Espeasy: Hardware serial not working with Senseair S8

[hrikken]

Hardware serial appears not to work at all with the CO2 sensor S8 (Senseair). Only -1 values are being returned. Tested with softserial D6/7 and that works fine so far. Using 20190216 with BME680 plugin added.

[TD-er]

Have you also tried a nightly build? Just to make sure it isn't a build issue. (see other issue where someone has issues building, which is related to the new serial wrapper library I made)

[hrikken]

I use the ESP_Easy_mega-20190216_normal_ESP8266_4096 and added the BME680 (_P119_BME680). You can download the complete source HERE.

[TD-er]

But did you also try to run a pre-built one? Just to make sure there is actually a bug and we're not trying to find a bug which is somehow a build error?

[hrikken]

OK, this is what I've tested:
1 - Flashed a 4mb blank
2 - Flashed the pre-built ESP_Easy_mega-20190216_normal_ESP8266_4096.
3 - Disabled serial comms
4 - Configured Senseair S8 device (double checked for 'Sensor = Carbon Dioxide').
5 - No further setup other than WiFi.
6 - Tests (swapped the RX/TX wires when no data came in):

• Tested HWSerial D9/10 -> no data (always -1)
• Tested HWSerial D7/8 -> no data (always -1)
• Tested SWSerial D5/6 -> Working OK (short test)

[hrikken]

Update: just tested the MH-Z19B: this one seems to be working ok with HWSerial (D9/10)!

[TD-er]

OK, so it seems to be some issue in the plugin itself and not the serial wrapper I made.
Thanks for testing, this will make it easier to find the issue (I hope)

[hrikken]

Tested latest nightly (20190225-normal) and hw serial is working with the S8. Top!!

[TD-er]

Thanks for testing and letting me know.

[hrikken]

That's the least I can do!