Well the page https://www.espruino.com/Web+Bluetooth directly describes what you asked for - "how to receive and send info from a website to the banglejs and back?" puck.js is the same as bangle.js in this regard. Or there is more generic page https://www.espruino.com/UART.js it is mostly the same but does not reference puck.js or try directly the demo https://www.espruino.com/try.php?page=UART.js&n=1 This allows you to connect to bangle.js and read internal temperature. The nonstandard service is named Nordic UART. Or maybe you mean WebIDE? https://www.espruino.com/ide/ there you connect and can directly write commands on left side.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Well the page https://www.espruino.com/Web+Bluetooth directly describes what you asked for - "how to receive and send info from a website to the banglejs and back?" puck.js is the same as bangle.js in this regard. Or there is more generic page https://www.espruino.com/UART.js it is mostly the same but does not reference puck.js or try directly the demo https://www.espruino.com/try.php?page=UART.js&n=1 This allows you to connect to bangle.js and read internal temperature. The nonstandard service is named Nordic UART. Or maybe you mean WebIDE? https://www.espruino.com/ide/ there you connect and can directly write commands on left side.