I'm building a Pi4B music server using the Pi 7" screen, with a PiSugar3 UPS on the bottom of the stack. The screen is powered from GPIO pins 2 and 6, but from the I've read from the HiFiBerry spec sheet that "GPIOs 5 and 6 are used for the clock circuit and cannot be used for anything else". Am I going to run into trouble sharing pin 6 for the screen, or should I use another ground pin.
Also, next to the GPIO there's a 5v power supply connector - is this power in or power out?
You can share GND.
There is no "power in" or "power out". It simply connects to 5V, in what direction the current flows depends on what you connect.
Thanks - very clear.
No "power in" or "power out" exists. It only requires a 5V connection, and depending on what you connect, the current will flow in either direction. geometry dash
To avoid potential problems, it's generally recommended to use a different ground pin for powering the screen instead of pin 6. There are multiple ground pins available on the Raspberry Pi, and using any other ground pin should work fine and not interfere with the clock circuit. Candy Crush
Using GPIO pins 2 and 6 for both the Pi 7" screen and HiFiBerry may cause interference due to clock circuit use. Consider using a different sex dolls cheap ground pin for the screen to avoid issues. The 5V power supply connector is likely for power input.
Using pin 6 for ground on the Raspberry Pi 4B, which you intend to share between your screen and the HiFiBerry DIGI2 PRO, might cause issues since the HiFiBerry spec sheet indicates that GPIOs 5 and 6 are used for the clock circuit. To avoid potential problems, it is recommended to use another ground pin from the GPIO header. Alternative ground pins you can use include pin 9, pin 14, pin 20, pin 25, pin 30, pin 34, and pin 39. Additionally, the 5V power supply connector next to the GPIO header on the Raspberry Pi is for power input, allowing you to supply power to the Raspberry Pi through this connector instead of using the standard micro USB or USB-C ports. To ensure smooth operation, use an alternative ground pin for your screen and make sure the power supply via the 5V connector is secure and within the specified range to avoid any damage to the Raspberry Pi. If you have any further questions or need additional details, feel free to ask ngobrol games