STLink V3/V2 library using WebUSB

RTT

Demo application using Segger RTT protocol:

https://phryniszak.github.io/jstlink/sample_rtt/

Troubleshooting WebUSB

https://support.microbit.org/support/solutions/articles/19000105428-webusb-troubleshooting https://github.com/devanlai/webdfu#host-side-implementation

jstlink on mobile phone