Dragino Yun Shield v2.3 - UART problem

Hardware Arduino Yún Yún Shield
1

Hello,

I will be very apriciate if someone could help me... and i'm sorry for my english...

I think i can damaged my yun shield and i dont know how to check it...
sudenly my aplication stop working and i havent serial communication betwin MCU and linux parts.
I reset to factor sets of yun shield, upgrade to Dragino-v2 common-2.0.7, I can connect to yun via winSCP /ssh - putty.

I can't upload any sketch via "cgi-bin" site:

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

or arduino IDE

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.


avrdude done.  Thank you.

i tried upload sketch "readConsole" trew usb but i dont see any incoming data in linux...

i can "reset_mcu" in linux script but this is all i can doo...

I was checking all of this in 3 difrent leaonardo boards with the same result

Is there is any difrent way to diagnostic Yun shield UART/SPI???

anybody see schematic of this dragino yun shield v2.3 ?

2

This forum section is for the Arduino Yun Shield. You have the Dragino Yun Shield which is a competing product from another company. They are not the same, as there are some potentially important differences between the two.

Your best bet is to turn to Dragino for help. If you go to their wiki you will find a lot of support information. If you go to their product page, and select the Documents tab, there is a link for Hardware Source, where you will find the schematics.

Sorry, but I can't give any other advice - I have no experience with the Yun Shield: from Arduino, Dragino, or otherwise.