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Error 507 unable to connect is the device turned on?

MIT App Inventor Help

bug-or-problem, arduino, bluetooth

ABG October 14, 2025, 10:03pm 4

(added to FAQ)

FAQ Section: BlueTooth Starter Guides Frequently Asked Questions

Bluetooth 507 errors (missing Location, Scan, Connect permissions) - @Taifun, @ChrisWard BlueTooth Problems Disconnection detection through handshakes - @uskiara How to get Device Information BlueTooth Client Polling Rate Explained - @ewpatton Links to bluetooth guides on communication, numeric data and arduino (dead link) BLE Connection Starter Guide - @ewpatton FAQ Section: BlueTooth/BLE and Arduino Starter FAQ Section: BlueTooth/BLE and Micro:bit FAQ Section: BlueTooth/BLE and HM-10 …

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