core that runs at 72MHz max. Software libraries are available that allow users to program the chip using the Arduino IDE. It is possible to use our STLink V2 device programmer to debug and download code into the board. Features Microcontroller: STM32F103C8T6 ARM 32 bit Cortex M3 CPU 72 MHz max CPU frequency Voltage from 2 V to 3.
