Wouldn't it be great if a universal standard existed for devices sending their diagnosis via audio?
If there is a microcontroller and a beeper in there anyway, at only the extra cost of internal memory?
Instead of a modem-type modulation and a speaker, make use of the bare minimum piezo beepers and send something that is universally understood? All of that without FCC, no extra hardware cost, no backchannel und thus little security considerations?
Yea - I know. Works much better to upsell "wifi enabled" and I'm happy that the appliances only beep rarely.
If there is a microcontroller and a beeper in there anyway, at only the extra cost of internal memory? Instead of a modem-type modulation and a speaker, make use of the bare minimum piezo beepers and send something that is universally understood? All of that without FCC, no extra hardware cost, no backchannel und thus little security considerations?
Yea - I know. Works much better to upsell "wifi enabled" and I'm happy that the appliances only beep rarely.