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3df5693697
The NONOS SDK's `struct bss_info` in `user_interface.h` has grown since the beginning of this project. The additional elements are not accessible. Add a method for R/O access to full `struct bss_info`. See #7965 (comment)
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/*
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This sketch demonstrates how to scan WiFi networks.
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The API is almost the same as with the WiFi Shield library,
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the most obvious difference being the different file you need to include:
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*/
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#include <ESP8266WiFi.h>
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void setup() {
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Serial.begin(115200);
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Serial.println(F("\nESP8266 WiFi scan example"));
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// Set WiFi to station mode
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WiFi.mode(WIFI_STA);
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// Disconnect from an AP if it was previously connected
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WiFi.disconnect();
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delay(100);
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}
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void loop() {
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String ssid;
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int32_t rssi;
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uint8_t encryptionType;
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uint8_t *bssid;
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int32_t channel;
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bool hidden;
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int scanResult;
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Serial.println(F("Starting WiFi scan..."));
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scanResult = WiFi.scanNetworks(/*async=*/false, /*hidden=*/true);
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if (scanResult == 0) {
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Serial.println(F("No networks found"));
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} else if (scanResult > 0) {
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Serial.printf(PSTR("%d networks found:\n"), scanResult);
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// Print unsorted scan results
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for (int8_t i = 0; i < scanResult; i++) {
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WiFi.getNetworkInfo(i, ssid, encryptionType, rssi, bssid, channel, hidden);
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// get extra info
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const bss_info *bssInfo = WiFi.getScanInfoByIndex(i);
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String phyMode;
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const char *wps = "";
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if (bssInfo) {
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phyMode.reserve(12);
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phyMode = F("802.11");
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String slash;
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if (bssInfo->phy_11b) {
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phyMode += 'b';
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slash = '/';
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}
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if (bssInfo->phy_11g) {
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phyMode += slash + 'g';
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slash = '/';
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}
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if (bssInfo->phy_11n) {
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phyMode += slash + 'n';
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}
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if (bssInfo->wps) {
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wps = PSTR("WPS");
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}
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}
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Serial.printf(PSTR(" %02d: [CH %02d] [%02X:%02X:%02X:%02X:%02X:%02X] %ddBm %c %c %-11s %3S %s\n"), i, channel, bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5], rssi, (encryptionType == ENC_TYPE_NONE) ? ' ' : '*', hidden ? 'H' : 'V', phyMode.c_str(), wps, ssid.c_str());
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yield();
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}
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} else {
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Serial.printf(PSTR("WiFi scan error %d"), scanResult);
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}
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// Wait a bit before scanning again
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delay(5000);
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}
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