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
Search found 156 matches
- Mon Jul 23, 2018 7:21 pm
- Forum: ESP-IDF
- Topic: Faster DHCP IP
- Replies: 4
- Views: 7482
- Mon Jul 23, 2018 7:17 pm
- Forum: ESP-IDF
- Topic: WiFi with automatic light sleep
- Replies: 10
- Views: 15760
Re: WiFi with automatic light sleep
Just an idea,
is your ssid broadcast set to 1mbps mode? if not, I have had some issues.. if you can't tell from your router, you can check via wireshark wifi adapter OR you can put the ESP in promiscuous mode and inspect the packet.
is your ssid broadcast set to 1mbps mode? if not, I have had some issues.. if you can't tell from your router, you can check via wireshark wifi adapter OR you can put the ESP in promiscuous mode and inspect the packet.
- Mon Jul 23, 2018 7:10 pm
- Forum: General Discussion
- Topic: BLE low power status
- Replies: 8
- Views: 14101
Re: BLE low power status
If you wan't always on BLE advertiser, the theoretical lower limit of the ESP32 is ~0.8mA (per section 30.3.9 in the TRM). This the lowest it can ever go. In reality, my estimate is on the order of 1mA. For most BLE applications, this is insanely high.
- Mon Jul 23, 2018 7:03 pm
- Forum: General Discussion
- Topic: sleep mode and restarting Wifi
- Replies: 9
- Views: 25218
Re: sleep mode and restarting Wifi
1. is this light-sleep, or deep-sleep?
2. have you tested the wifi power-save example already?
https://github.com/espressif/esp-idf/tr ... power_save
2. have you tested the wifi power-save example already?
https://github.com/espressif/esp-idf/tr ... power_save
- Mon Jul 23, 2018 6:45 pm
- Forum: General Discussion
- Topic: Gripes on ESP32/ESP-IDF
- Replies: 51
- Views: 62244
Re: Gripes on ESP32/ESP-IDF
How often do you read gyro & accel data? Are you sure that you catch the new data every single time (you don't miss every second for example)? How powerful was the CPU you were using? I worked on quadrotor uav 8 years ago. I used to read adc at 1kHz gyro+accel+mag, then apply a complimentary filter...
- Sun Jul 22, 2018 8:33 pm
- Forum: General Discussion
- Topic: BT and WiFi bandwidth speeds
- Replies: 3
- Views: 13302
Re: BT and WiFi bandwidth speeds
I'm getting 12mbps+ running the ipref server on my laptop.
- Sun Jul 22, 2018 5:56 am
- Forum: General Discussion
- Topic: BT and WiFi bandwidth speeds
- Replies: 3
- Views: 13302
Re: BT and WiFi bandwidth speeds
Have you read this documentation?
https://esp-idf.readthedocs.io/en/lates ... throughput
Run the iperf example... it is tuned for fastest speed.
https://esp-idf.readthedocs.io/en/lates ... throughput
Run the iperf example... it is tuned for fastest speed.
- Sun Jul 22, 2018 5:52 am
- Forum: General Discussion
- Topic: Gripes on ESP32/ESP-IDF
- Replies: 51
- Views: 62244
Re: ESP32 not ready for production
FreeRTOS works only with tick frequency. Once you need to wait for something inside a driver you will wait for 1 ms with 1000 Hz tick frequency. In FreeRTOS you can get microsecond-level responsiveness... You can study this: https://www.freertos.org/a00124.html I have written hobby code for quadrot...
- Tue Jul 03, 2018 6:09 pm
- Forum: ESP-IDF
- Topic: WiFi with automatic light sleep
- Replies: 10
- Views: 15760
Re: WiFi with automatic light sleep
looks like you are getting a beacon timeout from the AP. Issue seems to be with your AP. more details here: https://esp-idf.readthedocs.io/en/v3.1-beta1/api-guides/wifi.html#wi-fi-reason-code You can try these things: 1. check to make sure the beacon TIM interval is 100ms on your router/AP 2. Try a ...
- Thu Jun 28, 2018 3:08 am
- Forum: ESP-IDF
- Topic: WiFi with automatic light sleep
- Replies: 10
- Views: 15760
Re: WiFi with automatic light sleep
1. can you post the disconnect reason? "event->event_info.disconnected.reason"
2. What RSSI are you at when this happens?
2. What RSSI are you at when this happens?