Line Recorder Device with Bluetooth Integration
Budget: $30 – $250 USD
Project Requirement: Line Recorder with Bluetooth
Objective: Develop a compact Line Recorder device with Bluetooth connectivity that connects to a mobile app for controlling and managing call recordings.
Key Features
1. 3.5mm Audio Connectivity:
* Input Port (IN): Connects to the phone via a 3.5mm TRRS cable (e.g., Type-C to 3.5mm adapter).
* Output Port (OUT): Connects to headphones with a microphone.
* Ensure passthrough audio for both the microphone and headphone.
2. Bluetooth App Integration:
* Establish a Bluetooth connection with a mobile app.
* Mobile app controls:
* Start/Stop Recording: Signal the device to begin or stop recording.
* Download Recordings: Retrieve the recorded audio file via Bluetooth.
* Clear Storage: Automatically delete the recording after download.
3. Recording Capabilities:
* Record audio passing through the 3.5mm
* Use the ESP32’s internal ADC for recording,We just require normal speech quality data. If this does not work at all then consider using an external i2c or some adc that is cheap
We will develop the mobile app internally
Objective: Develop a compact Line Recorder device with Bluetooth connectivity that connects to a mobile app for controlling and managing call recordings.
Key Features
1. 3.5mm Audio Connectivity:
* Input Port (IN): Connects to the phone via a 3.5mm TRRS cable (e.g., Type-C to 3.5mm adapter).
* Output Port (OUT): Connects to headphones with a microphone.
* Ensure passthrough audio for both the microphone and headphone.
2. Bluetooth App Integration:
* Establish a Bluetooth connection with a mobile app.
* Mobile app controls:
* Start/Stop Recording: Signal the device to begin or stop recording.
* Download Recordings: Retrieve the recorded audio file via Bluetooth.
* Clear Storage: Automatically delete the recording after download.
3. Recording Capabilities:
* Record audio passing through the 3.5mm
* Use the ESP32’s internal ADC for recording,We just require normal speech quality data. If this does not work at all then consider using an external i2c or some adc that is cheap
We will develop the mobile app internally