Trouble with RFLink on SYNOLOGY

[EDreamZ]

Hi,

i've just installed RFLink on Arduino MEGA with USB cable, updated succesfully to the R44, connected to my Synology DS214Play with a Capacitor of 10 microFarad between RESET and Ground and finally correctly configured on my Domoticz APP.

i can read 2 Device, 1 Temp Sensor and an OWL CM180

the only strange thing is that RFLink stop to recive data after 5/7 minutes from start and the only thing i can do is to disconnect e reconnect it from the USB, but each time after 5/7 minutes it hangs.

what's wrong ?

Thanks in advance
Giuseppe

[Stuntteam]

Connect RFlink to a PC and run RFlink loader to see if it also stops aftre 7 minutes or not..
Here you can see how to do that:
http://www.nemcon.nl/blog2/development

[EDreamZ]

Good Evening,

Ok...RFLink works good when connectd to the PC.

What's wrong with synology ? Could you please sudgest how to trouble shoot this ?

Thanks in advance...
Giuseppe

[Stuntteam]

Check the USB chip on your Arduino.. is it an Atmega chip or a CH340 chip..?

[EDreamZ]

I bought it from you...it's an original ATMEGA2560.

[Stuntteam]

Thats impossible because I do not sell anything.
You might have bought it from the Nodo shop, they have a CH340 and a non CH340 version.
The CH340 version works directly on the Synology and no capacitor is needed.

[EDreamZ]

sorry...

i know the story of the capacitor...and i put one capacitor of 10 microFarad between reset and GND when the RFLINK is connected to SYNOLOGY...

[Stuntteam]

Well.. if you have an Arduino with CH340 you should not use the capacitor

[EDreamZ]

Again...my RFLINK is equipped with ATMEL serial port...works like a charme connected to a PC without the capacitor...works only for 5/7 minutes connected to a SYNOLOGY DS214Play with the capacitor...

anyone can help ? somebody has experienced my same trouble ?

Thanks in Advance
Giuseppe

[Stuntteam]

Maybe get an Arduino Mega witha CH340 serial controller.. costs around 5 euros..

[EDreamZ]

Increasing or decreasing capacity could change something ?

[Stuntteam]

Check out: http://playground.arduino.cc/Main/Disab ... Connection

[Redferne]

Maybe get an Arduino Mega witha CH340 serial controller.. costs around 5 euros..

Since I'm having a similar problem are you saying the Megas without CH340 are "bad"? Also bought a complete kit from Nodo Webshop.

[Stuntteam]

The version with Ch340 works a bit smoother on a Synology than the version with atmega usb chip.
Alternative option is to get a FTDI usb to serial converter and hook the arduino with that to the Synology USB port (thus not using the USB on board of the Arduino)

[Redferne]

I'm running on a Raspberry PI 3. Would it make any difference? Please define "smoother", we are talking about a 57600 baud serial interface, not 4000000.

[Stuntteam]

This thread is about known issues with Synology and Arduino devices..
Arduino's with an Atmega serial IO chip have this ussue while Arduino's with a CH340 serial IO chip do not.