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  2. Hitachi HD44780 LCD controller - Wikipedia

    en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller

    The data sheet indicates that for a resistor of 91 kΩ at V CC =5 V the oscillator can vary between 190 kHz and 350 kHz resulting in wait times of 52.6 μs and 28.6 μs instead of 37 μs. If a display with the recommended 91 kΩ resistor is powered from 3.3 volts the oscillator will run much slower.

  3. I²C - Wikipedia

    en.wikipedia.org/wiki/I²C

    In AmigaOS one can use the i2c.resource component [25] for AmigaOS 4.x and MorphOS 3.x or the shared library i2c.library by Wilhelm Noeker for older systems. Arduino developers can use the "Wire" library. CircuitPython and MicroPython developers can use the busio.I2C or machine.I2C classes respectively.

  4. Liquid-crystal display - Wikipedia

    en.wikipedia.org/wiki/Liquid-crystal_display

    A diffuser sheet is placed on both sides of the prism sheet to distribute the light of the backlight uniformly, while a mirror is placed behind the light guide plate to direct all light forwards. The prism sheet with its diffuser sheets are placed on top of the light guide plate.

  5. I²S - Wikipedia

    en.wikipedia.org/wiki/I²S

    So, for example, CD Audio with a sample frequency of 44.1 kHz, with 16 bits of precision and two channels (stereo) has a bit clock frequency of: 44.1 kHz × 16 × 2 = 1.4112 MHz The word select clock lets the device know whether channel 1 (WS = 0) or channel 2 (WS = 1) is currently being sent, because I²S allows two channels to be sent on the ...

  6. Liquid crystal - Wikipedia

    en.wikipedia.org/wiki/Liquid_crystal

    The brackets denote both a temporal and spatial average. This definition is convenient, since for a completely random and isotropic sample, S = 0, whereas for a perfectly aligned sample S=1. For a typical liquid crystal sample, S is on the order of 0.3 to 0.8, and

  7. TI MSP430 - Wikipedia

    en.wikipedia.org/wiki/TI_MSP430

    The prefix word contains an added operand size bit, which is combined with the existing B/W bit to specify the operand size. One unused size combination exists; indications suggest that it may be used in future for a 32-bit operand size. [17] The prefix word comes in two formats, and the choice between them depends on the instruction which follows.