Miles away...

When my reading in BH1750.h library is at 529 lux
My reading in MySensors is at 34-39 lux

So I'm not sure why.... I'm guessing maybe it's the resolution mode in MySensors?

Here's my serial print. Please disregard the Buf label, its just my sloppy labelling. :)

I noticed that the readings are completely different between MySensors and BH1750 library or perhaps I'm misinterpreting the lux values?

I've used the sample sketch in both in the BH1750 library and MySensors.

Any ideas why?

Thank you!

Have you tried using 10uf? That fixes the problem for me.
You can use between 4.7 upto 47uf. Most people I've read the 10uf fixes it.

As stipulate at mysensors:

Maybe, Mysensors should really highlight that? :)

@gohan

I'm measuring ambient lighting and motion sensor (Its directly using a 12v PIR ) at the moment in my room and using a

Mosquitto+Paho+MongoDB+SlamData for some analytics. I'm curious what analytics I'll get with this setup. Who knows right? :)

Then you'll notice there's an OLED. It's just simply a replacement for the serial() so I can see the debug than plugging the USB all the time.

@sundberg84 @gohan its solved. Thanks for the help! Bad, 4.7uf, poor wiring and not to mention "a man look" on which pins I've used :)

Thanks again!

Found out that my W5100 clone is having serious auto-negotiation issues with my linksys switch. I jumped it earlier like this

@sundberg84

Hmm... no good.. I've basically moved a known working breadboard + 4.7uf from my other prototype below. I'm still getting the same error.

I'll triple check the wiring and replace all of them just in case.

@gohan copy pasted the one from here

https://raw.githubusercontent.com/mysensors/MySensors/master/examples/GatewayW5100/GatewayW5100.ino

thank you

It turns out the W5100 ethernet is working after using the sample sketch from Arduino.
Now plumbed NRF directly on the W5100 shield:

Now I'm getting this:

@sundberg84 it was blank. I'll start with just simply the ethernet shield and use the DhcpChatServer sketch to rule out it's not the shield then move my way to the NRF. Thanks for the rapid response. I'm testing it now.

Unfortunately no, I'll check if its the clone shield is at fault and let you know

@joe.k

That's good to know that it works! are you able to share your sketch to me? Or did you use the same one from the tutorials?

I'm still quite new to this exciting world.

Thank you

I've spent a whole day trying to get this setup working. I'm definitely doing something wrong and I'm lost. I've followed the same pinouts as the Ethernet tutorial but I think since I've got a breadboard, the pin out would be different (I believe).

I've attached the shields I'm using.

Thanks @Nca78 ! That worked!

I managed to get all three of these working:

• NRFL as client
• OLED SPI 128x64
• BM1750

My C programming is a bit rusty I hope someone could help me. I'm planning to use the OLED screen as a "serial console" rather than plugging in a USB all the time. However, when I use the readLightLeve() from BH1750 libraries, on my SPI I'm getting gibberish characters. I suspect because the u8g.print() anticipates a char

Any ideas how do I fix this? Here's the draw() function I used within the loop

void draw(void) {
uint16_t lux;
lux = lightMeter.readLightLevel();
u8g.drawBitmapP( 76, 5, 6, 50, logo);
u8g.setFont(u8g_font_unifont);
u8g.drawStr(0, 30, "Lux: ");
u8g.setPrintPos(44, 30);
u8g.print( lux , 0);
}

Thanks that's exactly what I need! :)

Hi,

I've got two sets of NRF24LOI and Arduino UNO. I'm extremely new with these radios and I've been searching around how to build a very simple client <-> gateway, just want to see this two doing a "ping/pong" via the radios.

I've already gone through the Serial gateway but I'm stuck after that.

Thanks in advance!