This one comes with an additional chip which we were trying out when my previous partner in the electrickery projects pulled out owing to the way he was treated by some of those who bought the module.
I swore never to be involved in the financial side of these things but, here's the twist:-
I'd like £25 for the module, which I will then double and donate to a charity which has become very dear to my heart recently.
Anybody want it?