@mfalkvidd Deleting that folder(and reinstalling everything once again) helped. After succesfull upload i've looked at serial monitor(without connecting nrf), and there was few messages. Next i've connected radio, and it stopped working. Problem was capacitor on radio. Without capacitor everything is working ok. Thank you again.

Thank you for the suggestion. I have changed boards definition by board manager many times, but didn't try just deleting folder. I will try this later today.

@mfalkvidd One more question. Which versions of board manager, MySensors library, and Ardino IDE you suggest? Newest will be best?

I wanted to try wireless gateway with NodeMCU. Unfurtunately i can't compile sketch. I've tried newest version of Arduino IDE, and oldest(1.6.5), tried older ESP8266 board definition (2.4.1), and recent 2.5.0, tried newest version of MySensors, and older(2.0.0). I am getting two types of compilation errors. One is related to not recognizing NodeMCU -

"Board nodemcuv2 (platform esp8266, package esp8266) is unknown

Error compiling for board NodeMCU 1.0 (ESP-12E Module)."

Second error is related to including EEPROM.h in MyHwESP8266.cpp -

"EEPROM.h: No such file or directory ". I don't know what to do. Could you help me somehow?

@Nca78 said:

Anyway if you have requirement for a board that would be both easy to solder and safe even outside of electrical box, can you send them to me by private message ? I'm working on such a board and I'm opened to any improvement ideas of use cases that would not be filled by currently available boards.

I've just thought about little node that could be mounted in almost every room, and be barely visible. This box below ceiling is quite good place for this. I have plan to do something like dome(3d printed) instead of flat box cover to fit electronics there. As i told in previous messages i would like to have node that could turn on/off light, read temperature, movement, and light level by LDR.

@Nca78 said:

Hello, I would not advise to use this board with sensors accessible to fingers. The spacing between main voltage and low voltage traces is too narrow at some points on the board and a short circuit is possible. It is fine/safe to use only in a closed box or connected to wall switches as they are designed to be safe with main voltage.

I think that woundn't be so risky becouse o think about mounting it not behind light buttons, but in this box just below ceiling(where wires crossing their paths), this box is placed more than 2 meters above floor level.

Very nice project. I would like to have access to few more pins to add some functionality like motion sensor, and light sensor. Of course those would be outside of the wall :)

@mainali Ok, i understand now that you have to use old switch as well. I have replaced my old switch(it was turning light by closing circuit) with button(momentum) switch. Of course i needed to change a lot of things(adding powersource for arduino, and relay, connecting switch with arduino etc).

@mainali I've changed my two way switch to one way. So i can control my light with phisical button, and also by app.

@Ivan-Z Really nice idea for battery powered nodes:)

Your device is powered by 5V, or maybe 230V?

Graphs in Domoticz looks very nice. They are using HighCharts for graphs.

@slarti said:

What is the best way to disable the power LED? Desolder it?

You can cut the pcb trace leading to this led.

I have a question. If someone is using pulse power meter with new version of Domoticz please tell me if Domoticz is able to send last know value of kwh to node?

@Hausner Have you considered sensor failure?

If i think correct some relays are activated by high state, but some by low state. If i'm wrong, please correct me.

@ferpando Your's PCB looks more pro than mine:) But designing pcb for home etching is little harder becouse there is no easy way to make double sided soldering points, so every soldering point must be at one side of pcb.

@marceltrapman said:

I noticed that you do top and bottom layer also on connectors.
How do you solder that?

I have read a lot about creating your own pcb's and all seem to suggest to use via's...

I am using VIA too. Only this board for 5110 display have soldering points on both sides becouse display is connected on the one side, rest on the other. Normally all soldering points have to be on one side.

Are you using serial gateway sketch, and example sketch in the same version?

My new pcb's. Smallest for room light, to fit behind wall switch. Second(left) is for kitchen - 3 ds18b20(kitchen temp, fridge temp, and freezer temp), motion sensor, 1602 display, and 2 contact switches for fridge door. Last is for nokia 5110 display, and motion sensor. I can display anything i want on this node.

@naveen It's 3 weeks from first order? Usually they have max delivery time about 45 days. My FTDI USB to TTL from store arrived in 45 day from order(max delivery time).