Supla 16 X relay -- esp8266 + mcp23017

[elmaya]

In your project you used 4 modules with 4 relays.
I know that in cloud I can run 2,4,8,16 channels.
I asked if I would physically connect 2 modules with 4 relays then this construction would still work.

Of course yes

[bulek68]

interesting,I did everything you posted, and it works the first time, can you add buttons at least 8 to activate relays (not touch buttons thisway allow me to use rf receiver to swith relays) and ds18b20 sensor to this projects? thanks a lot

The GPIO have not been used yet.
I think that many people will be missing up to 8xDS and DHT22 / BME280.

Is this possible? Is it just a matter of time

[elmaya]

who knows?
maybe one day you wake up in the morning and Esp8266 takes you coffee to bed.

maybe i add 1 ds18b20

[bulek68]

who knows?
maybe one day you wake up in the morning and Esp8266 takes you coffee to bed.

maybe i add 1 ds18b20

Looking at what you can force these ESP devices to do, I would not be surprised that one day it will happen.

[elmaya]

changed in third SensorNO D7 for Ds18B20 in D7

Supla_16x16_2NO_DS_DOUT_16Mbit.rar

[bulek68]

Me again.
Could you suggest how to secure sensor inputs for long cables (about 30m).

EDIT:

Maybe this- EVERLIGHT EL817 will be ok?

[elmaya]

Me again.
Could you suggest how to secure sensor inputs for long cables (about 30m).

EDIT:

Maybe this- EVERLIGHT EL817 will be ok?

maybe this https://es.aliexpress.com/item/33017803 ... lsrc=aw.ds in 24v out 3,3v

or you can use DirectLink.

[bulek68]

I noticed a certain pattern.
When the relays are turned on and the module loses power and returns again then the relays are turned off and the application indicates their switching on.

[elmaya]

I noticed a certain pattern.
When the relays are turned on and the module loses power and returns again then the relays are turned off and the application indicates their switching on.

try with this

Supla_16x12_2NO_DS_b_DOUT_16Mbit.rar

[Maniek913]

I have a similar problem in the software for 8 blinds.