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#ble — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #ble, aggregated by home.social.

  1. John Poole @[email protected] ·

    I used #Bluetooth / #BLE as a short-range stand-in for #LoRa to test #Reticulum mesh behavior with #TBeamSupreme units.

    The RSSI graph worked: carry two units away from a base pair, watch signal strength decay, disappear, then recover on return.

    The GPS trace? Woeful. Useful lesson: RSSI test succeeded; urban T-Beam GPS precision did not.

    salemdata.net/johnpress/?p=757

    #MeshNetworking #ESP32 #FieldTesting #OpenSource

    #bluetooth #ble #lora #reticulum #tbeamsupreme #meshnetworking
  2. John Poole @[email protected] ·

    I used #Bluetooth / #BLE as a short-range stand-in for #LoRa to test #Reticulum mesh behavior with #TBeamSupreme units.

    The RSSI graph worked: carry two units away from a base pair, watch signal strength decay, disappear, then recover on return.

    The GPS trace? Woeful. Useful lesson: RSSI test succeeded; urban T-Beam GPS precision did not.

    salemdata.net/johnpress/?p=757

    #MeshNetworking #ESP32 #FieldTesting #OpenSource

    #opensource #fieldtesting #esp32 #meshnetworking #tbeamsupreme #reticulum
  3. John Poole @[email protected] ·

    I used #Bluetooth / #BLE as a short-range stand-in for #LoRa to test #Reticulum mesh behavior with #TBeamSupreme units.

    The RSSI graph worked: carry two units away from a base pair, watch signal strength decay, disappear, then recover on return.

    The GPS trace? Woeful. Useful lesson: RSSI test succeeded; urban T-Beam GPS precision did not.

    salemdata.net/johnpress/?p=757

    #MeshNetworking #ESP32 #FieldTesting #OpenSource

    #bluetooth #ble #lora #reticulum #tbeamsupreme #meshnetworking
  4. John Poole @[email protected] ·

    I used #Bluetooth / #BLE as a short-range stand-in for #LoRa to test #Reticulum mesh behavior with #TBeamSupreme units.

    The RSSI graph worked: carry two units away from a base pair, watch signal strength decay, disappear, then recover on return.

    The GPS trace? Woeful. Useful lesson: RSSI test succeeded; urban T-Beam GPS precision did not.

    salemdata.net/johnpress/?p=757

    #MeshNetworking #ESP32 #FieldTesting #OpenSource

    #bluetooth #ble #lora #reticulum #tbeamsupreme #meshnetworking
  5. cnx-software.com [Unofficial] @[email protected] ·

    PolyCast5 – An ESP32-C5 multi-tool remote with dual-band WiFi 6, BLE, ESP-NOW, LoRa, and Infrared Tx/Rx (Crowdfunding)

    fed.brid.gy/r/https://www.cnx-

    #espressif #hardware #video #ble #bluetooth #esp32
  6. cnx-software.com [Unofficial] @[email protected] ·

    WCH BLE Analyzer Pro USB Bluetooth LE sniffer gains Linux software with Wireshark (pcap) support

    fed.brid.gy/r/https://www.cnx-

    #hardware #linux #softwaremanagement #wch #ble #bluetooth
  7. U3dn @[email protected] ·

    Heart Rate Plugin for HypeRate #Pulse #Lowenergy #Wristband #Bluetooth #Android #Ble #Hyperate #Ios #Heartrate #Webbluetooth #Input #Chestbelt #AssetStore

    u3dn.com/packages/heart-rate-p

    #pulse #lowenergy #wristband #bluetooth #android #ble
  8. U3dn @[email protected] ·

    Heart Rate Plugin for HypeRate #Pulse #Lowenergy #Wristband #Bluetooth #Android #Ble #Hyperate #Ios #Heartrate #Webbluetooth #Input #Chestbelt #AssetStore

    u3dn.com/packages/heart-rate-p

    #pulse #lowenergy #wristband #bluetooth #android #ble
  9. U3dn @[email protected] ·

    Heart Rate Plugin for HypeRate #Pulse #Lowenergy #Wristband #Bluetooth #Android #Ble #Hyperate #Ios #Heartrate #Webbluetooth #Input #Chestbelt #AssetStore

    u3dn.com/packages/heart-rate-p

    #assetstore #chestbelt #input #webbluetooth #heartrate #ios
  10. U3dn @[email protected] ·

    Heart Rate Plugin for HypeRate #Pulse #Lowenergy #Wristband #Bluetooth #Android #Ble #Hyperate #Ios #Heartrate #Webbluetooth #Input #Chestbelt #AssetStore

    u3dn.com/packages/heart-rate-p

    #pulse #lowenergy #wristband #bluetooth #android #ble
  11. Simon 🐮:spot: @[email protected] ·

    Does anyone know a good alternative to #RoomAssistant?
    I don't want to get #mmWave shit everywhere. I just want to use #BLE if possible.

    #roomassistant #mmwave #ble
  12. Simon 🐮:spot: @[email protected] ·

    Does anyone know a good alternative to #RoomAssistant?
    I don't want to get #mmWave shit everywhere. I just want to use #BLE if possible.

    #roomassistant #mmwave #ble
  13. Simon 🐮:spot: @[email protected] ·

    Does anyone know a good alternative to #RoomAssistant?
    I don't want to get #mmWave shit everywhere. I just want to use #BLE if possible.

    #roomassistant #mmwave #ble
  14. Simon 🐮:spot: @[email protected] ·

    Does anyone know a good alternative to #RoomAssistant?
    I don't want to get #mmWave shit everywhere. I just want to use #BLE if possible.

    #ble #mmwave #roomassistant
  15. Simon 🐮:spot: @[email protected] ·

    Does anyone know a good alternative to #RoomAssistant?
    I don't want to get #mmWave shit everywhere. I just want to use #BLE if possible.

    #roomassistant #mmwave #ble
  16. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2 W boards exchanging encrypted poems over #Reticulum using Bluetooth only -- no LoRa hat, no extra radio, no carrier network.

    A small-board demo of #microReticulum in C++ with BLE as the link layer. Cheap hardware, built-in radios, real packets, real timing, real tinkering.

    salemdata.net/johnpress/?p=720

    #RaspberryPi #PiZero2W #Bluetooth #BLE #Linux #SBC #Maker #SmallBoardComputers

    #reticulum #microreticulum #raspberrypi #pizero2w #bluetooth #ble
  17. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2 W boards exchanging encrypted poems over #Reticulum using Bluetooth only -- no LoRa hat, no extra radio, no carrier network.

    A small-board demo of #microReticulum in C++ with BLE as the link layer. Cheap hardware, built-in radios, real packets, real timing, real tinkering.

    salemdata.net/johnpress/?p=720

    #RaspberryPi #PiZero2W #Bluetooth #BLE #Linux #SBC #Maker #SmallBoardComputers

    #reticulum #microreticulum #raspberrypi #pizero2w #bluetooth #ble
  18. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2 W boards exchanging encrypted poems over #Reticulum using Bluetooth only -- no LoRa hat, no extra radio, no carrier network.

    A small-board demo of #microReticulum in C++ with BLE as the link layer. Cheap hardware, built-in radios, real packets, real timing, real tinkering.

    salemdata.net/johnpress/?p=720

    #RaspberryPi #PiZero2W #Bluetooth #BLE #Linux #SBC #Maker #SmallBoardComputers

    #reticulum #microreticulum #raspberrypi #pizero2w #bluetooth #ble
  19. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2 W boards exchanging encrypted poems over #Reticulum using Bluetooth only -- no LoRa hat, no extra radio, no carrier network.

    A small-board demo of #microReticulum in C++ with BLE as the link layer. Cheap hardware, built-in radios, real packets, real timing, real tinkering.

    salemdata.net/johnpress/?p=720

    #RaspberryPi #PiZero2W #Bluetooth #BLE #Linux #SBC #Maker #SmallBoardComputers

    #smallboardcomputers #maker #sbc #linux #ble #bluetooth
  20. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2 W boards exchanging encrypted poems over #Reticulum using Bluetooth only -- no LoRa hat, no extra radio, no carrier network.

    A small-board demo of #microReticulum in C++ with BLE as the link layer. Cheap hardware, built-in radios, real packets, real timing, real tinkering.

    salemdata.net/johnpress/?p=720

    #RaspberryPi #PiZero2W #Bluetooth #BLE #Linux #SBC #Maker #SmallBoardComputers

    #reticulum #microreticulum #raspberrypi #pizero2w #bluetooth #ble
  21. John Poole @[email protected] ·

    Skipping the #TBeamSupreme for this test: two bare #RaspberryPiZero2W boards running #microReticulum with my BLE interface, each sending poetry to the other over their built-in Bluetooth radios.

    Two $17 SBCs, 8.8 MB builds, fully secure Reticulum link, and ambidextrous roles: start both, and they decide who is client/server.

    #Bluetooth #BLE #Reticulum #RaspberryPi #MeshNetworking

    #tbeamsupreme #raspberrypizero2w #microreticulum #bluetooth #ble #reticulum
  22. John Poole @[email protected] ·

    Skipping the #TBeamSupreme for this test: two bare #RaspberryPiZero2W boards running #microReticulum with my BLE interface, each sending poetry to the other over their built-in Bluetooth radios.

    Two $17 SBCs, 8.8 MB builds, fully secure Reticulum link, and ambidextrous roles: start both, and they decide who is client/server.

    #Bluetooth #BLE #Reticulum #RaspberryPi #MeshNetworking

    #tbeamsupreme #raspberrypizero2w #microreticulum #bluetooth #ble #reticulum
  23. John Poole @[email protected] ·

    Skipping the #TBeamSupreme for this test: two bare #RaspberryPiZero2W boards running #microReticulum with my BLE interface, each sending poetry to the other over their built-in Bluetooth radios.

    Two $17 SBCs, 8.8 MB builds, fully secure Reticulum link, and ambidextrous roles: start both, and they decide who is client/server.

    #Bluetooth #BLE #Reticulum #RaspberryPi #MeshNetworking

    #tbeamsupreme #raspberrypizero2w #microreticulum #bluetooth #ble #reticulum
  24. John Poole @[email protected] ·

    Skipping the #TBeamSupreme for this test: two bare #RaspberryPiZero2W boards running #microReticulum with my BLE interface, each sending poetry to the other over their built-in Bluetooth radios.

    Two $17 SBCs, 8.8 MB builds, fully secure Reticulum link, and ambidextrous roles: start both, and they decide who is client/server.

    #Bluetooth #BLE #Reticulum #RaspberryPi #MeshNetworking

    #meshnetworking #raspberrypi #reticulum #ble #bluetooth #microreticulum
  25. John Poole @[email protected] ·

    Skipping the #TBeamSupreme for this test: two bare #RaspberryPiZero2W boards running #microReticulum with my BLE interface, each sending poetry to the other over their built-in Bluetooth radios.

    Two $17 SBCs, 8.8 MB builds, fully secure Reticulum link, and ambidextrous roles: start both, and they decide who is client/server.

    #Bluetooth #BLE #Reticulum #RaspberryPi #MeshNetworking

    #tbeamsupreme #raspberrypizero2w #microreticulum #bluetooth #ble #reticulum
  26. John Poole @[email protected] ·

    Milestone: Torlando’s Python BLE Reticulum protocol behavior has now been partially distilled into a C++ protocol/session core and field-tested between two Raspberry Pi Zero 2Ws. The test moved the full U.S. Constitution both directions over Reticulum using BLE, with C++ fragmentation/session backends confirmed.

    salemdata.net/johnpress/?p=695

    Next stop: microReticulum on the LilyGO T-Beam SUPREME.

    #Reticulum #BLE #Bluetooth #microReticulum #TBeamSupreme #LilyGO #RaspberryPi #ESP32 #LoRa #Cplusplus

    #reticulum #ble #bluetooth #microreticulum #tbeamsupreme #lilygo
  27. Habr @[email protected] ·

    Делаем любимую механику беспроводной: BLE-адаптер для Kingston HyperX Alloy FPS на базе Raspberry Pi Pico W

    Продолжаю рассказывать о своём опыте создания BLE адаптера для USB-клавиатуры, которым уже пользуюсь каждый день. Собранный ранее на макетной плате адаптер с подключённым pico debug был хорош тем, что можно было экспериментировать, набираться опыта, но пользоваться таким адаптером как устройством неудобно: нет корпуса и нет автономного питания. В комментариях к прошлой статье читатели упоминали, что китайцы продают адаптеры, по функционалу похожие на мой, но пользоваться такими адаптерами также неудобно. C хостом действительно беспроводной канал, а вот кипу проводов к самому адаптеру никто не отменял. Стремление к универсальности часто приводит к неудобным решениям, поэтому я сосредоточился на своей клавиатуре Kingston HyperX Alloy.

    habr.com/ru/companies/ruvds/ar

    #ble #usb #miniusb #diyпроекты #корпус #адаптер #bluetooth #kingston #hyperx_alloy #ruvds_статьи

    #ruvds_статьи #hyperx_alloy #kingston #bluetooth #адаптер #корпус
  28. Habr @[email protected] ·

    Делаем любимую механику беспроводной: BLE-адаптер для Kingston HyperX Alloy FPS на базе Raspberry Pi Pico W

    Продолжаю рассказывать о своём опыте создания BLE адаптера для USB-клавиатуры, которым уже пользуюсь каждый день. Собранный ранее на макетной плате адаптер с подключённым pico debug был хорош тем, что можно было экспериментировать, набираться опыта, но пользоваться таким адаптером как устройством неудобно: нет корпуса и нет автономного питания. В комментариях к прошлой статье читатели упоминали, что китайцы продают адаптеры, по функционалу похожие на мой, но пользоваться такими адаптерами также неудобно. C хостом действительно беспроводной канал, а вот кипу проводов к самому адаптеру никто не отменял. Стремление к универсальности часто приводит к неудобным решениям, поэтому я сосредоточился на своей клавиатуре Kingston HyperX Alloy.

    habr.com/ru/companies/ruvds/ar

    #ble #usb #miniusb #diyпроекты #корпус #адаптер #bluetooth #kingston #hyperx_alloy #ruvds_статьи

    #ruvds_статьи #hyperx_alloy #kingston #bluetooth #адаптер #корпус
  29. Habr @[email protected] ·

    Делаем любимую механику беспроводной: BLE-адаптер для Kingston HyperX Alloy FPS на базе Raspberry Pi Pico W

    Продолжаю рассказывать о своём опыте создания BLE адаптера для USB-клавиатуры, которым уже пользуюсь каждый день. Собранный ранее на макетной плате адаптер с подключённым pico debug был хорош тем, что можно было экспериментировать, набираться опыта, но пользоваться таким адаптером как устройством неудобно: нет корпуса и нет автономного питания. В комментариях к прошлой статье читатели упоминали, что китайцы продают адаптеры, по функционалу похожие на мой, но пользоваться такими адаптерами также неудобно. C хостом действительно беспроводной канал, а вот кипу проводов к самому адаптеру никто не отменял. Стремление к универсальности часто приводит к неудобным решениям, поэтому я сосредоточился на своей клавиатуре Kingston HyperX Alloy.

    habr.com/ru/companies/ruvds/ar

    #ble #usb #miniusb #diyпроекты #корпус #адаптер #bluetooth #kingston #hyperx_alloy #ruvds_статьи

    #ruvds_статьи #hyperx_alloy #kingston #bluetooth #адаптер #корпус
  30. Habr @[email protected] ·

    Делаем любимую механику беспроводной: BLE-адаптер для Kingston HyperX Alloy FPS на базе Raspberry Pi Pico W

    Продолжаю рассказывать о своём опыте создания BLE адаптера для USB-клавиатуры, которым уже пользуюсь каждый день. Собранный ранее на макетной плате адаптер с подключённым pico debug был хорош тем, что можно было экспериментировать, набираться опыта, но пользоваться таким адаптером как устройством неудобно: нет корпуса и нет автономного питания. В комментариях к прошлой статье читатели упоминали, что китайцы продают адаптеры, по функционалу похожие на мой, но пользоваться такими адаптерами также неудобно. C хостом действительно беспроводной канал, а вот кипу проводов к самому адаптеру никто не отменял. Стремление к универсальности часто приводит к неудобным решениям, поэтому я сосредоточился на своей клавиатуре Kingston HyperX Alloy.

    habr.com/ru/companies/ruvds/ar

    #ble #usb #miniusb #diyпроекты #корпус #адаптер #bluetooth #kingston #hyperx_alloy #ruvds_статьи

    #ble #usb #miniusb #diyпроекты #корпус #адаптер
  31. cnx-software.com [Unofficial] @[email protected] ·

    ESP32-S3 PowerFeather V2 board gains support for LiFePO4/LFP batteries

    web.brid.gy/r/https://www.cnx-

    #espressif #hardware #arduino #battery #ble #cc
  32. cnx-software.com [Unofficial] @[email protected] ·

    ESP32-S3 PowerFeather V2 board gains support for LiFePO4/LFP batteries

    fed.brid.gy/r/https://www.cnx-

    #espressif #hardware #arduino #battery #ble #cc
  33. U3dn @[email protected] ·

    MicroBle - micro:bit BLE Interface #Microbit #Ble #Bluetoothlowenergy #Gamepad #Accelerometer #Ledscreen #Unity #Arduinoide #AssetStore

    u3dn.com/packages/microble-mic

    #microbit #ble #bluetoothlowenergy #gamepad #accelerometer #ledscreen
  34. Afrique @[email protected] ·

    europesays.com/afrique/105952/ Blé : l’Algérie lance un nouvel appel d’offres pour l’achat de 50 000 tonnes #Algérie #ble #cereales

    #cereales #ble #algerie
  35. Afrique @[email protected] ·

    europesays.com/afrique/105908/ L’Égypte investit 15 milliards de dollars dans un mégaprojet de développement de la productivité agricole #ble #Égypte #emploi #importations #ProductivitéAgricole

    #productiviteagricole #importations #emploi #egypte #ble
  36. cnx-software.com [Unofficial] @[email protected] ·

    ESP32-S3 boards feature WAGO connectors for LED strips, buttons, other swappable modules

    fed.brid.gy/r/https://www.cnx-

    #espressif #hardware #video #ble #bluetooth #cc
  37. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2Ws successfully exchanged the full 44k text of the U.S. Constitution over a Reticulum Bluetooth interface: 100% completeness simultaneously.

    Can BLE become a viable Reticulum interface for projects like microReticulum on the LilyGO T-Beam SUPREME? Includes synchronized timing analysis, latency metrics, and Perl-based log analytics.

    salemdata.net/johnpress/?p=687

    #Reticulum #Bluetooth #BLE #PiZero2W #LoRa #TBeamSupreme #OpenSource

    #reticulum #bluetooth #ble #pizero2w #lora #tbeamsupreme
  38. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2Ws successfully exchanged the full 44k text of the U.S. Constitution over a Reticulum Bluetooth interface: 100% completeness simultaneously.

    Can BLE become a viable Reticulum interface for projects like microReticulum on the LilyGO T-Beam SUPREME? Includes synchronized timing analysis, latency metrics, and Perl-based log analytics.

    salemdata.net/johnpress/?p=687

    #Reticulum #Bluetooth #BLE #PiZero2W #LoRa #TBeamSupreme #OpenSource

    #opensource #tbeamsupreme #lora #pizero2w #ble #bluetooth
  39. John Poole @[email protected] ·

    Two $17 Raspberry Pi Zero 2Ws successfully exchanged the full 44k text of the U.S. Constitution over a Reticulum Bluetooth interface: 100% completeness simultaneously.

    Can BLE become a viable Reticulum interface for projects like microReticulum on the LilyGO T-Beam SUPREME? Includes synchronized timing analysis, latency metrics, and Perl-based log analytics.

    salemdata.net/johnpress/?p=687

    #Reticulum #Bluetooth #BLE #PiZero2W #LoRa #TBeamSupreme #OpenSource

    #reticulum #bluetooth #ble #pizero2w #lora #tbeamsupreme
  40. John Poole @[email protected] ·

    Building fresh #Gentoo SD images for two Raspberry Pi Zero 2W nodes to test Torlando Tech's #Reticulum BLE transport using BlueZ/GATT. Goal: validate stable peer transport over #BLE, then migrate the Python implementation into a C++ transport/interface layer for microReticulum while preserving the articulated BLE protocol semantics. Interesting intersection of embedded Linux, GATT, and Reticulum.

    github.com/torlando-tech/ble-r

    github.com/attermann/microReti

    #gentoo #reticulum #ble
  41. John Poole @[email protected] ·

    Building fresh #Gentoo SD images for two Raspberry Pi Zero 2W nodes to test Torlando Tech's #Reticulum BLE transport using BlueZ/GATT. Goal: validate stable peer transport over #BLE, then migrate the Python implementation into a C++ transport/interface layer for microReticulum while preserving the articulated BLE protocol semantics. Interesting intersection of embedded Linux, GATT, and Reticulum.

    github.com/torlando-tech/ble-r

    github.com/attermann/microReti

    #ble #reticulum #gentoo
  42. John Poole @[email protected] ·

    Building fresh #Gentoo SD images for two Raspberry Pi Zero 2W nodes to test Torlando Tech's #Reticulum BLE transport using BlueZ/GATT. Goal: validate stable peer transport over #BLE, then migrate the Python implementation into a C++ transport/interface layer for microReticulum while preserving the articulated BLE protocol semantics. Interesting intersection of embedded Linux, GATT, and Reticulum.

    github.com/torlando-tech/ble-r

    github.com/attermann/microReti

    #gentoo #reticulum #ble
  43. John Poole @[email protected] ·

    Building fresh #Gentoo SD images for two Raspberry Pi Zero 2W nodes to test Torlando Tech's #Reticulum BLE transport using BlueZ/GATT. Goal: validate stable peer transport over #BLE, then migrate the Python implementation into a C++ transport/interface layer for microReticulum while preserving the articulated BLE protocol semantics. Interesting intersection of embedded Linux, GATT, and Reticulum.

    github.com/torlando-tech/ble-r

    github.com/attermann/microReti

    #gentoo #reticulum #ble
  44. cnx-software.com [Unofficial] @[email protected] ·

    M5Stack PaperColor ESP32-S3 devkit features 4-inch E Ink Spectra 6 color display

    fed.brid.gy/r/https://www.cnx-

    #audio #espressif #hardware #video #arduino #ble
  45. Afrique @[email protected] ·

    europesays.com/afrique/102766/ L’Algérie s’attend à une moisson record de céréales, selon Yacine Oualid #AgricultureSaharienne #Algérie #ble #cereales

    #cereales #ble #algerie #agriculturesaharienne
  46. cnx-software.com [Unofficial] @[email protected] ·

    Clawdmeter – A DIY ESP32-S3 desk dashboard for Claude Code token usage monitoring

    fed.brid.gy/r/https://www.cnx-

    #espressif #hardware #programming #video #arduino #artificialintelligenceai
  47. Afrique @[email protected] ·

    europesays.com/afrique/101974/ Tunisie : une récolte céréalière meilleure que l’an dernier, mais… [Vidéo] #AgriculteursTunisiens #AutosuffisanceAlimentaire #ble #cereales #MidaniDhaoui #moisson #OfficeDesCereales #Récolte2026 #SyndicatTunisienDesAgriculteurs #Tunisie

    #tunisie #syndicattunisiendesagriculteurs #recolte2026 #officedescereales #moisson #midanidhaoui
  48. cnx-software.com [Unofficial] @[email protected] ·

    SONOFF Hydro DUO – A dual-channel Zigbee 3.0 smart water valve with flow meter

    fed.brid.gy/r/https://www.cnx-

    #hardware #telink #alexa #applehome #ble #ewelink
  49. cnx-software.com [Unofficial] @[email protected] ·

    SONOFF Hydro DUO – A dual-channel Zigbee 3.0 smart water valve with flow meter

    web.brid.gy/r/https://www.cnx-

    #zigbee #sonoff #smartthing #smarthome #smartagriculture #homeassistant
  50. Habr @[email protected] ·

    Снимаем показания счётчика воды «Бетар» по RS-485 и «МИР» по BLE с помощью ESP32

    В предыдущей статье habr.com/ru/articles/1016552/ я рассматривал реализацию снятия показаний счётчика электроэнергии МИР С-05.10–230-5(80)‑G2Z1B‑KNQ‑S-D

    habr.com/ru/articles/1032778/

    #ESP32 #Бетар #BLE #RS485

    #rs485 #ble #бетар #esp32