How many 12s channels does the U1 have. Can it support 2 I2s microphones?

How would I connect MK1 to the I2S0 bus on U1?

Connect the Thermistor connector to U3.

Connect BATT CONN to U3.

https://www.youtube.com/watch?v=1jUmu3DQEYM

what is the reason for R3 in the U2 reference design?

connect MK2 to I2S1 bus on U1.

Are there any missing peripheral components in U3? Perform a check comparing to ...

What is the quiecent current of this buck boost converter.

based on the datasheet of U3 what peripheral components are needed to have U3 op...

confirm that pins 18 and 19 are USB D+ and USB D- on U1

Perform a design review check of Iset if the max charging current is supposed to...

In U1 list out the GPIOs that can be used for I2S

Perform a design review check on the inductor for U2 if the desired output is 3....

Using SDIO connect the SD card (U4) to U1

what peripheral components are needed to have U2 opperate as a buck boost conver...

I want to configure U2 to output a constant 3.3V. What are the recommended value...

In order for U3 to function what peripheral components am I missing