DIY music greeting cards/gift wrapping ready-to-use Bluetooth audio playback board module

• NO1   Speaker interface: It can be directly connected to the speaker, and it is recommended to use 8Ω1W.
• NO2   Power terminal: To supply power to the whole product, 3.6V~5.5V is recommended.
• NO3   USB interface:

1. Can be used to power the product.
2. The external U disk can be used to replace the product proceduresand copy the U disk voice content to Flash.

• NO4   Low trigger interface: External contact product and give the microcontroller a low level signal when triggered. For example: photoresistors, Hall devices, human sensors, etc.
• NO5   High trigger interface: External contact product and give the microcontroller a high level signal when triggered.

For example: photoresistors, Hall devices, human sensors, etc.

• NO6   

1. Delete: Long press 2S to delete the last voice.
2. Next song: Short press to play the next voice, when the power failure is invalid.
3. volume: Double click to increase the volume, a total of 4 levels, 4 levels to increase to 0.

• NO7

1. Sound recording: Long press 2S to start recording, short press to end recording during recording.
2. Play / Stop: Short press to start playing voice, short press to stop playing during playback.

Description of recording time and recording method

Recording time:

• 3 minutes: When connecting to Bluetooth to record a song, it can record a duration of 3 minutes;
• 9 minutes: MIC recording time is 9 minutes.

Recording method:

• Bluetooth recording: After the mobile phone is connected to Bluetooth (default name: BT_CARD), when playing a song, press the record button to record the song played by the mobile phone.
• MIC recording: When not connected to Bluetooth, press the recording button to start recording.

Play mode description

Loop mode

Level hold trigger Loop playback can be interrupted,Level hold trigger Loop playback can not be interrupted

no loop mode

Power on and play once. Play once when triggered, and stop playing when finished.

Playback performance Introduction for different sensors or triggers

• Touch : No loop: Touch to play once to stop playing automatically, touch again to stop playing halfway.
• Button ：No loop: Press once to play and stop playing automatically, and press again to stop playing midway.
• Light sensor:  No loop: It will automatically stop playing once when it sees light, and it will stop playing immediately when the light is blocked during playback.
• Loop: Repeatedly play the song with the light on all the time, block the light during playback, and stop looping after the current voice is played.
• Reed switch:  No loop: The trigger is to play once and stop automatically, and stop immediately when disconnected.  Loop: When triggered, the song repeats and loops, and it stops playing immediately when it is disconnected. / When triggered, the song repeats and loops, and when it is disconnected, it stops playing after the voice is played.
• PIR:  No loop: When someone is detected, it will play once and then stop automatically.
• Magnetic switch:  No loop: When the switch is sensed, it will automatically stop playing once, and it will stop immediately when it is disconnected.  Loop: When the switch is sensed, the song will repeat and loop, and it will stop playing immediately when it is disconnected. / When the switch is inductive, the song will be played repeatedly in a loop, and when the switch is disconnected, it will stop playing after the voice is played.
• Hall sensor:  No loop: When the Hall switch is sensed, it will automatically stop playing once, and it will stop immediately when it is disconnected.  Loop: When the Hall switch is sensed, the song will be played repeatedly, and it will stop playing immediately when it is disconnected. / When the Hall switch is inductive, the song will be played repeatedly and in a loop, and when it is disconnected, it will stop playing after the voice is played.

Instructions for different sensors or triggers

Key control mode

Steps for usage:

1. Long press the recording button, start recording after hearing the sound, release the button during recording, and short press the recording button to stop recording after recording.
2. After the recording is finished, press the play button to start playing, and stop playing after the playback is complete.
3. If the second step test is OK, the music movement can be installed on the product.

Steps for usage:

1 Light sensor mode

Steps for usage:

1. Long press the recording button, start recording after hearing the sound, release the button during recording, and then short press the recording button to stop recording after recording.
2. After the recording is finished, cover the photoresistor and release it, then the recorded voice will start to play, cover it again to stop playing, and release it to start playing again.
3. If the second step test is OK, the music movement can be installed on the product.

2 PIR sensor:

Steps for usage:

1. Long press the recording button, start recording after hearing the sound, release the button during recording, and short press the recording button to stop recording after recording.
2. After the recording is finished, it will start playing when the human body sensor is triggered, and stop playing after the playback is finished.
3. If the second step test is OK, the music movement can be installed on the product.

Explore endless possibilities of application scenarios!

Voice Greeting Card: Give your well wishes a new voice! Record your heartfelt messages in our product and let your loved ones experience your sincere greetings when they open the card.

Bluetooth Speaker: Enjoy high-quality music anytime, anywhere! Connect our product to your phone or other Bluetooth devices and transform it into a portable speaker, allowing you to indulge in your favorite tunes.

Recording Device: Capture important moments and preserve them forever! With a built-in microphone and advanced recording chip, our product serves as your personal recording device, allowing you to document meetings, musical performances, and personal memos, keeping every precious sound intact.

Audio Transmitter: Take your phone music to the next level! By connecting to your phone via Bluetooth, our product can seamlessly record the music playing on your phone in real-time, providing a convenient way to save your favorite songs or recordings.

Personalized Gift: Customize a unique present that conveys genuine emotions! Store your special voice messages in our product, combined with a personalized card design, to create a one-of-a-kind gift that brings endless surprises to your family, friends, or significant other.

In the realm of this product, your creativity and imagination are the only limits! Whether it’s expressing love, sharing music, or capturing cherished moments, our product will be your most reliable companion.

Discover our product now and find your unique application scenario!