Quad-copter Project – Motor Wiring and Pi connections

Wiring ESC units to allow for PWM control and then writing software to control the motors is not as easy as it sounds.

Rapserry Pi B/B+ GPIO hardware interface.

Power 3v3  1  2 5v Power
SDA1_I2C GPIO2 3 4 5v Power
SCL1_I2C GPIO3 5 6 Ground
GPIO4 7 8 GPIO14 UART0_TXD
Ground 9 10 GPIO15 UART0_RXD
Motor 1 Signal GPIO17 11 12 GPIO18 PCM_CLK Motor 3 Signal
GPIO27 13 14 Ground
Motor 2 Signal GPIO22 15 16 GPIO23 Motor 4 Signal
Power 3v3 17 18 GPIO24
SPI0_MOSI GPIO10 19 20 Ground
SPI0_MISO GPIO9 21 22 GPIO25
SPI0_SCLK GPIO11 23 24 GPIO8 SPI0_CE0_N
Ground 25 26 GPIO7 SPI0_CE1_N
I2C_ID_EEPROM ID_SD 27 28 ID_SC I2C_ID_EEPROM
GPIO5 29 30 Ground
GPIO6 31 32 GPIO12
GPIO13 33 34 Ground
GPIO19 35 36 GPIO16
GPIO26 37 38 GPIO20
Ground 39 40 GPIO21

 

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