Difference between revisions of "PineBuds Pro"

Revision as of 20:33, 12 January 2023

The PineBuds Pro

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)

Weight:

Earbud: 5g

Charging case: 65g

IP Rating of Earbuds: 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

Work in progress

Silicone case

Goal is to make a silicone case like this for PineBuds Pro.

"Design a mold, use a hobby 3D printer to manufacture it, then fill with silicone." (source)
"You can find a local hackspace or makerspace. Or you can use one of the many services available via the Internet who can print a model for you. Just design, upload, and pay." (source)
"The only one I know of is "https://www.pcbway.com/rapid-prototyping/injection-molding/"" (source)

Software releases

Firmware Images Build

Flash back factory default firmware using Windows based utility:

SDK Release

- PineBuds Pro "Little Whale" SDK date:20221128

SoC and Memory Specification

Based on BES 2300YP

SoC Architecture

CPU Features:
- Dual-core ARM Cortex-M4F Processor Processor up to 300MHz CPU

- 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:
- PineBuds Pro User Manual
Schematic:
- PineBuds Pro Earbuds Schematic 20220817
- PineBuds Pro Charging Case Schematic 20220915
Certifications:

Datasheets for Components and Peripherals

@@ Line 22: / Line 22: @@
 === Silicone case ===
+Goal is to make a silicone case like [https://www.amazon.com/dp/B0BGNBFY6Z this] for PineBuds Pro.
 "Design a mold, use a hobby 3D printer to manufacture it, then fill with silicone." ([https://matrix.to/#/!OGWEsuBXqiRfaqvtfm:matrix.org/$8FgCtx9jh2ZLnDFNvf2yN5nKMzv4V7XAn-zwuWKxfSM?via=matrix.org&via=tchncs.de&via=envs.net source]) <br>
 "You can find a local hackspace or makerspace. Or you can use one of the many services available via the Internet who can print a model for you. Just design, upload, and pay." ([https://matrix.to/#/!OGWEsuBXqiRfaqvtfm:matrix.org/$TD5kfUkVLfx9Sbx5t0Z2oCsUTvmS0FPrwQn0Xrr5YiQ?via=matrix.org&via=tchncs.de&via=envs.net source]) <br>

Difference between revisions of "PineBuds Pro"

Revision as of 20:33, 12 January 2023

Contents

Short overview / Specifications