Import libraries in external components

ESPHome
1

Hello everyone.
I’m trying to create an external component to communicate with an (Aurora) inverter. The idea is to use an existing library (which I’m using successfully with arduino ide - link to github) in the component.
Said library requires HardwareSerial to be initialized, like so:

HardwareSerial mySerial(2);
Aurora inverter = Aurora(2, &mySerial, 5);

But I could not get HardwareSerial to work. Here is what I get when using it:

src/esphome/components/empty_sensor/empty_sensor.cpp:13:1: error: 'HardwareSerial' does not name a type
   13 | HardwareSerial mySerial = HardwareSerial(2);
      | ^~~~~~~~~~~~~~

Importing like the following doesn’t help as well:

#import "HardwareSerial.h"; //Same using <HardwareSerial.h>

I get:

src/esphome/components/empty_sensor/empty_sensor.cpp:7:10: fatal error: HardwareSerial.h: No such file or directory

In other topics it seems to work without even importing (like here), is maybe imported with a yaml directive?

Thanks in advance

P.s. I’m also open to other solutions to work with Aurora inverters. I found a repo on github (michelsciortino/esphome-aurora-inverter - apparently I cannot link it, as I’m a new user) but it uses a custom component, which is not supported anymore.

2

I found this discussion, I don’t know if you saw it, I’m also looking for a solution to have my power one on home assistant via esphome, but I haven’t succeeded yet:

3

Has the magic to include libraries.

HardwareSerial is its name.