DAISY-1 pinout

D1 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D1.1 3.3V Power line 3.3 Volt
D1.2 PB6 TXD1 GPIO 70 38 Serial line /dev/ttyS2 TXD
D1.3 PB7 RXD1 GPIO 71 39 Serial line /dev/ttyS2 RXD
D1.4 PB28 RTS1 GPIO 92 60 Serial line /dev/ttyS2 RTS
D1.5 PB29 CTS1 GPIO 93 61 Serial line /dev/ttyS2 CTS
D1.6
D1.7 PA23 SCD GPIO 54 22 I2C Bus Data
D1.8 PA24 SCL GPIO 55 23 I2C Bus Clock
D1.9 5V Power line 5 Volt
D1.10 GND Power line GND

D2 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D2.1 3.3V Power line 3.3 Volt
D2.2 PA31 GPIO 63 31 General purpose IO
D2.3 PA30 GPIO 62 30 General purpose IO
D2.4 PA29 GPIO 61 29 General purpose IO
D2.5 PA28 GPIO 60 28 General purpose IO
D2.6 PA27 GPIO 59 27 General purpose IO
D2.7 PA26 GPIO 58 26 General purpose IO
D2.8 PA25 GPIO 57 25 General purpose IO
D2.9 PB30 GPIO 94 62 General purpose IO
D2.10 GND Power line GND

D3 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D3.1 3.3V Power line 3.3 Volt
D3.2 PB4 TXD0 GPIO 68 36 Serial line /dev/ttyS1 TXD
D3.3 PB5 RXD0 GPIO 69 37 Serial line /dev/ttyS1 RXD
D3.4 PB26 RTS0 GPIO 90 58 Serial line /dev/ttyS1 RTS
D3.5 PB27 CTS0 GPIO 91 59 Serial line /dev/ttyS1 CTS
D3.6 PB22 GPIO 86 54 General purpose IO
D3.7 PB24 GPIO 88 56 General purpose IO
D3.8 PB25 GPIO 89 57 General purpose IO
D3.9 PB23 GPIO 87 55 General purpose IO
D2.10 GND Power line GND

D4 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D4.1 3.3V Power line 3.3 Volt
D4.2 AVDD Clean 3.3V out for A/D circuitry
D4.3 VREF A/D voltage reference input
D4.4 AGND Analog ground
D4.5 PC0 AD0 GPIO 96 64 Analog input 0
D4.6 PC1 AD1 GPIO 97 65 Analog input 1
D4.7 PC2 AD2 GPIO 98 66 Analog input 2
D4.8 PC3 AD3 NPCS3 99 67 Analog input 3 or SPI bus chip select 3
D4.9 5V Power line 5 Volt
D4.10 GND Power line GND

D5 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D5.1 3.3V Power line 3.3 Volt
D5.2 PB12 GPIO 76 44 General purpose IO
D5.3 PB13 GPIO 77 45 General purpose IO
D5.4 PB16 GPIO 80 48 General purpose IO
D5.5 PB17 GPIO 81 49 General purpose IO
D5.6 PB18 GPIO 82 50 General purpose IO
D5.7 PB19 GPIO 83 51 General purpose IO
D5.8 PB20 GPIO 84 52 General purpose IO
D5.9 PB21 GPIO 85 53 General purpose IO
D5.10 GND Power line GND

D6 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D6.1 3.3V Power line 3.3 Volt
D6.2 PB10 TXD3 GPIO 74 42 Serial line /dev/ttyS4 TXD
D6.3 PB11 RXD3 GPIO 75 43 Serial line /dev/ttyS4 RXD
D6.4 RTS3 GPIO Serial line /dev/ttyS4 RTS
D6.5 CTS3 GPIO Serial line /dev/ttyS4 CTS
D6.6 PB31 GPIO 95 63 General purpose IO
D6.7 PA23 SCD GPIO 55 23 I2C Bus Data
D6.8 PA24 SCL GPIO 56 24 I2C Bus Clock
D6.9 5V Power line 5 Volt
D6.10 GND Power line GND

D7 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D7.1 3.3V Power line 3.3 Volt
D7.2 PB1 MOSI GPIO 69 37 SPI bus master output/slave input
D7.3 PB0 MISO GPIO 68 36 SPI bus master input/slave output
D7.4 PB2 CK GPIO 66 34 SPI bus clock
D7.5 PB3 NPCS0 GPIO 67 35 SPI bus chip select 0
D7.6 NPCS1 GPIO SPI bus chip select 1
D7.7 NPCS2 GPIO SPI bus chip select 2
D7.8 NPCS3 GPIO SPI bus chip select 3
D7.9 5V Power line 5 Volt
D7.10 GND Power line GND

D8 connector

Pin # IC Pin Default Alt ID 2.6x ID 3.1x Note
D8.1 3.3V Power line 3.3 Volt
D8.2 PB8 TXD2 GPIO 74 42 Serial line /dev/ttyS3 TXD
D8.3 PB9 RXD2 GPIO 73 41 Serial line /dev/ttyS3 RXD
D8.4 N.C.
D8.5 N.C.
D8.6 N.C.
D6.7 PA23 SCD GPIO 55 23 I2C Bus Data
D6.8 PA24 SCL GPIO 56 24 I2C Bus Clock
D8.9 5V Power line 5 Volt
D8.10 GND Power line GND