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60 lines
1.5 KiB
60 lines
1.5 KiB
4 years ago
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#include <ESP8266WiFi.h>
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#include <AddrList.h>
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#ifndef STASSID
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#define STASSID "your-ssid"
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#define STAPSK "your-password"
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#endif
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// preinit() is called before system startup
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// from nonos-sdk's user entry point user_init()
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void preinit() {
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// Global WiFi constructors are not called yet
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// (global class instances like WiFi, Serial... are not yet initialized)..
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// No global object methods or C++ exceptions can be called in here!
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//The below is a static class method, which is similar to a function, so it's ok.
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ESP8266WiFiClass::preinitWiFiOff();
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}
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void setup() {
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Serial.begin(115200);
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Serial.setDebugOutput(true);
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Serial.println("sleeping 5s");
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// during this period, a simple amp meter shows
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// an average of 20mA with a Wemos D1 mini
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// a DSO is needed to check #2111
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delay(5000);
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Serial.println("waking WiFi up, sleeping 5s");
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WiFi.forceSleepWake();
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// amp meter raises to 75mA
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delay(5000);
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Serial.println("connecting to AP " STASSID);
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WiFi.mode(WIFI_STA);
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WiFi.begin(STASSID, STAPSK);
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for (bool configured = false; !configured;) {
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for (auto addr : addrList)
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if ((configured = !addr.isLocal() && addr.ifnumber() == STATION_IF)) {
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Serial.printf("STA: IF='%s' hostname='%s' addr= %s\n",
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addr.ifname().c_str(),
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addr.ifhostname(),
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addr.toString().c_str());
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break;
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}
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Serial.print('.');
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delay(500);
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}
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// amp meter cycles within 75-80 mA
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}
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void loop() {
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}
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