• Hardware

  • Bela Mini GPIO pin current draw?

Hello, I am looking to do a simple LED off one of the GPIO pins of the Bela Mini, but I was wondering if anyone knows what the per pin current limit is?

ChatGPT says: "For the AM335x (and thereby the PocketBeagle), each GPIO pin can typically source or sink up to 4 mA (milliamps) of current in its default configuration." Thoughts?

    The datasheet states 6 mA as the maximum current that can be sunk or sourced while keeping the voltage 0V or 3.3V, respectively for most pins ("all other LCVMOS pins" in section 5.7 "DC electrical characteristics). However, a small subset of GPIO pins have a 4 mA limit, namely:

    ECAP0_IN_PWM0_OUT,UART0_CTSn,UART0_RTSn,UART0_RXD,UART0_TXD,UART1_CTSn,UART1_RTSn,UART1_RXD,UART1_TXD,I2C0_SDA,I2C0_SCL,XDMA_EVENT_INTR0,XDMA_EVENT_INTR1,WARMRSTn,EXTINTn,TMS,TDO,USB0_DRVVBUS,USB1_DRVVBUS

    djzielin ChatGPT says [...] each GPIO pin can typically source or sink up to 4 mA (milliamps)

    That sounds like something that someone who doesn't want to be too wrong would say.