diff --git a/ports/samd/boards/SEEED_WIO_TERMINAL/pins.csv b/ports/samd/boards/SEEED_WIO_TERMINAL/pins.csv
index 72da71224a..9bc57070d1 100644
--- a/ports/samd/boards/SEEED_WIO_TERMINAL/pins.csv
+++ b/ports/samd/boards/SEEED_WIO_TERMINAL/pins.csv
@@ -22,9 +22,43 @@ PIN_PD20,SWITCH_U
 PIN_PC26,BUTTON_1
 PIN_PC27,BUTTON_2
 PIN_PC28,BUTTON_3
-PIN_PD11,BUZZER_CTR
 PIN_PC14,5V_ENABLE
 PIN_PC15,3V3_ENABLE
+PIN_PB26,TX
+PIN_PB27,RX
+PIN_PA13,SDA0
+PIN_PA12,SCL0
+PIN_PA17,SDA1
+PIN_PA16,SCL1
+PIN_PB02,MOSI
+PIN_PB00,MISO
+PIN_PB03,SCK
+PIN_PB01,CS
+PIN_PB15,GPCLK0
+PIN_PB12,GPCLK1
+PIN_PB13,GPCLK2
+PIN_PC16,SD_MOSI
+PIN_PC18,SD_MISO
+PIN_PC17,SD_SCK
+PIN_PC19,SD_CS
+PIN_PD21,SD_DET
+PIN_PA20,I2S_LRCLK
+PIN_PA21,I2S_SDIN
+PIN_PA22,I2S_SDOUT
+PIN_PB16,I2C_BCLK
+PIN_PB18,LCD_MISO
+PIN_PB19,LCD_MOSI
+PIN_PB20,LCD_SCK
+PIN_PB21,LCD_CS
+PIN_PC05,LCD_BACKLIGHT
+PIN_PC06,LCD_D/C
+PIN_PC07,LCD_RESET
+PIN_PC10,LCD_XL
+PIN_PC11,LCD_YU
+PIN_PC12,LCD_XR
+PIN_PC13,LCD_YD
+PIN_PC30,MIC
+PIN_PD11,BUZZER
 
 LED_PA15,LED_BLUE
 LED_PC05,LED_LCD