We've discovered that there's a problem driving our LEDs via PWM - the library we're using doesn't let us use GPIO16 as a PWM pin. We think the best way to solve this would be to rewire the pins around a bit.
INPUT / OUTPUT LABEL | OLD GPIO | NEW GPIO |
HTU_SDA | GPIO5 | GPIO0 |
LED_B_CTRL | GPIO16 | GPIO5 |
HTU_SCL | GPIO4 | GPIO2 |
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