ESP always instable

5 years 10 months ago #2510 by cdj
ESP always instable was created by cdj
Hi everybody... after lots of months i don't understand why lots of projects i've developed with EasyIoT is UNSTABLE... everybody has good stable esp8266 with a relay and a 220v charge?
My EasyRelayMod is working in my home... but is always UNSTABLE... tried everything... but after some time i must reset it... Using arduino nano, level shifter, esp-01 or esp-07 or esp-12 (pheraps this is not supported by driver?) ....
I'm at point that i don't really know what i can do, if someone has ideas....

Also my door/window esp8266 is unstable....

All the rest work.....
Thanks
Dario

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5 years 7 months ago #2872 by pickeld
Replied by pickeld on topic ESP always instable
hey, im facing the same issue..
esp8266 hangs and reset after relay changes state.
from what i've read the only way it to replace the relay to solid state relay as the first one make electronic noise which makes the esp lose connectivity.

please share you knowledge if you find anything new.

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5 years 7 months ago #2889 by EasyIoT
Replied by EasyIoT on topic ESP always instable

pickeld wrote: hey, im facing the same issue..
esp8266 hangs and reset after relay changes state.
from what i've read the only way it to replace the relay to solid state relay as the first one make electronic noise which makes the esp lose connectivity.

please share you knowledge if you find anything new.


Add capacitor to ESP8266 power supply or use power supply with bigger current.

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5 years 7 months ago #2890 by pickeld
Replied by pickeld on topic ESP always instable
hey
using a optocoupler i was able to minimize the connection loss...

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5 years 5 months ago #3184 by Szabo
Replied by Szabo on topic ESP always instable
Hello,

I have stable operation. Some rules:
1. place capacitor on ESP supply pins (some uF)
2. do not connect any component to GPIO2 which pulls it down. Like resistor, NPN transistor base. Otherwise it cause boot problems.
3. do not forget suppressor diode on relays coil

Note: relay switch example with ESP8266 in builds, is wrong from point of view rule 2. (NPN transistor is connected to GPIO2)

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