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A Bluetooth tethering library for microcontrollers. Tunnels IP traffic over Bluetooth Classic (BNEP) or BLE (SLIP) directly into the lwIP stack.

6 starsC

TinyPAN – Zero-allocation Bluetooth tethering for microcontrollers

by akhilchaturvedi·Feb 21, 2026·2 points·0 comments
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AI Analysis

●●SolidWizardryNiche Gem

Zero-allocation Bluetooth tethering for embedded systems—clever pbuf manipulation avoids memory copy.

Strengths
  • •Ingenious zero-copy TX fast path using in-place pbuf manipulation; measurably constrains RAM/Flash to ~192 bytes and ~14.5 KB.
  • •Single-threaded polling with predictable timeout bridge enables WFI power gating—real win for battery-sensitive MCUs.
  • •Minimal, testable architecture with mock HAL and integration tests; genuinely portable.
Weaknesses
  • •Niche audience (embedded Bluetooth); no evidence of deployed production use or OS ecosystem adoption.
  • •Bluetooth tethering itself is a narrow problem; most embedded systems use Wi-Fi or direct cellular as primary fallback.
Target Audience

Embedded systems engineers (ESP32, nRF52), IoT developers, battery-constrained device builders.

Similar To

lwIP · BlueZ · esp-idf Bluetooth

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