You can use the same USB-C adapter with Mac and iPad. These are the same connectors that connect a macOS laptop with a USB-C connection to a projector.
On an iPad Pro released in late 2018 or later with a standard USB-C port, use either a USB-C to HDMI adapter or a USB-C to VGA adapter depending on the display device. Shielding :Aluminum Foil Shield Resolution :1080P(MAX) HDMI Vertiong : HDMI 1.4 Cable Length :23CM Color :Black/White Packing :Polybag Package :Yes Features: Support.
Model Number :D19017M Gender :Male-Female Typer :Mini DP To HDMI Adapter Connector A :Mini DP/Thunderbolt Connector B :HDMI Application :For Apple MacBook Air/MacBook Pro/Mac Mini/iMac/Microsoft Surface Pro/Lenovo ThinkPad etc. Connect a display, TV, or projector that has an HDMI connector: Plug the cable directly into the HDMI port on your Mac. For older displays, use a USB-C Digital AV Multiport Adapter or a USB-C VGA Multiport Adapter to connect the display to the USB-C port on your Mac.