+# Pinout reference:
+# https://wiki.banana-pi.org/Banana_Pi_BPI-M5#BPI-M5_40PIN_GPIO_.28CON2.29
+P3 = pin.GPIOX_17 # I2C_M2_SDA
+P5 = pin.GPIOX_18 # I2C_M2_SCL
+P7 = pin.GPIOX_5 # Verified
+P8 = pin.GPIOX_12 # UART_A_TX
+P10 = pin.GPIOX_13 # UART_A_RX
+P11 = pin.GPIOX_3 # Verified
+P12 = pin.GPIOA_8 # TDMB_SCLK
+P13 = pin.GPIOX_4 # Verified
+P15 = pin.GPIOX_7 # Verified
+P16 = pin.GPIOX_0 # Verified
+P18 = pin.GPIOX_1 # Verified
+P19 = pin.GPIOX_8 # PCM_DIN
+P21 = pin.GPIOX_9 # PCM_DOUT
+P22 = pin.GPIOX_2 # SDIO_D2
+P23 = pin.GPIOX_11 # PCM_CLK
+P24 = pin.GPIOX_10 # PCM_SYNC
+P26 = pin.GPIOX_16 # Verified
+P27 = pin.GPIOA_14 # Verified
+P28 = pin.GPIOA_15 # Verified
+P29 = pin.GPIOX_14 # Verified
+P31 = pin.GPIOX_15 # Verified
+P32 = pin.GPIOX_19 # Verified
+P33 = pin.GPIOX_6 # Verified
+P35 = pin.GPIOAO_7 # Verified
+P36 = pin.GPIOH_5 # Verified
+P37 = pin.GPIOAO_7 # I2S_MCLK
+P38 = pin.GPIOAO_10 # TDMB_DIN SPDIF_OUT
+P40 = pin.GPIOAO_4 # TDMB_DOUT