Search found 125 matches

by hassan789
Sat Jul 28, 2018 12:32 am
Forum: General Discussion
Topic: Using whitelist with resolvable random address
Replies: 5
Views: 253

Re: Using whitelist with resolvable random address

you can not filter on advertisement, since it is a broadcast.
by hassan789
Wed Jul 25, 2018 2:04 pm
Forum: General Discussion
Topic: Using whitelist with resolvable random address
Replies: 5
Views: 253

Re: Using whitelist with resolvable random address

You can see the UUID on scanning, just like you can see the mac.
by hassan789
Wed Jul 25, 2018 2:08 am
Forum: General Discussion
Topic: Power consumption to high!
Replies: 3
Views: 253

Re: Power consumption to high!

have you tied the latest v3.1 power save example? what is your current draw on this example project?
https://github.com/espressif/esp-idf/tr ... power_save
by hassan789
Wed Jul 25, 2018 2:03 am
Forum: General Discussion
Topic: Is it possible to add wifi p2p protocol based on idf 3.0?
Replies: 3
Views: 172

Re: Is it possible to add wifi p2p protocol based on idf 3.0?

you mean like BitTorrent? if no, what about "wifi mesh" or "ESP-now"?
by hassan789
Wed Jul 25, 2018 2:01 am
Forum: General Discussion
Topic: Using whitelist with resolvable random address
Replies: 5
Views: 253

Re: Using whitelist with resolvable random address

why can't you whitelist a custom UUID?
by hassan789
Wed Jul 25, 2018 1:55 am
Forum: ESP32 IDF
Topic: Faster DHCP IP
Replies: 3
Views: 260

Re: Faster DHCP IP

You can use RTC_DATA_ATTR to save your struct in RTC ram.
After your first DHCP, save ip, mask, and gateway into RTC. On subsequent boots, use with static IP. Remeber to set your DNS to your gateway address.
by hassan789
Mon Jul 23, 2018 9:42 pm
Forum: General Discussion
Topic: Gripes on ESP32/ESP-IDF
Replies: 28
Views: 1205

Re: Gripes on ESP32/ESP-IDF

Also, the MPU9250 has the worst i2c... I have used it with an CortexM4F, and it has gotten the bus stuck (needing to power cycle the chip)... I would not be so quick to blame the ESP32. I have since shifted to SPI... its faster and does not get stuck.
by hassan789
Mon Jul 23, 2018 9:40 pm
Forum: General Discussion
Topic: Gripes on ESP32/ESP-IDF
Replies: 28
Views: 1205

Re: Gripes on ESP32/ESP-IDF

The MPU9250 is quite old, I am surprised you are using it for a new project. The problem with it is, the MPL software is on your host processor, which means any missing gyro data can mess the whole algo. Also, it is VERY sensitive to mag calibration, if it is not calibrated correctly, your reading w...
by hassan789
Mon Jul 23, 2018 7:55 pm
Forum: General Discussion
Topic: Gripes on ESP32/ESP-IDF
Replies: 28
Views: 1205

Re: Gripes on ESP32/ESP-IDF

Also, just for the record, the FreeRTOS drivers for the ESP32 are amazing, this is the main reason I love this chip. The ESP-IDF is reliable and makes life easy for 99% of applications...
by hassan789
Mon Jul 23, 2018 7:21 pm
Forum: ESP32 IDF
Topic: Faster DHCP IP
Replies: 3
Views: 260

Re: Faster DHCP IP

Yes, the easiest way is to save the DHCP lease in RTC memory.
Every 20 connections renew DHCP...

The alternative is very complex, and I have a thread here that talks about this:
https://github.com/espressif/esp-idf/issues/799

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