Im trying to receive mqtt data and write this to software serial to communicate with the serial connection on my spapool from a nodemcu but am having issues with this conversion. void onConnectionEstablished() { client.subscribe("/spanet/serialdata/rx", [] (const String &payload) { Serial.p…

[image] shanekuz: swSer.write(payload); use swSer.write(payload.c_str()); https://www.cplusplus.com/reference/string/string/c_str/

Const String to String issues

J-M-L October 27, 2021, 7:47am 8

Did you use print or println?

Topic		Replies	Views
string problem with software serial write Programming	7	10949	May 5, 2021
Problems with SoftwareSerial and Strings Programming	4	11835	May 5, 2021
Serial.write error Programming	22	11347	May 5, 2021
SoftwareSerial and new String object Bugs & Suggestions	5	2718	May 6, 2021
no known conversion from String to const char* error Programming	11	5876	May 5, 2021