28 lines
803 B
Python
28 lines
803 B
Python
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# SPDX-FileCopyrightText: 2020 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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"""
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Can be used with ble_uart_echo_client.py or with the UART page on the
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Adafruit Bluefruit Connect app. Receives characters from the UARTService
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and transmits them back.
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"""
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from adafruit_ble import BLERadio
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from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
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from adafruit_ble.services.nordic import UARTService
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ble = BLERadio()
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uart = UARTService()
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advertisement = ProvideServicesAdvertisement(uart)
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while True:
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ble.start_advertising(advertisement)
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while not ble.connected:
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pass
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while ble.connected:
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# Returns b'' if nothing was read.
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one_byte = uart.read(1)
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if one_byte:
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print(one_byte)
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#uart.write(one_byte)
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