With the launch of iOS & iPadOS 13, iPhone and iPad now have the ability to edit code on CircuitPython USB devices. Users can connect a board such as Circuit Playground Express to their mobile device and edit & run code on the go.
• An iPhone capable of running iOS 13 or iPad capable of running iPadOS. Check your device's compatibility here.
If you're using an iPad Pro equipped with a USB-C port, skip the Lightning Adapter & USB A to Micro-B cable and simply use a USB-C to Micro-B cable: