Extrait du wiki Waveshare :
Note: If you are using recalbox 7.0.1-Reloaded version image, the configuration code of config.txt needs to be as follows, add the following code at the end of config.txt, save and eject the TF card safely.
hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 800 600 60 6 0 0 0
hdmi_drive=2
display_rotate=0
avoid_warnings=1
Note: If you are using the recalbox 7.0.1-Reloaded version image, you need to enter the following commands in the terminal to configure the gamepad
mount -o remount,rw /
mount -o remount,rw /boot
Edit the recalbox.conf file
nano /recalbox/share/system/recalbox.conf
Modify the line controllers.gpio.enabled=0 in the file to
controllers.gpio.enabled=1
After modification, save the file and exit the editing. After entering reboot to restart the system, you can use the buttons normally.