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time to connect wifi with static ip #261

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chaeplin opened this issue May 18, 2015 · 2 comments
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time to connect wifi with static ip #261

chaeplin opened this issue May 18, 2015 · 2 comments

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@chaeplin
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I have tested a simple sketch.

https://gist.github.com/chaeplin/190ba7175d1e8098a629

time to connect wifi with static ip
---> power on : 2.018 sec
---> reset with deepsleep : 1.109 sec

Is there a way to set a channel(skip scanning) ?
@chaeplin chaeplin changed the title how to reduce time to connect wifi with static ip time to connect wifi with static ip May 20, 2015
@chaeplin
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extern "C"{
#include "user_interface.h"
}


  WiFi.begin(ssid, password);
  wifi_set_channel(7);

@Links2004 Links2004 mentioned this issue May 21, 2015
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@chaeplin chaeplin mentioned this issue Jul 4, 2015
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igrr pushed a commit that referenced this issue Oct 29, 2015
@Links2004
ESP8266WiFi extended functions
bc37b9e 
 - begin changes
     allow setting BSSID/MAC and Channel of an AP for faster connection (#261)
     now checks if ssid and passphrase to big
     selecting Wifi mode in better way (fix for #28)

 - ESP8266WiFiMulti uses the new functions to auto select best AP even in a multi AP WiFi network (more the one AP has same SSID)

 - add new functions to get current Connected AP:
     uint8_t * BSSID(void);
     int32_t Channel(void);

 - add new functions to get infos from scanned networks:
     uint8_t * BSSID(uint8_t networkItem);
     int32_t Channel(uint8_t networkItem);
     bool isHidden(uint8_t networkItem);
     bool getNetworkInfo(uint8_t networkItem, const char** ssid, uint8_t * encryptionType, int32_t * RSSI, uint8_t ** BSSID, int32_t * channel, bool * isHidden);
@Tareq-Sulaiman
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Tareq-Sulaiman commented Mar 26, 2018 •
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The best I could achieve is 1.45 seconds when powered on.
With reset 185 mS.
You need to add the channel and the bssid(MAC address of the AP), and of course a static IP address.

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@chaeplin @Tareq-Sulaiman