mathieu/Adafruit_MQTT_Library
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Switch back to calling dtostrf for float to string (snprintf doesn't work by design on ESP8266).

Browse Source
This commit is contained in:
Tony DiCola 2015-06-19 01:23:29 -07:00
parent ad33b0b738
commit ea7549445b
1 changed files with 1 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Adafruit_MQTT.cpp
View File

@ -365,13 +365,7 @@ bool Adafruit_MQTT_Publish::publish(int32_t i) {
bool Adafruit_MQTT_Publish::publish(double f, uint8_t precision) {
char payload[40]; // Need to technically hold float max, 39 digits and minus sign.
#if defined(ARDUINO_ARCH_AVR)
// Use avrlibc dtostre function on AVR platforms.
dtostrf(f, 0, precision, payload);
#else
// Otherwise fall back to snprintf on other platforms.
snprintf(payload, sizeof(payload)-1, "%f", f);
#endif
dtostrf(f, 0, precision, payload);
return mqtt->publish(topic, payload, qos);
}