ESP8266 - Proof of Concept

[khriss75]

Sounds like the common problem mentioned before.

You either have to manually patch UdpContext.h as I mentioned to FernadoSolanes or now you can use the "staging" version of the ESP8266 lib (until a new release with this bug fixed is released anyway).
https://github.com/esp8266/Arduino/c...dde63b42fa38ed

Boards manager link (2.3.0-rc1): http://arduino.esp8266.com/staging/p...com_index.json

AllanMar,
yes, solved. The problem is related to UdpContext.h

Thanks a lot for your support!
If you will be in Italy a day, I'll offer you a beer (homemade)

[AllanMar]

AllanMar,
yes, solved. The problem is related to UdpContext.h

Thanks a lot for your support!
If you will be in Italy a day, I'll offer you a beer (homemade)

No problem.
haha, perhaps someday. I'm a home brewer as well.

[khriss75]

Pin IN

Only to be clear (for safety), whit arduino, if I select an INPUT pin, the internal pull Up is enabled (the pin is at 5V). To have a "closed" I put the pin to GND.

On nodemcu, setting an input pin, the internal pull up is not activate (the pin remain to 0V.

I'm correct?

Checking with a scope, seems that I'm right, (no pullup enabled on input pin).

[AllanMar]

Only to be clear (for safety), whit arduino, if I select an INPUT pin, the internal pull Up is enabled (the pin is at 5V). To have a "closed" I put the pin to GND.

On nodemcu, setting an input pin, the internal pull up is not activate (the pin remain to 0V.

I'm correct?

Checking with a scope, seems that I'm right, (no pullup enabled on input pin).

Pullup should be enabled, although it will be 3.3V on ESP8266.
What pin are you using? Perhaps it's one that can't support it?

[khriss75]

Pullup should be enabled, although it will be 3.3V on ESP8266.
What pin are you using? Perhaps it's one that can't support it?

I tested GPIO16-5-4.

As specified here: http://blog.falafel.com/programming-...-with-nodemcu/ only GPIO16 shouldn't have internal pullup, but no 3.3V also on other pin (5 and 4).

Can you verify?

OUTPUT pins works fine (3.3V ON, 0V OFF).

This evening I'll retry.

[khriss75]

Checked and re-checked but nothing.

Output works well, example, GPIO2 (D4) works and change from 0 to 3.3V when as output in change the ON/OFF from HS.

Same pin, I set as INPUT, checking with scope there are 0V (no internal pullup enabled). I tried adding an external pullup, ok, now on the scope I have 3.3V, putting the pin to GND, on the scope I read 0V (ok) but the status on HS don't change.

Strange.

Any idea?

[AllanMar]

Checked and re-checked but nothing.

Output works well, example, GPIO2 (D4) works and change from 0 to 3.3V when as output in change the ON/OFF from HS.

Same pin, I set as INPUT, checking with scope there are 0V (no internal pullup enabled). I tried adding an external pullup, ok, now on the scope I have 3.3V, putting the pin to GND, on the scope I read 0V (ok) but the status on HS don't change.

Strange.

Any idea?

I havent had a chance to try anything, and my trial for this plugin is expired but try changing:

      pinMode(Byte4, INPUT);
      digitalWrite(Byte4, HIGH);

To

      pinMode(Byte4, INPUT_PULLUP);

Either is fine on Arduino, but perhaps this is an ESP8266 quirk...

[khriss75]

I havent had a chance to try anything, and my trial for this plugin is expired but try changing:

      pinMode(Byte4, INPUT);
      digitalWrite(Byte4, HIGH);

To

      pinMode(Byte4, INPUT_PULLUP);

Either is fine on Arduino, but perhaps this is an ESP8266 quirk...

Hi Allan,
already tested this last night, before read your message and... you are right!

yes, nodemcu needs

pinmode(pin, INPUT_PULLUP)

in order to enable internal pull up.
Now the pins reacts correctly.

[marekd1]

cant get it connected in HS

Went though the forum and got it working to the point that I can ping it but it will not connect in HS, any ideas what I cancheck why it is not connecting. I've applied all patching as per instructuions and still no go. I have two devices one with DHT22 API code and another one just as Normal both I can ping, no pocket loss but it will not connect. All on the same network/subnet no routing.

Any sugestions what to do next?

Mark

[AllanMar]

Went though the forum and got it working to the point that I can ping it but it will not connect in HS, any ideas what I cancheck why it is not connecting. I've applied all patching as per instructuions and still no go. I have two devices one with DHT22 API code and another one just as Normal both I can ping, no pocket loss but it will not connect. All on the same network/subnet no routing.



Any sugestions what to do next?



Mark

What does the serial console say

[marekd1]

What does the serial console say

The console is blank no errors showing. At this point I've tried so many things I do not know what fixed it. So here is the new update. Got it conencted to HS3, this is good but I am unable to see data from the DHT.

I am using the WeMos DTH22 which is connecting to D4. I've edited the sketch to peg pin4 #define DHTPIN 4. checked the power on the board all looks fine. I can not see the data stream so I am not sure what is actually being sent from the board. I guess I would need to send it to serial first and see if anything is being sent. Is there another way to see it on the HS3 side what is being received?

Mark
BTW thanks for the quick reply.

another update... enabled serial.print and I am getting "nan" as a return after reading both humidity and temp.

any ideas what would be causing that?

[AllanMar]

Post your sketch and i'll have a look.
I don't have the plugin anymore, but it doesnt sound like thats your problem.

[AllanMar]

The console is blank no errors showing. At this point I've tried so many things I do not know what fixed it. So here is the new update. Got it conencted to HS3, this is good but I am unable to see data from the DHT.

I am using the WeMos DTH22 which is connecting to D4. I've edited the sketch to peg pin4 #define DHTPIN 4. checked the power on the board all looks fine. I can not see the data stream so I am not sure what is actually being sent from the board. I guess I would need to send it to serial first and see if anything is being sent. Is there another way to see it on the HS3 side what is being received?

Mark
BTW thanks for the quick reply.

another update... enabled serial.print and I am getting "nan" as a return after reading both humidity and temp.

any ideas what would be causing that?

Actually...
D4 is GPIO2 (confusing I know)

So either:
#define DHTPIN 2
or
#define DHTPIN D4

should work.

[marekd1]

Perfect, thanks you for the info. I will play some more.

Regards
Mark

[marekd1]

Perfect, thanks you for the info. I will play some more.

Regards
Mark

That definitely did the trick. Thank you. One more question: I tried to use Offset to compensate for the error in reading without any results. What is the proper usage for the Offset setting for both positive and negative compensation in the reading?

Thank you
Mark