Issue with snprintf function in ESP8266
Posted: Sat Oct 26, 2019 7:14 amFollowing code doesn't show any compile error. Upload to ESP module is also successful.
But after successful upload, ESP module continues restating.
If I remove snprintf function it is ok.
void html_page(){
int sec = millis() / 1000;
int min1 = sec / 60;
int hr = min1 / 60;
const char dataHTML[]=R"RAW(
<html>
<body>
<p>Uptime: %d:%d:%d</p>
</body>
</html>
)RAW";
snprintf(page,100,dataHTML,sec,min1,hr);
Serial.println(page);
server.send(200, "text/html", page);
}
But after successful upload, ESP module continues restating.
If I remove snprintf function it is ok.
void html_page(){
int sec = millis() / 1000;
int min1 = sec / 60;
int hr = min1 / 60;
const char dataHTML[]=R"RAW(
<html>
<body>
<p>Uptime: %d:%d:%d</p>
</body>
</html>
)RAW";
snprintf(page,100,dataHTML,sec,min1,hr);
Serial.println(page);
server.send(200, "text/html", page);
}