ADC Overview Function An analog-to-digital converter (ADC) is a device that converts analog signals into digital signals. Basic Concepts Resolution The number of binary bits that can be converted by a
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ADC Overview Function An analog-to-digital converter (ADC) converts analog signals into digital signals for storage and computing. In addition to the power cable and ground cable, the ADC requires onl
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Vibrator Overview Function The vibrator driver model underpinned by the Hardware Driver Foundation (HDF) makes vibrator driver development easier and faster. This model shields the interaction between
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User Authentication Overview Function User authentication is indispensable in identity authentication scenarios, such as device unlocking, payment, and app logins. The user authentication framework (U
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USB Introduction Function Overview The universal serial bus (USB) consists of a USB host and multiple USB devices. The USB host implement data transfer and port management in the USB bus, and the USB
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Touchscreen Overview Functions The touchscreen driver powers on its integrated circuit (IC), initializes hardware pins, registers interrupts, configures the communication (I2C or SPI) interface, sets
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Sensor Overview Function The sensor driver model shields the hardware difference and provides interfaces for the upper-layer sensor service to implement basic sensor capabilities, including querying t
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PIN Authentication Overview Function Personal Identification Number (PIN) authentication provides user authentication capabilities in identity authentication scenarios, such as device unlocking, payme
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Light Overview Introduction The light driver model provides APIs for the upper-layer light hardware service layer to control lights, including obtaining the light type, setting the lighting mode and b
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LCD Overview Function The Liquid Crystal Display (LCD) driver performs operations such as powering on the LCD and initializing the internal registers of the driver integrated circuits (ICs). The displ
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