Features
1. Support MP3 and MAV audio format.
2. Set to automatically loop all audio after power is available.
3. There are four-way for triggering, each line plays the corresponding audio file, in non-interference.
4. Setting different playback mode, such as power on playback(130), pulse is repeatable(030), pulse is not repeatable(430), level keep loopable(230), pulse loop playback(330).
5. No need to install the upper computer software, no need to use the downloader. Directly connected to the computer with USB cable to copy the audio files, simple and convenient.
| Pin No. | Pin Item | Functional Description | ||||
| 1 | PB7 | IO1 corresponds to the first file | ||||
| 2 | PB6 | IO2 corresponds to the second file | ||||
| 3 | VSSIO | GND | ||||
| 4 | VBAT | Powering positive | ||||
| 5 | VDDIO | / | ||||
| 6 | PC5 | SPI / FLASH DATA | ||||
| 7 | PC4 | SPI / FLASH CLK | ||||
| 8 | PC3 | SPI / FLASH CS | ||||
| 9 | USBDM | USB data cable DM | ||||
| 10 | USBDP | USB data cable DP | ||||
| 11 | PA2 | IO3 corresponds to the third file | ||||
| 12 | PA1 | IO4 corresponds to the fourth file | ||||
| 13 | DACR | Audio output right channel | ||||
| 14 | DACL | Audio output left channel | ||||
| 15 | AGND | AGND | ||||
| 16 | VCOM | Internal reference voltage | ||||
Play mode configuration description
| Trigger Mode | Operation Explanation | |||||
| Power On Playback(130) | After power-on, the device will play immediately without any triggering. | |||||
| Pulse is repeatable(030) | Press the trigger button, it will play immediately once. During the playback, pressing the button to interrupt the current playing state, and it would replay. | |||||
| Pulse is not repeatable(430) | Press the trigger button, it will play immediately once without interruption. The new trigger instruction is not valid until the last playing is completed. | |||||
| Level keep loopable(230) | Keep pressing the trigger button, and the device is playing. If it is released, the device will stop playing immediately. | |||||
| Pulse Loop Playback(330) | Press the trigger button, it would play in a loop. The playback is not affected by the trigger button switch. The playing stops only when the trigger button is pressed again. | |||||
Storage order and naming criterion for music files
The sorting in FLASH or SD card is the order in which the storage is installed. Before copying, you can add 0001,0002,0003 to the audio name to plan the order of the audio files, and then copy to the FLASH or SD card.
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