SOLVED - Not Stack overflow but readvdd33 shouldnt be used
Posted: Sun Sep 06, 2015 11:44 amHi chaps,
Ive just updated my arduino ide support for the ESP8266 to the latest stable version.
But a previously working program using the sleep timers is now playing up.
Im using an ESP8266-12 on a breadboard exactly as I did when it was working under the previous Stable version.
Usually I use the board definition for the Nodemcu for the esp8266-12.
I have also tried the generic definition but it still fails.
I notice that the board definitions now mentions spiffs does this reduce the memory available?
Im getting what seems to be a stack overflow after it connects to the wifi router.
This will happen after a couple of sleep and restarts
The ESP then reboots and can no longer connect to the wifi router.
I get this in the serial monitor:
Ive added a count into the loop waiting for the connection so that the ESP restarts after 20 iterations of the loop. As previously it would have connected by then. Hoping that a restart would clear whatever is causing the problem.
But it hasnt helped.
Heres my code:
Ill leave this posted here in case anyone else is having problems and can point me to a solution or tell me what the message in the serial monitor means.
If I dont get much response Ill raise it on the ESP8266 Arduino GitHub project.
Thanks
Gordon
Ive just updated my arduino ide support for the ESP8266 to the latest stable version.
But a previously working program using the sleep timers is now playing up.
Im using an ESP8266-12 on a breadboard exactly as I did when it was working under the previous Stable version.
Usually I use the board definition for the Nodemcu for the esp8266-12.
I have also tried the generic definition but it still fails.
I notice that the board definitions now mentions spiffs does this reduce the memory available?
Im getting what seems to be a stack overflow after it connects to the wifi router.
This will happen after a couple of sleep and restarts
The ESP then reboots and can no longer connect to the wifi router.
I get this in the serial monitor:
Code: Select all
ctx: cont
sp: 3ffea830 end: 3ffeaa90 offset: 01b0
>>>stack>>>
3ffea9e0: 40208d19 3ffe9a44 3ffeaad0 42020000
3ffea9f0: 41ae6666 3ffe9778 3ffe9a44 3ffe9728
3ffeaa00: 3ffe9728 00000000 00000000 3ffe9728
3ffeaa10: 3ffe9728 4020234c 3ffe9a44 3ffe9778
3ffeaa20: 42020000 3ffe9778 3ffe9a44 40202347
3ffeaa30: 00000000 00000000 00000000 00000000
3ffeaa40: 00000000 00000000 00000000 00000000
3ffeaa50: 00000000 00000000 00000000 00000000
3ffeaa60: 00000000 00000000 00000000 3ffeaabc
3ffeaa70: 3fffdc20 00000000 3ffeaab4 4020183f
3ffeaa80: 00000000 00000000 3ffe9a70 40100378
<<<stack<<<
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Ive added a count into the loop waiting for the connection so that the ESP restarts after 20 iterations of the loop. As previously it would have connected by then. Hoping that a restart would clear whatever is causing the problem.
But it hasnt helped.
Heres my code:
Code: Select all
#include <DHT.h>
#include <ESP8266WiFi.h>
extern "C" {
#include "user_interface.h"
uint16 readvdd33(void);
}
// replace with your channel's thingspeak API key,
String apiKey = "N33F4IRBI8EI8K8J";
const char* ssid = "ThisOldHouse";
const char* password = "thingstodoinalandrover";
const char* server = "api.thingspeak.com";
#define DHTPIN 2 // what pin we're connected to
//const unsigned long SLEEP_INFTERVAL = 10 * 60 * 1000 * 1000; // 10 minutes
const unsigned long SLEEP_INFTERVAL = 30 * 1000 * 1000; // 30 seconds
DHT dht(DHTPIN, DHT22,15);
WiFiClient client;
void setup() {
Serial.begin(57600);
delay(10);
dht.begin();
WiFi.begin(ssid, password);
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
int c = 0;
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
c++;
if (c > 20){ESP.restart();}
}
Serial.println("");
Serial.println("WiFi connected");
// ################################ get and send reading
float h = dht.readHumidity();
float t = dht.readTemperature();
float vdd = readvdd33() / 1000.0;
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
Serial.println();
Serial.print("Temperature: ");
Serial.print(t);
Serial.print("c - Humidity: ");
Serial.print(h);
Serial.print("% - Voltage: ");
Serial.print(vdd);
Serial.println("v ");
Serial.println();
Serial.println("Send to Thingspeak");
Serial.println();
while (!client.connect(server, 80)) {
Serial.println("connection failed, retrying...");
}
String postStr = apiKey;
postStr +="&field1=";
postStr += String(t);
postStr +="&field2=";
postStr += String(h);
postStr +="&field3=";
postStr += String(vdd);
postStr += "\r\n\r\n";
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(postStr.length());
client.print("\n\n");
client.print(postStr);
// wait for response
while(!!!client.available()) {
delay(10);
}
// Read all the lines of the reply from server and print them to Serial
Serial.println("Response: ");
while(client.available()){
String line = client.readStringUntil('\r');
Serial.print(line);
}
Serial.println();
Serial.println("closing connection");
client.stop();
Serial.print("up time: ");
Serial.print(millis());
Serial.print(", deep sleep for ");
Serial.print(SLEEP_INFTERVAL / 1000000);
Serial.println(" secs...");
system_deep_sleep_set_option(0);
system_deep_sleep(SLEEP_INFTERVAL - micros());
}
void loop() {
}
Ill leave this posted here in case anyone else is having problems and can point me to a solution or tell me what the message in the serial monitor means.
If I dont get much response Ill raise it on the ESP8266 Arduino GitHub project.
Thanks
Gordon