NOTE

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This media board only supports FireBeetle ESP32 main board at present, for other main

boards do not equipped with IIS interface.

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The flat ribbon cable of camera is relatively easy-to-break, please be careful and light in

connection. The camera shot must be opposite to the SD card slot.

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Do not support video shooting and transmission.

Specification

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Operating Voltage: 3.7V~5.5V (VCC)

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Output Voltage: 3.3V

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User-defined Button: tested by IO16(DI)

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RESET x1

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SD Card:

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Bus Interface: SDIO Protocol

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Default Transmission Rate: 10MHz

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Max. Transmission Rate: 20MHz

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Camera OV7725: (data as below is just for reference; some functions could not be realized by

ESP32 now).

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Photosensitive/Light-sensitive Array: 640*480

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Optical Size: 1/6"

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Angle of View: 25°

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SCCB Standard Interface

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Output Pixel Format: Raw RGB，RGB(RGB4:2:2 ,RGB565/555/444)，YCbCr (4:2:2)

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Image Size: VGA,QVGA and CIF to 40x30

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VarioPixel Subsampling

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Auto Image Control: auto exposure control (AEC), auto gain control (AGC), auto white balance

(AWB), auto band filter and auto black level (ABL) calibration.

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Image Quality Control: saturation, tone, gamma, clarity and anti-interference

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ISP: noise reduction and defect calibration

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Lens Shading Correction

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Auto Saturation Adjustment

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Frame Synchronization

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Fixed-focus

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NAU8822:

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DAC:94dB SNR , -84db THD

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ADC:90dB SNR , -80dB THD

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Integrated BTL loudspeaker drive: 1W @ 8Ω

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Integrated earphone drive: 40mW @ 16Ω

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Integrated programmable microphone amplifier

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Typical Sampling Rate: 8KHz, 48KHz, 96KHz, 192KHz

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Standard Video Interface: PCM and I2S

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MIC:

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Type: Electret Capacitor

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Output: analog

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Direction: omnidirectional