Gpio beaglebonetrabajos

Necesito el diseño (esquemático y PCB) de un sistema embebido que cuente con: Microcontrolador ARM Cortex M7, programador embebido, módulo de alimentación, módulo de Ethernet y al menos 5 GPIO disponibles.

...panel to stable 5 volts, this supplies the wifi modem and other route goes to a LDO-3.3V. I don't want to use the module () anymore and embed it to the PCB as a fixed-5V circuit. So i Ask for: 1. Add a transistor circuit to supply 5V to the modem (from the lm2596 regulator) when the ESP32's GPIO commands. Add it to the current version of the schematic and PCB board layout. 2. Do the fixed-5V circuit, according to LM2596 datasheet, in the current schematic and PCB layout. Find the main components (1. transistor; 2. coil, diode, chip regulator) in LCSSC Electronics () so the footprints of the PCB match the solder pins of the packages. Add it to the current version of the PCB board

Crear el schematic y PCB para un dispositivo compuesto por ESP32 y MC60 de Quectel. Hay 3 entradas: 1 análogo, 1 GPIO, 1 I2C. Batería externa de 3.6V PCB de una sola capa. La dimensión y formato de la placa ya la tengo definida. Software: KICAD. El entregable es el proyecto completo, incluyendo el BOM de Mouser. Los demás detalles se proporcionarán una vez comenzado el proyecto.

Menejo de tkinter, time y gpio, realizar varias ventanas con control de botones, barras de progreso y control de puestos de salida (bombas) y entrada (sensores). contador de servicios, registro de formulas

Necesito el diseño para 2 placas para montar componentes ioT: PLACA 1 Nodemcu Wifi Esp12 Esp 12 Lua Gpio Cp2102 (Para montar) Display Tft Arduino St7789 (board 1) (Para montar) sensor aht10 temp (Para montar) DS3231 rtc clock (Para montar) PLACA 2: Display Tft Arduino St7735 (board 2) (Para montar) Nodemcu Wifi Esp12 Esp 12 Lua Gpio Cp2102 (Para montar) 4 relays (embebido) --> con componentes soldados desde ya muchas gracias

We have a working device gathering distance from a laser sensor and sending data through MQTT and an API. What we have already available, you do not need to worry about: +Code written under the Arduino IDE. +The device has the following hardware bill of materials: -Custom PCB -ESP-12E/F -Sensor VL53L0X I2C -LED Green Color connected to GPIO 14 -Push Button connected to GPIO 0 *It is used to get Arduino into programming mode if pressed when device is starting *It is used as general purpose push button after Arduino has been initialized +The device has the following software bill of materials in the form of libraries: -WiFi Manager -Adafruit VL53L0X -FireBase ESP8266 -PubSub Client +A Gitlab repository wh...

Necesitamos una compilación Yocto para una placa de embebidos del estilo BeagleBone y/o Raspberry. Sobre todo, es importante configurar bien el RTC. Se trabajaría en Linux, y dicha compilación estaría adaptada a nuestras necesidades hardware. Dicha compilación serviría para cargar nuestro propio software ya desarrollado.

...- Montar en 1 arduino la comunicación WIEGAND para lector de tarjetas de control de acceso. - La Lectura y escritura wiegand en 34bit. - Con un shield con pto USB para leer un lector codigo de barra y limpiar la data y convertir en wiegand y escribir en los GPIO del arduino. - Intercambio de datos binarios y analogicos. - Capacidad de forzar datos por terminal serial del IDE, como también por GPIO's para los arduinos. - Pin de reset de comunicación 2.4GHz para ambos arduinos. RESUMEN - Leer wiegand por GPIO - Escribir wiegand por GPIO - Input / Output (para botones y reles) - Pin led status comunicación y arduino (run/wiegand/falla/etc.) - Pin reset MCU / RF 2.4GHz - Shield Pto USB,para Lector Codigo de Barra - Escribir wiegand con...

Me gustaría desarrollar un dispositivo con un microcontrolador barato y pequeño y comunicarlo con un microcontrolador ATMEGA256RFR2, a través del protocolo I2C. El microcontrolador barato debe conectarse con 2 sensores I2C y tener salida de GPIO. Se requiere de diseño (esquema) y programación (código master+slave).

...por UART datos desde arduino, ejecute un archivo PHP con el string recibido - Poder enviar datos Online con php (por ejemplo, con curl) de manera transparente - Script o instrucciones para conectar Raspberry a wifi (ssid, pass) mediante wifi o bluetooth Arduino (esp32) estará conectado obligatorio a Raspberry por su puerto microusb, en el lado de Raspberry puede ser conectado donde se quiera (gpio, usb, otros) El codigo de Arduino es tarea mía...

El trabajo se trata de portar una aplicación hecha para un microcontrolador STM32 de ST, a un microcontrolador NXP RT1020. Ambos son ARM, el proyecto portado debe de realizarse con MCUXpresso. Básicamente la portabilidad se centra en la nueva configuración del hardware, USB, tarjetero micro SD, puertos GPIO, interrupciones, SPI de entrada por DMA, salida a varios puertos usando DMA y un timer con interrupciones. La aplicación de origen se hizo usando el IDE Coocox, para placas Discovery basadas en un microcontrolador STM32F407. Aunque el aplicativo original usa tarjetero micro SD por SPI, en la nueva aplicación sobre RT1020, este debe de usar SDIO 4bit paralelo, para una mayor velocidad de acceso. Este proyecto es bastante más sencillo,...

El trabajo de trata de portar una aplicacion hecha para un microcontrolador NXP Kinetis MK66, a un microcontrolador NXP RT1020. Ambos son ARM, el proyecto portado debe de realizarse con MCUXpresso. Básicamente la portabilidad se centra en la nueva configuración del hardware, puertos GPIO, interrupciones, SPI de entrada por DMA, salida a varios puertos usando DMA y un par de timers con interrupciones. La aplicación de origen se hizo usado el IDE de Arduino, para el desarrollo de placas Teensy, que instalan microcontroladores NXP Kinetis MK66.

A continuación, describo mi requerimiento final: • Necesito un algoritmo en Python que de...en Python, enviara a través del equipo con conexión a Internet permanente) instalado en el negocio, lo siguiente: 1. Código de equipo 2. Snapshot de la cámara del equipo 3. Mensaje de objeto detectado 4. Fecha dd:mm:aa y hora hh:mm:seg en caso de objeto detectado 5. Inputs conectados (cámara) 6. Outputs conectados (led, parlante) GPIO del equipo. 7. Streaming de video de la cámara. 8. Estado del equipo El equipo recibirá: 1. Activaciones de outputs (led) GPIO del equipo. MUY IMPORTANTE: El pago al 100% del algoritmo se va a realizar cuando trabaje localmente la detección de objetos. El trabajo termina cuando se int...

...pequeño posible) - Antena externa obligatoria o conector para conectar - La programación debe asignar un rango fijo segun el puerto conectado, si conectas un dispositivo al puerto ethernet 1, este debe tener la ip acabada en .011, en el puerto #2, la ip acabada en .012 - La programación debe buscar una wifi con un SSID/ PASSWORD fijo y conectarse a esta wifi automaticamente - Necesito una entrada GPIO o similar para conectar un pulsador y detectarlo desde la programación ( se dará mas detalles ) Adjunto imagen para aclarar mejor el funcionamiento...

Necesito un software para un receptor gpio El programa debe ser para controlar barrera vehicular mediante una señal mandada al receptor por una antena lectora de tarjetas Pasar precios porfavor ponerse en contacto al [Removed by Freelancer.com Admin]

Necesito un software para un receptor gpio El programa debe ser para controlar barrera vehicular mediante una señal mandada al receptor por una antena lectora de tarjetas Pasar precios porfavor ponerse en contacto al [Removed by Freelancer.com Admin]

Desarrollo de aplicación para plataforma Android y iPhone que deberá comunicar con dispositivo Bluetooth y evaluar el estado del GPIO de este dispositivo y consultar datos con un servidor de acceso externo donde se consultan datos. Los prototipos usados para la comunicación serán Feather adafruit BLE o similar. El desarrollo quedará bajo propiedad del contratista y se requiere confidencialidad.

...software de edición de audio y los ultimos plugins utilizados. Esto es para que la operación del dispositivo no requiera de uso de monitores, los cuales solamente serían necesarios para cambiar los bancos de sonidos ya seteados. Debería poder apagarse con un boton, sin la necesidad de usar la interface del sistema operativo para hacer el shutdown. Quizas se podria asignar un boton mediante los puertos GPIO que reciba la orden del apagado del dispositivo. Se requiere minimizar el tamaño fisico del hardware al máximo, debido a que se alojará adentro de una cavidad con una tapa. Requerirá el uso de un conversor DAC que optimice la señal para que se reproduzca en un amplificador con buena calidad. La alimentación d...

Proyecto en visual studio 2013 o superior utilizando c# para conectarse a un RestService y obtener instrucciones para encender o apagar leds. El proyecto debe contener un timer que cada 2000ms se conecte al servicio rest y consulte el nuevo status que deben tener los leds y enviar al raspberry las comandos para apagar o enender los leds.

Adjuntamos vídeo de como debe ser el juego Al final de cada nivel se debe de activar un GPIO o similar, durante 200 ms. Son un total de 4 niveles, 3 de ellos van a activar un GPIO por 200 ms y el 4to va a reproducir un audio. Los materiales serán proporcionados en el formato que el desarrollador solicite. El desarrollo debe de ejecutarse en pantalla completa y al encendido del equipo. Se han realizado pruebas con Raspberry Pi3 con resultados satisfactorios a la hora de activar los GPIO, sin embargo, si el desarrollador ve mas factible otra plataforma se puede realizar el cambio.

Necesito acabar un script que detecte una pulsación de un Relé desde un puerto GPIO en Raspberry pi.

...potencia activa, reactiva, factor de potencia y frecuencia en baja tensión.<br /><br />Destaca por su comunicación RS-485 con potencial para conectar hasta 32 equipos en un mismo bucle o 128 a través de conversor, siendo capaz de ser controlado desde cualquier ordenador o dispositivo en red.<br /><br />Para la conexión entre el contador/analizar y la Raspberry se utilizará un adaptador de RS-485 a GPIO; este utilizará el protocolo MODBUS-RTU para la comunicación.<br /><br />El proyecto tendrá una duración de entre 1 y 3 días aproximadamente; y se tendrá que entregar a la máxima brevedad posible, siendo el plazo máximo de 5 días laborables.<br /&...

Nos encontramos en la búsqueda de un Analista Programador C++ para el desarrollo de una aplicación con entorno embebido en Linux.<br /><br />Llevará adelante el desarrollo de un sistema dentro de lectores RFID con transmisión de datos vía Socket e interacción con GPIO.<br /><br />El proyecto tendrá una duración estimada de 30 días <br /><br />Requisitos:<br /><br />Contar con avanzada experiencia en programación con lenguaje c++, socket, gpio, entorno embebido Linux.<br /><br />Modalidad de contrato freelance, con disponibilidad para trabajar eventualmente en las oficinas.

Se trata de un sistema de autonivelación con control de electrovalvulas para la agricultura. Los puntos a desarrollar son:<ul><li>?Control manual de las electroválvulas, ya se dispone de una placa que mediante GPIO activa y desactiva las electroválvulas</li><li>Lectura y filtrado de datos del acelerometro para evitar rebotes</li><li>Implementación del sistema automático de nivelación </li></ul>

...puerto 2002 y devuelve una cadena de caracteres estilo: <?xml version="1.0" encoding="utf-8”?> <root> <item> <gpio> <numero_GPIO> </gpio> <estat_gpio> <estat_GPIO> </estat_gpio> </item> </root> El segundo acepta conexiones en el puerto 3003 y procesa mensajes de la siguiente forma: El mensaje del cliente indica un puerto de GPIO, ejecutar los comandos linux pertinentes para activar dicho GPIO por un segundo. Ejemplo: exec(echo 1 > /sys/class/gpio/gpioX/value"); exec(sleep 1); exec(echo 0 > /sys/class/g...

Nesesito el desarrollo de una aplicacion para Beaglebone (puede ser en Ubuntu o Android) el cual debe manejar un modulo de GPS (este modulo lo selecciona el desarrollador y debe ser de facil adquisición y economicos) y mostrar en la pantalla LCD de la Beaglebone un mapa con la ubicación, esta asu vez debe enviar informacion a un servidor totalmente configurable, los datos de envio son posicion (GPS todos los que se puedan y sean necesarios), mansajes a usuario conectados (tipo chat) y la pulsacion de un boton que iria por RS232. L a aplicación tambien recibiria datos del servidor (comandas, estados, etc..) que este puede aceptar o rechazar, para la parte del mapa se debe contar con la seleccion del destino y mostrarle 3 posibles la ruta esto lo debe notif...

Programa para raspberry: El programa debe leer datos de un sensor SDI-12 conectado al puerto serial (o cualquier pin GPIO del Raspberry) y grabar en memoria SD. El programa debe enviar los datos almacenados en la memoria SD del rsapberry via ftp a un servidor ftp y al servidor xively. La configuración del servidor deberá almacenarse en un archivo de inicialización

...for an Embedded ESP32-C3FH4. ***This is for integration in an existing device that is currently utilizing a ESP32-C3 Supermini Dev Board Key functionalities should include: - Bluetooth connectivity - GPIO pins configuration - ADC Input - USB-C Female Plug - Serial TX and RX IO - Ten (10) GPIO functionalities This blueprint will serve as the basis of a prototype I am developing. As such, I'm seeking to partner with someone who is experienced and proficient in the following areas: ESP32-C3FH4 development and configuration including the following features: - Bluetooth connectivity - GPIO pins configuration - ADC Input systems - USB-C connection. - Serial Comms Please ensure your proposal reflects your ability to fulfil these requirements. Also please do NO...

...possesses advanced technical abilities in circuit design, analysis, and programming microcontrollers, namely with Raspberry Pi. These skills are necessary for the fruitful completion of the project. Key Responsibilities: - Design creativeness is a must as I place an emphasis on compact-sized micro-circuits. - Robustness is critical in order to effortlessly connect to external devices. - Implementing GPIO pins for sensor integration requires comprehensive expertise. - Responsibility includes diagnosing and troubleshooting electrical systems when the need arises. The successful freelancer will ideally have substantial experience in Python as this is the preferred programming tool for this project. The end goal is to develop a smoothly functioning system based on the defined para...

...protected and converted to other DC (present in CMIO) • USB-C with mini USB conector for programming (present in CMIO) • USB 3.0 (present in CMIO) • Ethernet (present in CMIO) • CANBUS • PCIe (present in CMIO) • SD card slot (present in CMIO) • HDMI to LVDS signal + backlight • AIS class B • Other UART inputs with optocouplers (to be decided) • GPS • GPIO ports accesss via male connector (compatible with Raspberri Pi) These are the main requeriments, maybe other minor will appear during the design. I can provide schemas for all the parts involved (can bus, LVDS, AIS,...). The job consist in the design of the board merging all schemas in one, and generate all the files needed ...

...need of a skilled C++ Developer who specializes in native cross-platform MCUs firmware and software development. Our ideal candidate would primarily help us develop a Windows, Linux, and macOS compatible monitoring system, specifically for voltage. The goal is to create a GUI application with specific features. These include: - Real-time monitoring - Graphical representation - Data logging - GPIO MCU ON/OFF control - Voltage and current real-time transfer to PC via USB-connected MCU SAMD21 This calls for not only proficiency in GUI application development, but also a demonstrated understanding of working with real-time data transfer systems. Real-time voltage monitoring and the know-how of system-level development will be crucial to this particular project. If you've d...

I'm seeking an experienced PCB designer to develop a custom ATSAMD21 Micro PCB board. - A USB interface, specifically pin header for most GPIO and USB D lines. - 10+ GPIO pins required for this project. The ideal candidate should have prior experience working with ATSAMD21 Micro PCB boards as well as an understanding of USB interface technology. Proficiency in board design and a keen eye for detail will be crucial for success in this job.

We are seeking an experienced PCB designer to develop a custom printed circuit board for a Raspberry Pi 4 Model B application. The project requires integrating specific components and ensuring the design can be enclosed within a standard industrial box. The successful applicant must have experience with power management and GPIO pin utilization. Key Requirements: - Experience with Raspberry Pi designs and GPIO pin functions. - Ability to integrate electronic components such as 5V relays into the PCB with high precision. - Familiarity with standard industrial connectors and terminals. This project aims to create a highly functional and reliable hardware system. Only applicants with a strong track record in custom PCB designs and the ability to work to exact specifications s...

I'm looking to upgrade my current ESP8266 controller to an ESP32 C3 Mini controller. I am primarily interested in freelancers with specific experience in this upgrade. Here's what I need: Requirement -1 : 1. Update existing Master Controller board based of ESP8266 to support ESP32 C3 IPEX/ (EasyEDA PCB design) 2. Retain GPIO connections and other circuits and components. 3. Ensure the position of LEDs, buttons and interfaces are as in current design 4. Ensure that the device supports handling loads upto 3A total without any heat with each port support upto 1 A Requirement -2 : 1. Redesign existing Zone Expander PCB board from Eagle to EasyEDA 2. Add LED Power indicator option 3. Ensure that the Expander handle upto 3A without any heating and each port handles upto 1A

I am in need of a Python programmer to work on my Raspberry Pi 4B. The tasks will involve controlling GPIO, integrating an I2C LCD display, programming a 4x3 keypad and dual speaker outputs, as well as controlling seven LED diodes. The project is time sensitive and must be completed before end of April 2024. Skills & Experience needed: - Proficient in Python - Practical knowledge of Raspberry Pi 4B - Experience with hardware integration, specifically GPIO Control, I2C LCD Display, and a 4x3 Keypad - Familiarity with creating and managing networking capabilities If you understand these requirements and are confident that you can successfully deliver this project, I encourage you to place a bid. Let's get started!

I am looking for an experienced engineer who can take on firmware development spanning several wireless devices with Wi-Fi 6, Wi-Fi 7, and LTE 5G connectivity. We are looking for Embedded Engineers to join our team. What you will do: Design, develop, and refactor cloud connectivity apps for our CPEs (Customer Premises Equipment). Reproduce, isolate, and deb...Experience with an OpenWrt-based build system, preferably QSDK. Ability to read and write simple scripts in common languages such as Bash, Python, etc. Deep understanding of C and C++ programming for a Linux runtime environment. Nice to have: Experience with Quectel or other vendor LTE. Experience with DeviceTree. Experience with Wireless Technologies. Experience with Luci. Experience with I2C, GPIO, PWM. This is an ongoing...

I am in need of a proficient Raspberry Pi programmer to access the Bluetooth and GPIO ports status of my Raspberry Pi 4 (1 or 2 gig version). Specifically, the tasks are to: - Enable access and control of the Raspberry Pi and attached relays via Bluetooth - Implement sensor data collection and analysis features - Develop IoT and home automation functionalities The ideal candidate will have experience in IoT development, home automation, and Raspberry Pi programming. Familiarity with Raspberry Pi 4 functions, specifically Bluetooth and GPIO ports, will be essential. A strong understanding of sensor data is also necessary.

I'm seeking an experienced embedded software programmer for a Keil 8051 microcontroller. The key functionalities required include: - Control of GPIO (General Purpose Input/Output) - Timer/Counter functionality Preferably, the freelancer should have prior experience with microcontrollers and a deep understanding of Keil 8051. You will be tasked with the development, testing, and debugging of the embedded software codes to ensure efficient and reliable interaction among the said functionalities of this microcontroller. Any experience with real-time operating systems is a plus.

The project uses: I2C GPIO Expander (I2C Address 0x30) ESP32-CAM I2C ADC Rain Sensor Gear Motor Driver (VNH7070AS) The PCB schematic is written in EAGLE

Project Title: S...compiler and STM Low Level Drivers (LL). - Ability to interface peripherals such as IRTIM, TIM17, TIM16, and GPIOB on the STM32F072 microcontroller. - Strong problem-solving skills and attention to detail. Key Skills: - Embedded C programming - STM32 microcontroller programming - Keil compiler - STM Low Level Drivers (LL) - Phillips RECS80 protocol - Peripheral interfacing (IRTIM, TIM17, TIM16, GPIO) Additional Information: - Duration: This is a contract based project - Location: This is a remote freelance position. How to Apply: To apply for this project, please submit your proposal outlining your relevant experience, approach to completing the project, and estimated timeline. Please include examples of previous projects demonstrating your expertise in embedde...

I'm seeking an experienced freelancer in embedded firmware development focusing on ESP32 microcontroller capabilities. My project needs the firmware to support: - WiFi connectivity - GPIO interfacing -MQTT -MQTT web dashboard setup An understanding of IoT applications and proficiency in C/C++ are crucial for this job. Previous experience working with ESP32 microcontrollers is very advantageous. Your task will be to construct reliable, efficient firmware making optimal use of the ESP32's interfaces listed above. You will also need to provide clear documentation of the firmware designed.

Develop simple application to send data over Lora module controlled by ESP32 module based on ADC and GPIO values.

hi, i am looking for someone who can make me an imagefile for my raspberryPi 3b. The imagefile must have a video looper included such as pi_video_looper, and the videos must be displayed on a waveshare 3,5 inch display like this (https://www.amazon.de/dp/B01JRUH0CY/ref=cm_sw_r_em_apip_pf1qEhCCwHKmx), connected to the gpio-pins of the Pi. Additional the display must be dark/disabled/inactive, when the last 2 gpio-pins (37 and 39) are connected, but the looped video continues running, even when the screen is dark.

I'm after someone skilled in Python and comfortable with Raspberry Pi functionality, specifically recording, streaming, and playing audio using a USB sound device. The heart of this project is to create an audio streaming ...playing audio using a USB sound device. The heart of this project is to create an audio streaming application. In particular: - Expertise in handling audio in/out of a USB device using Raspberry Pi. - Familiarity with WebRTC, as the project involves: - Peer-to-peer communication. - Working with Media Soup. - Recording with FFMPG. - Detecting specific tones in the audio streams. - GPIO pins understanding for feedback and triggering items. If you're someone passionate about audio and versed in orchestrating these components, I look ...

I am seeking a proficient electronics engineer or similar professional to design and develop a simple but reliable SPDT (Single Pole Double Throw) low voltage transistor microcircuit. The primary function of this microcircuit is switching between two circuits, not to amplify signals. We need to present a 5.1K GND to one of two GPIO pins on an MCU depending on the state of sensor output that throws a 5V high/low output on one single line Key Project Details: - The circuit should be designed to operate at low power levels to minimize power dissipation. - The preferred material for the transistor is Silicon. Ideal Skills and Experience: - Electronics engineering - Transistor theory - Circuit design and analysis - Experience working with silicon transistors and low voltage system...

The project consist in the design of a CM4 carrier board whit specific requirements. All con...other requirements follows • Maximum board size 100mmx200mm • Power souce 12v • USB-C • Ethernet • CANBUS (Can provide design sources) • PCIe • SD card slot • LVDS signal + backlight (Can provide design sources) • Marine AIS class B (Can provide design sources) • Other UART inputs with optocouplers (to be decided) • GPS (Can provide design sources) • GPIO ports accesss via male connector (compatible with Raspberri Pi) These are the main requeriments, maybe other minor will appear during the design. The job consist in the design of the board, and generate all the files needed by JLC...

...DEVELOPER TO WRITE a succesfull CODE and configurate the system to: Make a AUTO-VIDEOCALL from extention ''0'' to extention ''1'' or ''2'' or BOTH at the same time. The exctention ''1'' or ''2'' are log in to androip application, called ''PortSin'''or another app called ''Linphone''. Extention ''0'' is already loged into Raspberry with the programm ''Linphone''. When i press a button connected to GPIO 21 i want the audiocall to be started for 9 seconds. If the call is anwsered I also need to OPEN the DOOR by pushing number ''9'' at the android app. I have already progra...

...systems, with experience in real-time communication projects. The task is to create a MediaSoup client using Python 3, specifically to run on a Raspberry Pi 4. Key Features Include: - Sending and receiving audio-only communications via my MediaSoup server, for which you would require understanding of MediaSoup Library's. - The function should be able to trip GPIO pins as inputs and outputs. A sound knowledge of Raspberry Pi GPIO pin handling is essential. This project provides an excellent opportunity for those proficient in Python, Raspberry Pi operations, and real-time online communication systems. Understanding MediaSoup protocols and encoding would be an added advantage. It's essentially bridging the gap between hardware and software communications. If ...

I have Raspberry Pi 4 and I2C device connected to Raspberry. Also I have a ubuntu server at AWS. There is an application working on AWS server. It try to read data from i2c bus (ecc://i2c-1). This program try to find i2c-1 bus under "/dev". I want to reach i2c-1 on Remote Raspberry. You can use Remote GPIO on raspberry pi or you can use any other application. Only i need, my application on server should communicate /dev/i2c-1 device (This could be remote raspberry i2c device)

I am in need of a capable developer to design a PHP web page that allows me to control the GPIO pins of a board like Raspberry Pi. This web page should be able to read and write GPIO the board is i created a .py file and try to call the .py file from the .php file the .py can't create the GPIO i try with sysfs_handle = open("/sys/class/gpio/export", "w", 423) if (sysfs_handle): ("423") print("GPIO 40 pin 423 opened for EXPORT") else: print("Can't open gpio/export. Something went wrong. Are you root?") sysfs_handle = open("/sys/class/gpio/gpio423/direction", "w") the first command works (return GPIO 40 pin 423 opened for EXPORT) but when...