>On gpio - curious. What applications would you use it for ? Generally they are useful for attaching peripherals like GPS modules, wifi,etc....And I grant there might be some modules that you might need. But isn't the phone solving the 99 percentile use case without need for gpio?
External ports like USB, HDMI,etc are easily done. In fact, there are zillions more accessories for the Android world than the RPI world. And cheaper too. https://youtu.be/n1BBX6hEo8E
> External ports like USB, HDMI,etc are easily done.
I agree that it's easily done, but can you do 2-4 USB ports and HDMI at the same time for a gaming console, or USB + ethernet for a file server? I genuinely don't know, but knowing what I know about iPhone accessories (admittedly also not a ton) I don't think you can. At the very least it adds to the cost and removes some convenience.
Some GPIO sensors I've played with are: IR receiver, RGB LED, waterproof temperature sensors, combination temperature/humidity sensors. You can connect many of these at once, and solder the connections for a more permanent tiny appliance. This link lists lots of interesting/useful sensors and components: https://tutorials-raspberrypi.com/raspberry-pi-sensors-overv...
>On gpio - curious. What applications would you use it for ? Generally they are useful for attaching peripherals like GPS modules, wifi,etc....And I grant there might be some modules that you might need. But isn't the phone solving the 99 percentile use case without need for gpio?
External ports like USB, HDMI,etc are easily done. In fact, there are zillions more accessories for the Android world than the RPI world. And cheaper too. https://youtu.be/n1BBX6hEo8E