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BLE received sensor value showing up as [?] which blocks to use?

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ble, bluetooth

Juan_Antonio December 3, 2022, 8:57am 2

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BLE ESP32. Bluetooth. Send. Receive. Arduino IDE. Multitouch Tutorials and Guides

3.- App sends text and receives random number. With Clock. p110i_esp32_ble_recibir.aia (221.0 KB) [appinventoresp32ble91] Write and Send a text. Show in Serial Monitor. ESP sends a random number. With Clock. Look TimerInterval and Delay. [appinventoresp32ble4i] /* Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleWrite.cpp Ported to Arduino ESP32 by Evandro Copercini */ // Modificado por Juan Antonio Vil…

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