jannik/esp32-sensornode
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[CODE] remember when wifi connect failed + fix reconnect sleep time

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This commit is contained in:
Jannik Beyerstedt 2018-08-04 13:13:35 +02:00
parent f967676088
commit c56085613d
1 changed files with 27 additions and 24 deletions
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41
main/esp32-sensornode_main.cpp
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@ -65,7 +65,9 @@ String serviceUri = "/write?db=test";
#endif
/* GLOBAL VARIABLES */
const unsigned int wifiConnectTimeout = 30; /* num of 500ms intervals */
const uint16_t wlanConnectCheckInterval = 250; /* milli seconds: poll wifi.state after wifi.begin() */
const uint16_t wlanConnectTimeout = 15000; /* milli seconds */
RTC_DATA_ATTR uint8_t wlanConnectFailCnt = 0;
Si7021 si7021 = Si7021();
float temp = 0.0;
@ -74,7 +76,7 @@ float humi = 0.0;
uint16_t battLevel = 0;
float battPerc = 0.0;
RTC_DATA_ATTR uint8_t sampleCnt = 0;
RTC_DATA_ATTR uint8_t sampleCnt = 0; // for average value
RTC_DATA_ATTR float tempAccu = 0.0; // for average value
RTC_DATA_ATTR float humiAccu = 0.0; // for average value
@ -102,11 +104,10 @@ bool wlanConnect(void) {
WiFi.mode(WIFI_STA);
WiFi.begin(wlan_ssid, wlan_passwd);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
delay(wlanConnectCheckInterval);
INFO_PRINT(".");
cycles++;
if (cycles > wifiConnectTimeout) {
if (cycles > wlanConnectTimeout / wlanConnectCheckInterval) {
INFO_PRINTLN(" FAILED");
return false;
}
@ -154,10 +155,10 @@ void printWakeupReason() {
}
extern "C" void app_main() {
// ESP32 Setup
initArduino();
pinMode(4, OUTPUT);
digitalWrite(4, HIGH);
//do your own thing
#ifdef PRINT_INFO
Serial.begin(115200);
@ -173,10 +174,6 @@ extern "C" void app_main() {
printWakeupReason();
#endif
// switch WiFi off for the moment
DEBUG_PRINTLN("[DEBUG] Turning wifi off for now");
WiFi.mode(WIFI_OFF);
// setup the si7021 sensor
if (false == si7021.begin()) {
INFO_PRINTLN("[ERROR] SI7021 not set up properly");
@ -200,16 +197,14 @@ extern "C" void app_main() {
#ifdef PRINT_INFO
Serial.printf("[INFO ] > Humidity: %5.2f Temperature: %5.2f", humi, temp);
Serial.printf(" Battery Bat: %5.1f /100 (raw: %4d)\n", battPerc, battLevel);
Serial.printf(" Battery Bat: %5.1f/100 (raw: %4d)\n", battPerc, battLevel);
#endif
/* ---------- MAIN LOGIC START ---------- */
// accumulate and average $sampleAvgNum samples before sending data
if (sampleCnt < sampleAvgNum) {
sampleCnt++;
tempAccu += temp;
humiAccu += humi;
}
// calculate average and send data, if $sampleAvgNum are reached
if (sampleCnt >= sampleAvgNum) {
@ -217,9 +212,6 @@ extern "C" void app_main() {
INFO_PRINTLN("[INFO ] Enough samples collected -> send average to database");
temp = tempAccu / (float)sampleCnt;
humi = humiAccu / (float)sampleCnt;
sampleCnt = 0;
tempAccu = 0;
humiAccu = 0;
#ifdef PRINT_INFO
Serial.printf("[INFO ] < Humidity: %5.2f Temperature: %5.2f\n", humi, temp);
#endif
@ -253,6 +245,13 @@ extern "C" void app_main() {
if (line.indexOf("204") == -1) { // expect a HTTP 204 status code
INFO_PRINTLN("[ERROR]: invalid http status code");
INFO_PRINTLN(line);
} else { // successful database submission
// reset average after successful database submission
sampleCnt = 0;
tempAccu = 0;
humiAccu = 0;
wlanConnectFailCnt = 0;
}
break;
} else {
@ -270,11 +269,15 @@ extern "C" void app_main() {
} else { // ELSE: !wifiConnect
/* WIFI CONNECT FAILED, WAIT MAX 5 MINUTES IN DEEP SLEEP */
INFO_PRINTLN("[INFO ] WiFi connect failed -> wait a bit and try again");
if (sendInterval_sec > (5 * 60)) {
wlanConnectFailCnt++;
#ifdef PRINT_INFO
Serial.printf("[INFO ] WiFi connect failed %d time(s) -> wait %03d s and try again\n",
wlanConnectFailCnt, sampleInterval_sec);
#endif
if (sampleInterval_sec > (5 * 60)) {
doDeepSleep(5 * 60);
} else {
doDeepSleep(sendInterval_sec);
doDeepSleep(sampleInterval_sec);
}
} // ENDIF: wifiConnect