accessory:display:vu_series:vu7c

ODROID-Vu7C


The ODROID-Vu7C is dedicated to ODROID-C4 and ODROID-N2(+). It can only be used via a 40pin extension on C4 and N2(+).
It has a 7inch multi-touch screen and getting powered by a 40pin extension directly. so no need for a cable to power, unlike Vu7A+.
Both sides of the PCB be finished VCUT which can cut them easily. So, when viewed from the front, the PCB could be hidden at
the back of the LCD if cut them.
The 7pin header on Vu7C is for I2S, you can enjoy an audio sound via the Boom Bonnet kit.
The 5pin header on Vu7C is for I2C which can use the RTC Shield.

Note that you have to update the uboot and kernel to use this display.
Otherwise, the screen will be just dark black.
The updated uboot has a new function to initialize the HDMI-to-RGB converter IC via I2C interface on the 40pin GPIO.

Our official latest Ubuntu and Android images comes with the new uboot to support the Vu7C display.
C4 Ubuntu : https://wiki.odroid.com/odroid-c4/os_images/ubuntu/mate/20220228
N2 Ubuntu : https://wiki.odroid.com/odroid-n2/os_images/ubuntu/20220228-mate
C4 Android: https://wiki.odroid.com/odroid-c4/os_images/android/pie_64_20220222
N2 Android: https://wiki.odroid.com/odroid-n2/os_images/android/pie_64_20220222

  • 7-inch TFT-LCD
  • 1024(H) x 3(RGB) x 600(V) pixels hardware resolution
  • Screen Dimensions : 164.9(W) x 100.0(H)
  • Viewable screen size : 154.21 x 85.92 mm (active area)
  • 5 finger capacitive touch input
  • 7 Pin Header for I2S
  • 5 Pin Header for I2C
  • Available 40 pin expansion connectors derived from C4 or N2+ (Soldering skill required).
  • Power consumption : 1.75W ± 10% (50% duty cycle) / 3.5W ± 10% (100% duty cycle)
To get long MTBF(Mean Time to Failure) about the backlight of the LCD we recommend that
set to duty cycle 70% under

root@odroid:~# echo 179 > /sys/class/backlight/backlight/brightness



The end of both sides of the PCB is intended to fasten spacers to stand Vu7C up.
Furthermore, they are finished VCUT which can be cut out easily. If you don't need them, you can cut them out.
 1. Grab the end of the PCB using the long-nose tool and bend it up and down.

2. Separated them out.

3|4. View in front of slim Vu7C.


VU7C is designed to directly plug an RTC Shield and a Boom Bonnet Kit using with ODROID-C4.

The above image is an example of the pluggable parts(and modules) to VU7C.


The left image steps on how to combine
Odroid-C4, RTC Shield, and Boom Bonnet Kit.
Please follow the steps.

  1. Connection with ODROID-C4.
    Vu7C J2(40pin header) has to connect to
    C4 J2(40pin header) and Vu7C J1(7pin header)
    has to connect to C4 J7(7pin header) at the same time.
    The header pins are all going to be connected to the
    same pin number between Vu7C and C4.
    (Eg. C4 pin number 1 has to connect Vu7C pin number 1)
  2. View at the top ( with well connected ).
  3. View at the side and top ( with well connected ).

  4. HDMI Coupler connection.
    Tilted and placed it correctly to the right of
    the Vu7C and C4 and push it inside a little.
  5. Inserted front part of the HDMI Coupler.
  6. Push it completely.

  7. Connection with RTC Shield pcf8563.
    Make sure that the connection of the pin names in both
    are the same (eg. pin GND on the Vu7C must be connected
    pin GND on the RTC Shield)

  8. Connection with Boom Bonnet Kit.
    Detach speakers from Boom Bonnet Kit.
    We are going to switch left and right speakers. Because
    the Boom Bonnet Kit will be attached to the
    Vu7C inside out. That means the left speaker will be
    placed on the right side. If you don't want to do that,
    just skip this step and go to step 10.
  9. Switched left and right speakers.
  10. Screwed with nuts (in the red circle).
  11. Connect the wire Boom Bonnet Kit side as see the red
    rectangle. Make sure that both sides of the gray color line
    connect to the OUT silkscreen on the PCB.
  12. Connect the wire Vu7C side as see the red rectangle.

  13. Vu7C can sit with the help of the supports.
When you take the Vu7C to pieces,
please pay attention to the order to detach HDMI Coupler first
and then pull C4 out.


















Vu7C was designed with an emphasis on ODROID-C4. But the 40pin expansion of C4 has the same function as ODROID-N2(+).
Therefore, it's completely compatible with ODROID-N2(+).
But, the board size and also the location of components on the PCB or so… their appearance is totally different.
It could be to look more unattractive than the combination with C4.

The above image shows us all parts(and modules) that can be attached to the Vu7C.


The left image steps on how to combine
Odroid-N2(+), RTC Shield, and Boom Bonnet Kit.
Please follow the steps.

  1. Connect HDMI Cable to Vu7C.
    Before combining with N2(+), HDMI cable connects one side only.

  2. Connection with ODROID-N2(+).
    View at the side and top ( with well connected ).
    Vu7C J2(40pin header) has to connect to N2(+)
    J2(40pin header). The header pins are all be connected
    to the same pin number between Vu7C and N2(+).
    (Eg. N2(+) pin number 1 has to connect Vu7C pin number 1)
  3. View at the top ( with well connected ).

  4. Connection with RTC Shield pcf8563.
    Make sure that the connection of the pin names in both
    are the same (eg. pin GND on the Vu7C must be connected
    pin GND on the RTC Shield)

  5. Connection with Boom Bonnet Kit.
    Detach speakers from Boom Bonnet Kit.
    We are going to switch left and right speakers. Because
    the Boom Bonnet Kit will be attached to the
    Vu7C inside out. That means the left speaker will be
    placed on the right side. If you don't want to do that,
    just skip this step and go to step 7.
  6. Switched left and right speakers. And,
    screwed with nuts (Look in the red circle of number [9]).
  7. Connect the wire Boom Bonnet Kit side as see the red
    rectangle. Make sure that both sides of the gray color line
    connect to the OUT silkscreen on the PCB.
  8. Connect the wire Vu7C side as see the red rectangle.

  9. Back of assembled of Vu7C with RTC Shield,
    Boom Bonnet Kit, and N2(+).


  10. Front of assembled of Vu7C with RTC Shield,
    Boom Bonnet Kit, and N2(+).















With Vu7C, you can enjoy sound with a stereo speaker or an audio earjack.

Please note that the speaker output turns off when an earjack is plugged in.

You must have a hardware connection before setting up this software.
If you only set up the software without hardware assembly, the linux kernel may not boot.

  • ODROID-N2/N2+: 4.9.277-121 or higher.
  • ODROID-C4: 4.9.277-82 or higher.
  • The Linux kernel must support Device Tree overlays. That has been supported since linux 4.9.230-35.

The Vu7c is designed to work with ODROID-C4/N2/N2+ boards.
The software settings of the ODROID-C4/N2/N2+ boards are the same.

In case of Vu7c, display auto detection mode is not supported.
So edit config.ini to set it to menual mode.

; Auto Detection of Monitor settings based on your Screen information
; display_autodetect=true
display_autodetect=false

; HDMI Mode
; Resolution Configuration
; hdmimode=1080p60hz
hdmimode=1024x600p60hz

In the config.ini file, add the overlay profile as follows and reboot.

; Device Tree Overlay
overlay_resize=16384
overlay_profile=vu7c
overlays="i2c0 i2c1"
 
[overlay_vu7c]
overlays="display_vu7c i2c2"

Add display_vu7c dtbo in overlays. Open env.ini and fix like this.

hdmimode="1024x600p60hz"
display_autodetect="false"
overlays="i2c0 i2c1 spi0 pcf8563 pwm_ab pwm_ef display_vu7c"
  • accessory/display/vu_series/vu7c.txt
  • Last modified: 2022/04/26 18:11
  • by neal