LAYOUT DIAGRAM

+---------------+ +-------+-------+ | GND | | ADC | G35 | +---------------+ +-------+-------+ | GND | | ADC | G36 | +---------------+ +-------+-------+ | GND | | RST | EN | +-------+-------+ +-------+-------+ | G23 | MOSI | | DAC | G25 | +-------+-------+ +-------+-------+ | G38 | MISO | | DAC | G26 | +-------+-------+ +-------+-------+ | G18 | SCK | | 3.3V | +-------+-------+ +-------+-------+ | G3 | RXD0 | | TXD0 | G1 | +-------+-------+ +-------+-------+ | G13 | RXD2 | | TXD2 | G14 | +-------+-------+ +-------+-------+ | G21 | iSDA | | iSCL | G22 | +-------+-------+ +-------+-------+ | G32 | pSDA | | pSCL | G33 | +-------+-------+ +-------+-------+ | G27 | GPIO | | GPIO | G19 | +-------+-------+ +-------+-------+ | G2 | I2SOUT| | I2SCK | G0 | +-------+-------+ +-------+-------+ | NC | | PDMDT | G34 | +---------------+ +-------+-------+ | NC | | 5V | +---------------+ +-------+-------+ | NC | | BAT | +---------------+ +-------+-------+