If your device is not shown in list that pop-up while connection establishing step then your device might be not connected properly to port or their might be the browser compatability issue. Please ensure that it is properly connected to the port. Reseating connection cable might also helps to resolve this issue.
This tool is not supported on Safari & Firefox browsers yet! Please try using another browser like Google Chrome with supported version.
ESP Launchpad makes use of Web Serial API to communicate with the device. Currently Safari & Firefox browsers don't support it yet. We will add support for this browser as soon as Safari & Firefox starts supporting Web Serial API. Please find more about Web Serial API browser compatability guide here
If you are using older devices or older versions of device then sometimes you may face an issue in connection establishing step or firmware flashing step. Please try that steps by pressing boot button provided on device.
List of devices that supported by ESP Launchpad
It has been seen that on windows system with latest Silicon Lab CP210x USB to UART Bridge
there are device connection or flashing issues.We are looking into it to resolve the issue.
You can still try by downgrading silicon lab CP210x USB to UART Bridge driver version to 6.7.x that can resolve issue on temporarily basis.