Now there is a BT stack with SPP available: https://github.com/bluekitchen/btstack/tree/master/port/esp32 . It seems to be free for private use only. Did anybody test it? Not yet. Keep in mind, for the patient, they're working on the support for that in IDF. There might be another work in progress ...

Modem sleep should work when radio is not needed regardless of whether task is paused. What type of context the actual switching in/out of modem sleep uses is another question, probably interrupt + preempt. For light sleep, that should occur when task is paused assuming other conditions ok but I do...

scan time max is 256? if you put a start scan in the scan complete case of the event handler how much would you actually lose? In reality, not over much. Timings for BLE announcement are largely terms of milliseconds and typically things you're scanning for will transmit on all three channels based...

Now, if you wanted to port Zephyr or one of the other nifty IOT platforms... >:-D https://jira.zephyrproject.org/browse/ZEP-2030 X-D Oh, this gets better by the minute- thanks for sharing that. I didn't have enough insight into their community to know what they were/weren't doing. Makes for more sa...

Other than the, "because I could," aspect of a port, I don't know if there's any value there. Not enough RAM. Now, if you wanted to port Zephyr or one of the other nifty IOT platforms... >:-D While IDF is shaping up nicely, I'm sure they'd still welcome a bit of competition from some of the other pl...

Totally agree with you, @madscientist_42. What I'm saying is that while the power management is not ready, more hardware means more power consumption, and only the CPU without any radio enabled runs much cooler than when I enable the Bluetooth stack. Still, the duty cycle of CPU tasks should be kep...

FYI: The BT(LE) drivers in esp-idf as of now aren't optimized for power yet, so while the hardware should support low-power modes, there's no software to use them yet. We're working on getting the needed changes, however. Yeah, most of the hardcore types in the forums "get" it. :D Thanks for the in...

It's less that you've got Dual Mode that there's power consumption. Classic and LE simultaneous doesn't consume much more juice than LE by itself. Real differences between LE and Classic: - Channel Hopping Sequence is simplified. For Advertising it's not really hopping - Modulation Index changed fro...

Oh I forgot to add smart TVs. The touchpad remote for my Panasonic is also BLE-based, and it has smaller batteries than the standard IR remote. I was thinking about getting Apple keyboard/trackpad for my MacBook Pro, with the hope that they might work with the TV also. I was experimenting with a gy...

Hi, Is it possible to implement a battery-powered BLE device with low power consumption right now (a beacon, for example)? I have disabled the Wifi from menuconfig, but the device still heats up while running BLE examples (both esp-idf and Arduino). You need to implement sleep mode stuff and very p...