arduino/esp8266
1
0
Fork 0
mirror of https://github.com/esp8266/Arduino.git synced 2025-04-21 10:26:06 +03:00
Code

Refactor WiFi scan example (#7655)

Browse Source
This commit is contained in:
Erriez 2020-10-27 11:20:07 +01:00 committed by GitHub
parent c65626622a
commit 95de525af9
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
libraries/ESP8266WiFi/examples/WiFiScan/WiFiScan.ino
View File

@ -3,43 +3,57 @@
The API is almost the same as with the WiFi Shield library,
the most obvious difference being the different file you need to include:
*/
#include "ESP8266WiFi.h"
#include <ESP8266WiFi.h>
void setup() {
Serial.begin(115200);
Serial.println(F("\nESP8266 WiFi scan example"));
// Set WiFi to station mode and disconnect from an AP if it was previously connected
// Set WiFi to station mode
WiFi.mode(WIFI_STA);
// Disconnect from an AP if it was previously connected
WiFi.disconnect();
delay(100);
Serial.println("Setup done");
}
void loop() {
Serial.println("scan start");
String ssid;
int32_t rssi;
uint8_t encryptionType;
uint8_t* bssid;
int32_t channel;
bool hidden;
int scanResult;
// WiFi.scanNetworks will return the number of networks found
int n = WiFi.scanNetworks();
Serial.println("scan done");
if (n == 0) {
Serial.println("no networks found");
} else {
Serial.print(n);
Serial.println(" networks found");
for (int i = 0; i < n; ++i) {
// Print SSID and RSSI for each network found
Serial.print(i + 1);
Serial.print(": ");
Serial.print(WiFi.SSID(i));
Serial.print(" (");
Serial.print(WiFi.RSSI(i));
Serial.print(")");
Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE) ? " " : "*");
delay(10);
Serial.println(F("Starting WiFi scan..."));
scanResult = WiFi.scanNetworks(/*async=*/false, /*hidden=*/true);
if (scanResult == 0) {
Serial.println(F("No networks found"));
} else if (scanResult > 0) {
Serial.printf(PSTR("%d networks found:\n"), scanResult);
// Print unsorted scan results
for (int8_t i = 0; i < scanResult; i++) {
WiFi.getNetworkInfo(i, ssid, encryptionType, rssi, bssid, channel, hidden);
Serial.printf(PSTR(" %02d: [CH %02d] [%02X:%02X:%02X:%02X:%02X:%02X] %ddBm %c %c %s\n"),
i,
channel,
bssid[0], bssid[1], bssid[2],
bssid[3], bssid[4], bssid[5],
rssi,
(encryptionType == ENC_TYPE_NONE) ? ' ' : '*',
hidden ? 'H' : 'V',
ssid.c_str());
delay(0);
}
} else {
Serial.printf(PSTR("WiFi scan error %d"), scanResult);
}
Serial.println("");
// Wait a bit before scanning again
delay(5000);