![]() ![]() Chrome added support for WebUSB in late 2017. ![]() Web pages requesting access to local USB devices must seek explicit user permission, which is handled through the web browser. Just like the MediaDevices API, security and privacy is paramount. More recently, the w3c spec’d out an API for securely providing access to Universal Serial Bus (USB) devices from web pages called WebUSB. But, if you think about it, we actually do this all the time using video chat in our web browsers: the w3c MediaDevices API provides regulated access to media input devices like cameras and microphones. In this lesson, we will apply our growing serial knowledge to a new context: the web! Now, it may seem a bit weird to use a web browser to communicate with a locally connected device. In our previous lesson we dove deeper into asynchronous serial communication, Arduino’s Serial functionality, and how we can write computer programs, like serial_demo.py, to bidirectionally communicate with Arduino. Hide UI until serial connection is made.Update received-text with data received from Arduino.Add connect button and initial interface.Create folder and initial index.html page.Requesting permission to communicate with a serial device.Does my web browser support Web Serial?.
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