8 buttons and 8 relays in esp with hc595

elmaya
Posts: 961
Joined: Wed Jun 27, 2018 5:48 pm
Location: Sevilla

Fri Nov 15, 2019 9:30 am

piotrekk wrote:
Fri Nov 15, 2019 6:43 am
dalej nie rozłącza AP. Możesz udostępnić mi twoje biblioteki ?
Of course.
I attach the latest version of 8x8_595_ntc and the libraries.
supla_595_reset_to_Config8x8_10K-ntc.rar
arduino & libraries
(1.63 MiB) Downloaded 164 times
Michal81
Posts: 55
Joined: Sun Feb 02, 2020 9:03 pm

Thu Feb 06, 2020 8:17 pm

Jakie zastanawiałeś rezystory w układzie x8 ?
piotrekk
Posts: 42
Joined: Thu Sep 19, 2019 7:12 am

Thu Feb 06, 2020 8:34 pm

podciągające na przyciski? od 4,7k do 10k
Remi
Posts: 74
Joined: Tue May 22, 2018 4:03 pm

Mon Sep 14, 2020 8:55 am

Hi elmaya
I make work this software and got following behaviour: when power on D1 mini - relay is getting high signal. Is this as designed? Is there option to make a bin file with default low signal send to relay after powering on?
PS I did not install buttons as i dont need them but I suppose this should not have any influence.
elmaya
Posts: 961
Joined: Wed Jun 27, 2018 5:48 pm
Location: Sevilla

Mon Sep 14, 2020 9:39 am

you have to use high-level trigger relays.
What kind of relay do you have?
Remi
Posts: 74
Joined: Tue May 22, 2018 4:03 pm

Mon Sep 14, 2020 11:37 am

I use these ones:

Image

I performed more tests and it looks old position of relay is remembered but... anyway relay is supplied for approx 2 seconds after powering up and then it goes to previous state.
Also there is inversion when comparing app and phisical relay - is there option that i connected incorrectly hc595?
elmaya
Posts: 961
Joined: Wed Jun 27, 2018 5:48 pm
Location: Sevilla

Mon Sep 14, 2020 11:58 am

that type of relay does not work well when controlled with 3.3v and is active at low level

you will have to use something else.
Remi
Posts: 74
Joined: Tue May 22, 2018 4:03 pm

Mon Sep 14, 2020 12:41 pm

The easiest and fastest way will be to use other relays. Wemos relay shield works well base on my performed tests so far. Thx for help ;)
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