PineBuds Pro
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The PineBuds Pro are open firmware capable ANC wireless earbuds. Some of the notable features include their light weight, 3 Microphones, ANC (Active Noise Cancellation), ENC (Environment Noise Cancellation) and high fidelity 6mm speaker. It is a fully community-driven side-project which anyone can contribute to, allowing you to keep control of your device even though hardware is proprietary.
Short overview / Specifications
Dimensions:
- Earbud: WIP
- Charging case: 70 x 50 x 35mm ([source https://www.reddit.com/r/PINE64official/comments/ztt81d/comment/j1jjrxc])
Weight:
- Earbud: 5g
- Charging case: 65g
IP Rating of earbud: IPX4 System on Chip: BES 2300YP Flash: 4MB (Endurance erase cycles: >500) SRAM: 992KB Bluetooth: Bluetooth 5.2 dual-mode compliant Battery:
- Earbud: Built-in LiPo 3.7V 40mAh
- Charging case: Built-in LiPo 3.7V 800mAh
Software releases
Firmware Images Build
Flash back factory default firmware using Windows based utility:
- PineBuds Pro Windows based programmer utility user manual
- PineBuds Pro Windows based programmer utility
- PineBuds Pro factory default firmware build
- PineBuds Pro factory default OTA build
SDK Release
SoC and Memory Specification
- Based on BES 2300YP
SoC Architecture
- CMOS Single-chip Fully-integrated RF, PMU, Audio CODEC and Cortex-M4F CPU
- 4MB Serial Flash On-chip for Custom Program
- Internal ROM 448KB for critical constants and code
- Internal SRAM 992KB for critical data and code
- BT Features:
- Bluetooth 5.2 dual-mode compliant
- Audio Features:
- Support BES Intelligent Bluetooth Retransmission (IBRT)
- Support FF/Hybrid ANC
- Dual MICs noise reduction
- Echo Cancellation
- Support low power voice activity detection
- Multi-band EQ and Bass enhancement
- Support Active Crossover
- Support TWS
- HiFi Stereo Audio DAC: 120dB SNR, 110dB DNR
- HiFi Stereo Audio ADC: 100dB SNR
²* Sample rates from 8 kHz to 384 kHz
- Support dual/single Mic noise suppression
- Support ambient awareness
- Support talk through
- 24-bit audio processing
- PMU Features
- 3.1V-5.5V Input for VBAT
- Internal LPO for low power mode.
- DCXO with internal oscillator circuit
- Internal temperature sensor
Information, Schematics and Certifications
- Charging Case with two Left and Right earbuds
- Input Power: DC 5V @ 0.5A USB Type-C
- Document:
- Schematic:
- Certifications:
Datasheets for Components and Peripherals
- BES 2300YP SoC information:
- Charging Case:
- EarBuds: