Just wanted to share this https://itunes.apple.com/us/app/color-sender/id570765725?mt=8
I have been searching for a color picker iPhone app for weeks to control my BlinkMs with Electric Imp. It is the perfect app for what I need, nothing more and nothing less. Works great with http.onrequest. Use the following to return the control parm “s” to the app:
http.onrequest(function(req, res) {
local q = req.query;
…
res.send(200, q.s);
});