I get the following errors during compiling, those function don't seem to exist?

src/main.cpp: In function 'void loop()':
src/main.cpp:38:29: error: 'class HardwareSerial' has no member named 'peekAvailable'
auto available = Serial.peekAvailable();
^
src/main.cpp:40:30: error: 'class HardwareSerial' has no member named 'peekBuffer'
auto buffer = Serial.peekBuffer();
^
src/main.cpp:43:20: error: 'class HardwareSerial' has no member named 'peekConsume'
Serial.peekConsume(written);
^
src/main.cpp:47:20: error: 'class HardwareSerial' has no member named 'peekConsume'
Serial.peekConsume(0);

Hi Davy,

Thanks for sharing this project. I have flashed it and I can connect via telnet and see the data.
However; which Home-Assistant integration should connect to this host?

Regards,

Frank

Hi, i am sorry for asking a question that maybe stupid. I was looking at https://github.com/daniel-jong/esp8266_p1meter an build this board. Loading the .INO gave me some errors and lookin on the issues tab, i came across this solution. Coulbe be the way to go for me, want to test it. I understand that i have to rename the secret file after i edited it. But how do i load youre files onto the ESP? I expected a .INO file. Thanks!

D1 mini configuration and wiring all good. In HA, the device is recognised and provides 10 entities with data value "unknown".
My meter is a Iskra AM550 and I am in Switzerland.

Where should I start to look for a solution?