https://docs.khadas.com/ 2026-04-09T17:45:53+00:00 https://docs.khadas.com/ https://docs.khadas.com/ttps://docs.khadas.com/lib/tpl/dokuwiki-new/images/favicon.ico text/html 2023-11-07T04:59:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/1wire?rev=1699351171&do=diff 1-Wire Introduction This page introduces the usage of 1-Wire bus on 40-Pin Header. 1-Wire Information You can find the default PIN used for 1-Wire bus from the table below. PIN GPIO Name DT Overlays Node Device Node VIM1/2 37 text/html 2026-02-23T21:18:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/40pin-header?rev=1771899506&do=diff GPIO Header GPIO usage examples Please make sure that the GPIOs you want to use are not configured as other functions, if they are, you can follow Device Tree Overlay to configure them as normal GPIOs. When you get the GPIO number, you can follow the steps below to control it. Here we take text/html 2022-12-21T21:28:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/adc?rev=1671676086&do=diff text/html 2024-08-06T06:05:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/get-gpio-number?rev=1722938707&do=diff Get GPIO number Calculation: GPIO PIN number calculation method: Number = Range Base + Pin Index * Range Base refers to the base value of GPIO ranges * Pin Index refers to the sorting of the GPIO pins you need to calculate in the corresponding ranges text/html 2023-11-07T04:51:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/i2c?rev=1699350677&do=diff I2C Introduction This page introduces the usage of I2C bus on 40-Pin Header. I2C Information I2C PIN GPIO Name DT Overlays Node Bus Number Device Node VIM1/2 I2C A 22(SCL) GPIODV_25 i2c0 0 text/html 2024-07-10T01:58:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/i2s?rev=1720591111&do=diff I2S Introduction This page introduces the usage of I2S bus on 40-Pin Header. I2S Information PIN GPIO Name GPIO Number VIM3/3L 29 (BCK) PIN.A1 477 31 (DATA) PIN.A3 479 32 (LRCK) PIN.A2 478 28 (GND) GND 1 (VCC) text/html 2022-08-07T22:41:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/irq?rev=1659926475&do=diff GPIO Interrupts Introduction The page leads you to use GPIO interrupts with the GPIO number test program on Khadas SBC. Here we use GPIOH_6 on VIM3 as an example. Hardware Connection Connect the physical pins PIN20 and PIN15 by using a DuPont line. text/html 2023-11-07T03:23:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/led?rev=1699345401&do=diff led linux LED Introduction This page introduces the usage of Onboard LED indicators under Linux, and leads you to control the LEDs. Device LED configurations Device Node name LED color VIM1/2 /sys/class/leds/sys_led text/html 2024-08-22T02:40:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/pwm?rev=1724308818&do=diff PWM Introduction This page introduces the usage of hardware PWM, and leads you to control the hardware PWM on the 40-Pin Header. PWM Reference Table PWM PIN GPIO name DT overlay node Device node VIM1 PWM_AO_A text/html 2024-12-11T03:39:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/spdif?rev=1733906369&do=diff SPDIF Introduction This page introduces the usage of SPDIF bus on 40-Pin Header. SPDIF Information PIN GPIO Name GPIO Number VIM3/3L 13 PIN.AO10 422 VIM4 13 SPDIFOUT 420 VIM1S 13 SPDIFOUT 470 Enable SPDIF text/html 2025-02-17T21:40:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/spi?rev=1739846402&do=diff SPI Reference table SPI Pin Pin name GPIO name DT overlay node Device node VIM3/3L SPI_B 15 SPIB_SS GPIOH_6 spi1 /dev/spidev2.1 16 SPIB_SCLK GPIOH_7 35 SPIB_MISO text/html 2022-06-30T02:50:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/start?rev=1656571817&do=diff GPIO gpio index text/html 2024-08-06T08:27:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/uart?rev=1722947241&do=diff UART Introduction This page introduces the usage of UART on 40pin-Header. UART Information UART PIN GPIO Name DT Overlays Node Device Node VIM1/2 UART_AO_B 15(RX) GPIOAO_5 uart4 /dev/ttyS4 16(TX) text/html 2022-07-04T09:02:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/wiringpi-python?rev=1656939777&do=diff WiringPi-Python WiringPi-Python Function List //GPIO class GPIO(object): def __init__(self,pinmode=0): self.MODE=pinmode if pinmode==self.WPI_MODE_PINS: wiringPiSetup() if pinmode==self.WPI_MODE_GPIO: wiringPiSetupGpio() if pinmode==self.WPI_MODE_GPIO_SYS: wiringPiSetupSys() if pinmode==self.WPI_MODE_PHYS: wiringPiSetupPhys() if pinmode==self.WPI_MODE_PIFACE: wiringPiSetupPiFace() def delay(self,*args): delay(*args) def delayMicrose… text/html 2023-06-25T23:24:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://docs.khadas.com/products/sbc/common/applications/gpio/wiringpi?rev=1687749891&do=diff WiringPi Introduction WiringPi is a C++ library for Raspberry Pi, we port it to Khadas SBC, With this library you can use many of the functionalities provided by the GPIO header: digital pins, SPI, I2C, UART, etc. WiringPi Instructions There are two methods here, via command line or C program.