Renits A5

Renits is an HDMI screen with touch capabilities. It has

• 5" diagonal size
• 1080x1920 pixels
• Very bright at 1000 nits/m²
• 5 point capacitive touch capabilities
• Voltage and current measurement
• USB C for power and touch
• HDMI connector for picture
• Buttons for adjusting brightness
• Command line interface for adjusting brightness
• Firmware upgradable in place via USB

Adjusting brightness

The brightness can be adjusted by pressing the "+" and "-" keys on the back of the board. Alternatively, the brightness can be set via the commandline. To set the brightness to full:

brightness 100

Firmware upgrade

In order to perform a firmware upgrade, the screen must first enter bootsel mode. This can be done by holding in both buttons on the back of the board when applying power. Alternatively, the bootloader can be entered via the command line for the screen.

minicom -o -D /dev/ttyACM0

Once communication with the screen has been established, the bootloader can be started with the command

bootsel

When the board is in bootsel mode, it will accept new firmware by dragging and dropping the firmware on to the mounted drive. The firmware is signed and encrypted, so only official UF2 files will work.