Arduino UNO EG020BS011 EPD Extension Board Gen2

[macvenez]

Hi.
Today I tried this display connected to EPD Extension Board Gen2 and my Arduino UNO.
I followed this guide and switched the DIP switch for the 2.0" eTC display so 0000001.
I loaded the demo.ino sketch and set the screen size and type (EPD_V230_G2, SCREEN_SIZE 200).
I uploaded the sketch without any errors to my UNO.
I opened the Serial Monitor and the program was running but on the EPD display nothing happened (always white, like it was when I put it out of the box).
Sometimes I read "EPD: DC failed" or "EPD: ok" but nothing happens to the display.
Furthermore as temperature value I get strange values: "Temperature = -537 Celsius".
I think my wiring is ok as I get "EPD FLASH chip detected OK" in the serial monitor but I'm not sure about it so if someone could give me instructions about the wiring for Arduino UNO I would be happy.
I don't know where could be the problem, I attach a screenshot of my serial monitor.
Thank you very much.

Hello Macvenez,
You are going to have a level shifter to bridge the control interface between Arduino UNO and EXT2 board.
Our EXT2 board is not available for 5V system. You have to add 6 control signals for 3V below,

• SCL_PIN //EXT2 BOARD J5 pin 7
• SDA_PIN //EXT2 BOARD J5 pin 15
• CS_PIN //EXT2 BOARD J5 pin 19
• DC_PIN //EXT2 BOARD J5 pin 9
• RESET_PIN //EXT2 BOARD J5 pin 10
• BUSY_PIN //EXT2 BOARD J5 pin 8
  Don't forget to pull high Panel ON(J5 pin 11). This pin can operate at 5V

[macvenez]

Thank you for the answer. I'll try it as soon as possible. In the meantime I tried the board with raspberry and it worked perfectly immediately. I discovered there's no reference for the commands available for pi... any solution? Thank you very much Il 11/Lug/2017 06:54, "Hardy-PDi" <notifications@github.com> ha scritto:

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Hello Macvenez, You are going to have a level shifter to bridge the control interface between Arduino UNO and EXT2 board. Our EXT2 board is not available for 5V system. You have to add 6 control signals for 3V below, - SCL_PIN //EXT2 BOARD J5 pin 7 - SDA_PIN //EXT2 BOARD J5 pin 15 - CS_PIN //EXT2 BOARD J5 pin 19 - DC_PIN //EXT2 BOARD J5 pin 9 - RESET_PIN //EXT2 BOARD J5 pin 10 - BUSY_PIN //EXT2 BOARD J5 pin 8 Don't forget to pull high Panel ON(J5 pin 11). This pin can operate at 5V — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#72 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AYbawuv522TOpgwYbcNDkBfTZsu3BVs8ks5sMv_rgaJpZM4OOl0-> .