A library for configuring Wifi and Blynk credentials dynamically

[PeteKnight]

There’s an example of how to use the Ticker library in the code in this post:

Alternative to Sonoff S20 EU Type F Smart Socket

Updated 28/03/2018: The picture I’d originally posted had the wrong solder pad labelled as the Tx pin. Many thanks to Michael Harwerth for pointing this out. The photo below is now correct. I’ve been using Sonoff S20’s for a while, both at home in the UK and at our holiday home in Spain. The one thing I don’t like about them is their size and the position of the physical button. I came across these on eBay recently and decided to order one and have a play with it: [Updated link, as the prev…

Pete.