Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

[Bee]

Is it possible for nRF52832 to drive an SPI TFT 240x240 LCD and a TWI Capacitive Touch Panel with BLE and NFC? Is 64Mhz the highest speed? What I mean is that is it possible to use nRF52832 to make a smart watch with capacitive touch screen?

[RK]

64MHz is the only speed for the system clock. What you can do all depends on the capabilities of the display. If it's an advanced one you send drawing commands to which has onboard RAM, that might work, if you have to memory map it and refresh it that's 240x240 x bytes per pixel, if it's 8-bit per channel RGB that's 240x240x3 = 172k which is 3x the RAM on the nrf52 and you have no hope at all.

Either way - if you are running BLE and other stuff and trying to refresh a huge display then you'll have nothing left for actual watch functions. I'd use a powerful chip to run the watch and display and use the nRF52 just for the communications stack.

[Bee]

Thank you for your intensive answer. I will think of your advise.