B4R Question Seedstudio Arduino + BLE

Discussion in 'B4R Questions' started by FormCommander, Jun 29, 2018.

  1. FormCommander

    FormCommander Member Licensed User

  2. tigrot

    tigrot Well-Known Member Licensed User

    Should be a "arduino micro " clone. Has a mega32u4 processor.
     
  3. FormCommander

    FormCommander Member Licensed User

    Hello, I am looking for a small board to send temperature and other data via bluetooth to a phone. Thougth that this would be a solution.
     
  4. tigrot

    tigrot Well-Known Member Licensed User

    I'd use a Arduino micro + bluetooth board like HM10 board. Or use the device you have pointed before. It's up to you. They have the same use. Remember that pairing BT is not a simple task depending on micro's role(master or slave).
     
  5. FormCommander

    FormCommander Member Licensed User

  6. BillMeyer

    BillMeyer Active Member Licensed User

    @FormCommander

    May I ask the question - Why don't you use an ESP32 with BT ? - That way you have both Bluetooth and WiFi - so your device will receive (at close proximity) from Bluetooth (if you so desire) and at long distance with Wifi (internet connection etc as a given then)

    May I share some resources with you ?

    B4R Library and Example here: https://www.b4x.com/android/forum/threads/resp32bluetooth-esp32-classic-bluetooth.93257/#content
    and here: https://www.b4x.com/android/forum/threads/resp32simpleble-esp32-ble.93287/

    ESP32 Board: https://www.banggood.com/ESP32-Deve...-p-1109512.html?rmmds=search&cur_warehouse=CN
    and here: https://www.banggood.com/Wemos-ESP3...s=detail-left-hotproducts__1&cur_warehouse=CN

    and possibly, if you want to look at IoT in the future, this board could also work for you: https://www.elecrow.com/esp8266-iot-board-p-1591.html - it does not have bluetooth - but this can be added as a supplemental board with a bit of effort.

    and if you really want to go over the top with NB-IoT etc then look here: https://www.dfrobot.com/product-1732.html
    and tutorial here: https://www.dfrobot.com/wiki/index....NB-IoT/LTE/GPRS_Expansion_Shield_SKU:_DFR0505

    AND the good thing is that the code shown there can be ADAPTED to B4R !!


    Enjoy !!
     
    tigrot likes this.
  7. FormCommander

    FormCommander Member Licensed User

    Hello, thank you, that helps a lot. And IoT is also very interesting for me. I will order a board and try to install the addons for ESP32 in the Arduion IDE as first step. I am sure I am comming back with some questions ;-)
    best regards
    Rudolf
     
    BillMeyer likes this.
  8. BillMeyer

    BillMeyer Active Member Licensed User

    You are welcome - anytime !!
     
  9. tigrot

    tigrot Well-Known Member Licensed User

    Esp32 is an amazing piece of hardware. At the price of a cinema ticket has an impressing mix of functions. If you don't have the need for a lot of GPIO it's something to think about.
     
    BillMeyer likes this.
  10. FormCommander

    FormCommander Member Licensed User

    have seen that there is even a board with an eInk display, very nice this things
     
    tigrot likes this.
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