Good day everyone!
While the tittle of the thread is vague, I hope my question is not.
For what I've learned, Bluetooth 4.0 "Low Energy" is a protocol that efficiently exchanges small packages of data. Physically, both Classic and LE uses 2.4GHz and the same antenna, but different modulation.
Ok, considering I own 2 BLE capable devices (an ESP32 BLE and my Android phone) I decided to program them following Bluetooth Classic examples and tutorials because it's way easier to just do Bluetooth Serial for my project.
What happens next? The devices' Bluetooth chip don't use BLE and therefore are more power consuming?
According to Wikipedia, Classic is 1W while BLE is 0.01 to 0.5W.
But is it really noticeable? I mean, the data transmission will be very low (a few bytes from time to time to control some elements), but I imagine the fact that both devices are paired and connected will imply a periodic exchange of info make sure they are still that way. And in that case the BLE is way more efficient.
Thanks for your help!