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Brightness adjustment circuit composed of visible light brightness sensor LX1970
Source: InternetPublisher:jikai233 Keywords: Sensor brightness adjustment circuit Updated: 2024/09/03
The brightness adjustment circuit is shown in the figure. By changing the duty cycle of the PWM (pulse width modulation) signal, the backlight brightness can be adjusted to meet personal needs. The voltage amplitude of the PWM signal is 3.3V.
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