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'the other Espruino based devices also look interesting'
I originally started with the Pico for it's fast accessibility, just plug it into your PC USB port and y'er up and running.
But now, I'm after the extras with the MDBT42Q breakout board. If connecting via the web and the browser is your goal, the Espruino WiFi has horsepower for that task. Need a display mounted as an Arduino shield, Pixl.js it is. Puck.js is a simple coin size button.
Wow.
Thanks for your quick and comprehensive reply. I will certainly have a good look at those links.
Yes, I do have a Bangle, although the other Espruino based devices also look interesting.