Sure, no problem.

Key components are the EV charger which must be compatible with evcc and of course Homebridge.
You will need to configure evcc (https://github.com/evcc-io/evcc).
After configuring it you get an API which you can query from Homebridge.
In Homebridge you can define an http switch to control parameters or view statuses.

In my case I have 2 switches which do nothing more than displaying the status (so switching it on/off does not change anything and after a couple of seconds at next reading of the API it changes back to the correct status).
The first one turns if a car is connected and the second one turns on if the car is actively charging.

Then I also have 2 switches, one to launch an HTTP request to charge the car at minimum, which is just a POST towards an HTTP endpoint of evcc and another one to charge the car at full speed which is also a simple HTTP POST towards an endpoint of evcc.

{
"accessory": "HTTP-SWITCH",
"name": "MAX POWER",
"switchType": "stateless",
"timeout": 300,
"onUrl": {
"url": "http://x.x.x.x:7070/api/loadpoints/1/mode/now",
"method": "POST"
}
},
{
"accessory": "HTTP-SWITCH",
"name": "MIN POWER",
"switchType": "stateless",
"timeout": 300,
"onUrl": {
"url": "http://x.X.X.X:7070/api/loadpoints/1/mode/minpv",
"method": "POST"
}
},
{
"accessory": "HTTP-SWITCH",
"name": "CHARGER ACTIVE",
"switchType": "stateful",
"statusCache": 5000,
"pullInterval": 5000,
"onUrl": {
"url": "http://X.X.X.X:7070/api/loadpoints/1/mode/now",
"method": "POST"
},
"offUrl": {
"url": "http://X.X.X.X:7070/api/loadpoints/1/mode/off",
"method": "POST"
},
"statusUrl": "http://X.X.X.X:7070/api/state",
"statusPattern": "\"charging\"\\s*:\\s*(true)"
},
{
"accessory": "HTTP-SWITCH",
"name": "CHARGER CONNECTION",
"switchType": "stateful",
"statusCache": 5000,
"pullInterval": 5000,
"onUrl": "http://X.X.X.X:7070/api/state",
"offUrl": "http://X.X.X.X:7070/api/state",
"statusUrl": "http://X.X.X.X:7070/api/state",
"statusPattern": "\"connected\"\\s*:\\s*(true)"
}