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LakeShark · Deep Dive · 10 volumes

LakeShark

10 volumes: the ESP32-P4 board, the USB-host SDR trick, the on-device P25/DMR/POCSAG/ADS-B pipeline, mapping and direction-finding, flashing and where it sits beside HackRF.

Samuel Reynolds' GPL-3.0 firmware turning the LilyGO T-Display P4 (ESP32-P4) into a standalone handheld SDR scanner — P25 trunking, FM/AM, POCSAG and ADS-B decoded on-device with an RTL-SDR over USB, plus LoRa/MeshCore, GPS and offline maps. No PC.

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sten gun
pages with both words
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Without quotes, the last word also matches longer words that start with it (sten finds Stenophylla), and close word forms count (rifle finds rifles). Tick Exact words to match whole words only.

Whole deep dives are listed first, then the pages inside them.

    Volumes

    1. Vol 1 LakeShark Volume 1 — Overview & Decision Graph The no-PC handheld-scanner thesis, the SX1262-vs-LR2021 fork, who it is for, what it costs, and where it sits beside HackRF, PortaPack and the Scanners project
    2. Vol 2 LakeShark Volume 2 — The ESP32-P4 & the T-Display P4 Board The RISC-V dual-core SoC, the High-Speed USB host, the C6 Wi-Fi/BT offload, the LilyGO T-Display P4, the MIX-RF keyboard, and the full 'where this firmware runs' hardware table
    3. Vol 3 LakeShark Volume 3 — SDR Theory & the USB-Host Miracle How xtrsdr adapts librtlsdr onto the ESP-IDF USB host stack, why High-Speed USB unlocks 2 MSPS, what the RTL2832U + R820T2 front end actually does, and the experimental HackRF transport
    4. Vol 4 LakeShark Volume 4 — On-device DSP & P25 Voice IQ to intelligible speech on two RISC-V cores, with no PC in the loop
    5. Vol 5 LakeShark Volume 5 — Digital-Voice & Paging Decode P25 trunking, the DMR observer trick, POCSAG, SAME/EAS — and an honest ledger of what has met real RF
    6. Vol 6 LakeShark Volume 6 — ADS-B, Waterfall & the Mapping Stack 1090 MHz Mode S, a touch-to-tune waterfall, and an offline map that needs no network
    7. Vol 7 LakeShark Volume 7 — Mesh, LoRa & Direction-Finding MeshCore on SX1262/LR2021, the LoRa bench, and the honest compass
    8. Vol 8 LakeShark Volume 8 — Sub-GHz, NFC & the MIX-RF Tools `.sub` capture/replay, the OOK decoders, the keyboard radios, and two apps that are not what their names suggest
    9. Vol 9 LakeShark Volume 9 — Flashing, Building & the C6 Dance Web installer, two-slot OTA, the ESP-IDF source build, and the one-time C6 UART reflash
    10. Vol 10 LakeShark Volume 10 — Comparison, Ecosystem, Posture & Cheatsheet Where it sits, who it builds on, what the law allows, and the one-page quick-reference