[DISC] auto-discovery strcmp instead of substring only strstr

[DigiH]

To avoid auto-discovery issues due to substring comparison at
https://github.com/1technophile/OpenMQTTGateway/blob/development/main/ZgatewayRTL_433.ino#L128

strcmp instead of substring only strstr

Checklist:

• The pull request is done against the latest development branch
• Only one feature/fix was added per PR and the code change compiles without warnings
• I accept the DCO.

[DigiH]

@riegelbrau

Could you check if this change from strstr to strcmp makes any difference to your TPMS Jansite-Solar fix at all.

It shouldn't really, but best to double check.

[riegelbrau]

I copied the changed code into my platformio workspace with the actual development branch, compiled and tested the creation of my TPMS sensor. It's still working as expected!

{
	"stat_t": "+/+/RTL_433toMQTT/TPMS/Jansite-Solar/5e512a",
	"dev_cla": "temperature",
	"unit_of_meas": "°C",
	"name": "Temperature",
	"uniq_id": "TPMS-Jansite-Solar-5e512a-temperature_C",
	"val_tpl": "{{ value_json.temperature_C }}",
	"state_class": "measurement",
	"device": {
		"ids": [
			"TPMS-Jansite-Solar-5e512a"
		],
		"cns": [
			[
				"mac",
				"TPMS-Jansite-Solar-5e512a"
			]
		],
		"mdl": "Jansite-Solar",
		"name": "TPMS-Jansite-Solar-5e512a",
		"via_device": "OMG_lilygo_rtl_433_ESP_OOK_CBTEST"
	}
}

[DigiH]

Thanks for the testing and confirmation @riegelbrau

[1technophile]

Thanks