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[[File:X728-V2.1-interface-EN.jpg|X728 V2.1 Interface]]
Update:
*New add a buzzer controled by GPIO20
*DC jack is changed from DC5525 to DC5521.
'''X728 V2.0'''
[[File:X728-V2.0-01.jpg|700px|none|X728 V2.0]][[File:X728-V2.0-02.jpg|700px|none|X728 V2.0]]
Update:
* PIN33 (GPIO13) is replaced by the PIN37 (GPIO26) to avoid the I2S interface from v1.3 to v2.0.
'''X728 V1.3'''