In the discussion around around here, i got the impression that there is a lack of affordable WiFi-based sensors to plug into existing home automation systems.
With this I mean sensors for temperature + humidity, pressure, IR/UV Light, Dust, CO2, Motion, etc. But also some Wifi Button, Wifi Light, Relay, TFT display
Reading the forum, and browsing some product offerings - i can see that the majority uses XBee, which is low-power but the price tag for some may be a bit high. Or there are end-user-devices that use their own app/protocol also costing a lot. And finally there is the DIY class, where one can buy the modules, assemble and program them, but not everybody is happy with soldering, wires, etc.
I may be wrong of course in my assumption
But based on it i wonder if you would be interested in a new series of devices i would like to produce. The key design drivers would be: cost, integration, ease of operation.
They will come in a (nice) 3D printed box, will not have a state-of-the art mobile app for configuration. But they will be as cheap as it gets, integrate easily with an existing HA system, or some online data services. Send data over HTTP or MQTT. And configuration will be done over Wifi or USB Cable. Since Wifi uses lots of power, maybe they will not work too much on batteries.
The prices which i target will be around 10 eur for the bare device (only a button and RGB Led), and then 5-6 eur for each additional sensor (45 for co2 and 50 for dust). So a Wifi Temp/Humidity sensor will be no more than 16-18 eur.
I will most probably start it on Indiegogo, to get some scale so that i can match those prices.
I am really keen on making those (Also as part of another project), and I will be very thankful if you could share some feedback on feasibility, pricing, scope, etc
Thanks in advance, Vladimir