ESP32 Forum

Posted: **Sat Aug 16, 2025 6:45 pm**

I want to determine the arrival time of BLE advertisements with sub-nanosecond jitter. I do have an external sub-nanosecond time clock. Is there any way to have an ESP32 (esp. ESP32-H4) toggle a GPIO when a BLE advertisement is received?

Posted: **Sun Aug 17, 2025 6:03 am**

"...with sub-nanosecond jitter.."!!! Why would you need that. Can you give us some background?
And why BLE advertising packet and not any packet flying on 2.4GHz band

ESP32 Forum

BLE Time of Arrival (ToA)

BLE Time of Arrival (ToA)

Re: BLE Time of Arrival (ToA)