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Direct digital output
Adding a Bluetooth module interface
This Matrix Keypad 3 X 4 has 12 buttons
inside take watchdog
Type C Micro configuration for compact electronic systems
CCS811 Carbon Monoxide Gas Sensor Soldered:Without Soldered Pins Direct digital outputDescription: The CJMCU 811 is an ultra low power digital gas sensor that integrates a sensor and a CCS801 bit MCU with an analog digital converter (ADC) for detecting indoor air quality, including carbon monoxide (CO) and a wide range of Volatile Organic compounds (VOCs). Feature: Ultra low power consumption can be used in battery powered equipment High sensitivity, fast heating Intelligent algorithm calculates TVOC eCO2 values I2C signal output,
