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

gfvalvo October 27, 2021, 12:01pm 16

Agreed. But when someone claims that a known-working feature "Doesn't Work", I suspect problems elsewhere in the (unposted) code.

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