BLE-only power consumption

WiFive
Posts: 3090
Joined: Tue Dec 01, 2015 7:35 am

Re: BLE-only power consumption

Postby WiFive » Wed Aug 07, 2019 3:57 am

Esp32: ADV(adv_interval = 1000.0ms) average current 2.55mA
nRF52810: (Interval 805.00 ms) average current 9.3 µA

Only a factor of 275. It seems like it should be possible to do a beacon/advertiser from a wake stub and use way less power than light sleep. Something like the very first bt examples https://github.com/espressif/esp-idf/bl ... n/app_bt.c

kwinzman
Posts: 3
Joined: Tue Dec 31, 2019 4:42 pm

Re: BLE-only power consumption

Postby kwinzman » Thu Jan 28, 2021 7:13 pm

So to summarize the ESP32 takes about 3mA, even with the optional 32Mhz Crystal,
while third party Bluetooth focused chips take about 10 µA. That's a huge difference!

Can we expect to see an improvement in this area with the upcoming ESP32-S3?

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