[Web Bluetooth] Add Read descriptors sample #478
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scheib
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Jan 30, 2017
| await descriptor.readValue().then(value => { | ||
| log('> Client Characteristic Configuration:'); | ||
| log(' > Notifications: ' + (value.getUint8(0) ? 'ON' : 'OFF')); | ||
| log(' > Indications: ' + (value.getUint8(1) ? 'ON' : 'OFF')); |
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This is fetching the 2nd byte, but you intended to select the 2nd bit. Use something like:
value.getUint8(0) & 0b01 // notifications
value.getUint8(0) & 0b10 // indications
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Rookie mistake. Thanks for catching this @scheib
ES6 binary notation to the rescue!
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@scheib WDYT? |
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For info, I've just submitted a PR at rouge-ruby/rouge#619 to make ES6 Binary literals and Octal literals highlighting works. |
scheib
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Jan 31, 2017
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Links giving me nothing but 404 pages someone give me a BLE Bluetooth link or download access please |
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You can find all samples at https://googlechrome.github.io/samples/web-bluetooth/index.html |
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Here's a more advanced sample for reading Bluetooth GATT descriptors.
R: @scheib
You can try it live at:
https://beaufortfrancois.github.io/samples/web-bluetooth/read-descriptors.html
https://beaufortfrancois.github.io/samples/web-bluetooth/read-descriptors-async-await.html
https://beaufortfrancois.github.io/samples/web-bluetooth/index.html