Raspberry pi voltage data loggercông việc

Tôi có 2 thiết bị Raspberry Pi 4, Tôi đã backup thẻ nhớ SD của thiết bị Ras A bằng phần mềm Win32DiskImager, sau đó restore nó vào thẻ nhớ khác và cắm vào thiết bị Ras B nhưng nó báo lỗi và không thể hoạt động, hy vọng ai đó có thể giúp tôi sửa chữa nó. Ảnh đính kèm lỗi được tải lên bên dưới.

Mình cần tìm người code 1 app Android bằng Android Studio có các chức năng như: -Có mật khẩu tài khoản đăng nhập -Chụp hình bằng camera của raspberry pi sau đó hiển thị thông báo khi có người nhấn button gắn trên raspberry -Điều khiển đóng mở relay gắn với chân Raspberry pi từ xa -Xem Camera của Raspberry từ xa -Xem lại hình ảnh đã chụp bằng Raspberry

Mình cần 1 bạn hướng dẫn nối MCP3204 và cảm biến MQ-3 vào Raspberry để lấy nồng độ cồn.

Mình cần người làm app Qt build cho Windows và Linux Raspberry. App sẽ kết nối với bo mạch của mình qua cổng USB hoặc Com (RS232) và làm các việc sau. - Nhúng Google , chọn tọa độ trên bản đồ rồi bấn send sẽ gửi tọa độ đó cho mạch biết. - Hiển maker tọa độ do mạch gửi cho PC - Mạch liên tục gửi tọa độ 1s/lần cho PC, app sẽ vẽ đường chạy của tạo độ đó trên Google maps. Giống như bộ GPS tracking. - Một vài chức năng phụ khác như bấm icon A sẽ gửi ký tự 'A' cho mạch, Icon B sẽ gửi kí tự 'B' cho mạch lưu. Mạch gửi lên chữ 'A' sẽ chọn icon A hiển thị... Ưu tiên Developer làm việc tại khu vực Hà Nội hoặc Hồ Ch&iacu...

Mình đang cần 1 bạn code python trên raspberry pi 3b+ liên kết với máy in nhiệt mini và router Mikrotik Chức năng: Bấm 1 nút sẽ tạo user/pass trên router Mikrotik và sẽ in user/pass đó qua máy in nhiệt

Sử dụng Rak 831 cùng Raspberry làm thành gateway, rak 811 là node gởi dữ liệu.

Hallo, mình tên là Sơn. Đang viết một phần mềm bằng QT trên Ubuntu và cross compiling cho Raspberry Pi. Mà nó báo lỗi không tìm ra thư viện libusb. Bạn có thể check cho mình lỗi đó được không. Và giá cả như thế nào nhắn mình nhé. Tks

Hallo, mình tên là Sơn. Đang viết một phần mềm bằng QT trên Ubuntu và cross compiling cho Raspberry Pi. Mà nó báo lỗi không tìm ra thư viện libusb. Bạn có thể check cho mình lỗi đó được không. Và giá cả như thế nào nhắn mình nhé. Tks

Hallo, mình tên là Sơn. Đang viết một phần mềm bằng QT trên Ubuntu và cross compiling cho Raspberry Pi. Mà nó báo lỗi không tìm ra thư viện libusb. Bạn có thể check cho mình lỗi đó được không. Và giá cả như thế nào nhắn mình nhé. Tks

Hi Khánh, mình thấy tên bạn trong project này (https://www.freelancer.com/projects/php/telegram-channel-web-scraper/) Mình muốn nhờ Khánh làm giúp mình một con bot như vậy được không? Mục đích không được trong sáng cho lắm :) Đức

Xin chào. Hiện bên mình đang có kế hoạch thiết kế một thiết bị có màn hình cảm ứng 7 inch sử dụng Raspberry Pi hoặc 1 Linux board nào sẵn có trên thị trường. Thiết bị cần viết App để truyền dữ liệu đến bo mạch khác qua Usart hoặc SPI Cần người tại Hà Nội am hiểu về Linux computer hỗ trợ & hướng dẫn một số phần bên mình đang yếu. Gặp và làm việc trực tiếp tại Hà Nội. Hợp tác lâu dài không chỉ project này. Cám ơn!

Xin chào Tôi muốn làm một thiết bị sử dụng bo mạch Linux sẵn có trên thị trường, ví dụ như Raspberrypi để xây dựng một thiết bị có app chạy trên đó. App sẽ làm nhiệm vụ click màn cảm ứng truyền đi dữ liệu qua cổng UART hoặc SPI. Cần tìm người tại Hà Nội, hợp tác lâu dài không chỉ dự án này...!

Raspberry con Whatsapp Raspberry con Whatsapp

Tìm hiểu mã nguồn mở opendatakit để xây dựng hệ thống cảnh báo an toàn Ý tưởng là phát triển một Hệ thống thu thập dữ liệu gồm: - Ứng dụng mobile: Cho phép nhập thông tin cảnh báo và truyền về server - Ứng dụng phân tích và hi...được từ mobile app, ứng dụng web sẽ phân tích và hiện thị các thông tin trên web. tìm hiểu hệ thống OpenDataKit tại địa chỉ Mục tiêu là build lại từ source, deploy trên máy phần web hiển thi Phần mobile build ra file apk cũng chỉnh lại giao diện tiếng việt một chút, đồng thời hướng dẫn mình để nắm được hệ thống. Phần app mobile được viết bằng android ( code mình đ&a...

Cần làm 1 ứng dụng chat hoặc OTT trên Adnroid có nhiều chức năng hơn cả ZALO , wechat và các phần mềm chat hiện đang có trên thị trường. ( Tất cả đều là ý tưởng của mình và mình sẽ bỏ tiền ra truyền thông quảng bá cho ứng dụng này) Về các chức năng cụ thể có thể liên hệ mình để trao đổi Mọi người cứ báo giá ở đây . Liên hệ mình qua Sờ kai pi: tnt_1311

Cần làm 1 ứng dụng chat hoặc OTT trên Adnroid có nhiều chức năng hơn cả ZALO , wechat và các phần mềm chat hiện đang có trên thị trường. ( Tất cả đều là ý tưởng của mình và mình sẽ thực bỏ tiền ra truyền thông quảng bá cho ứng dụng này) Về các chức năng cụ thể có thể liên hệ mình để trao đổi Mọi người cứ báo giá ở đây . Liên hệ mình qua Sờ kai pi: tnt_1311

Cần làm 1 ứng dụng Android để bán điện thoại di động với nội dung đã có sẵn trên website . Giá cả thoả thuận Chi tiết liên hệ : sờ kai pi: tnt_1311

We are working on a project that requires interfacing a Raspberry Pi with a Panasonic Servo Driver. We need a professional to perform the following tasks: - Setting up Modbus communication between Raspberry Pi and Panasonic Servo Driver (Model Number: MDDLT55SF) to control Panasonic motor (Model Number: MHMF092L1U2M) - Setting up CC-Link IE TSN communication between Raspberry Pi and Mitsubishi Driver (Model:MR-J5W3-222G) to control the Linear Motor (SMJ LMU) + Hall Sensor connected to Linear Motor (US2881 Melexis) - Writing code for controlling the servo driver from the Raspberry Pi - Testing and debugging the system - Providing support for any issues that may arise during the project Previous experience with Raspberry P...

...electrician or electrical engineer for my established medium-scale business facilities. Our predominant energy consumption is due to lighting and heating systems. The successful candidate will: - Review our current electrical consumption across four venues - Identify areas of high consumption - Formulate appropriate strategies and actions to minimize energy usage Knowledge and experience in voltage regulation, phase balancing and energy efficiency best practices are highly essential for this project. Proactive suggestions such as implementing alternative energy-saving devices or technological solutions are welcomed. The ultimate goal is to significantly reduce our energy spend while maintaining operational efficiency. Please bring your expertise to this task and help us achie...

I'm looking for ...other related issues. Key components: - I've decided to use an ESP32 board instead of the conventional Arduino boards for this project. - The current sensor I'd like to implement includes ZMPT101B and ACS712. - The voltage sensor I'd prefer to use are the ZMPT101B and ACS712. Your tasks would include: - Writing the code required for the ESP32 board to interface with the current and voltage sensors. - Creating the fault detection algorithms in the code. Ideal skills and experience: - Proficiency with Arduino and ESP32 development. - Experience in working with current and voltage sensors. - Understanding of fault detection systems. This project is critical, and I'm looking for someone who can deliver high-quality work and ...

I am in search of an expert in the integration of RPLIDAR with Raspberry Pi for the purpose of navigation and obstacle avoidance in a medium-sized environment like an office building. More specifically, the freelancer is required to: - Program the Raspberry Pi to operate the RPLIDAR. - Create an algorithm or a method that can take in real-time data from the RPLIDAR and efficiently convert it into a visual, real-time map. - Use the mapped data for navigation and obstacle avoidance by the Raspberry Pi. Ideal Skills and Experience: - Proficiency in working with Raspberry Pi. - Experience in programming RPLIDAR. - Good working knowledge of obstacle avoidance algorithms. - Proven experience in navigation systems, particu...

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I'm creating a project in Simulink that focuses on developing a modifed Fractional Open Circuit Voltage (FOCV) with PSO MPPT system for Solar PV systems. Key Points: - The project specifically requires expertise in Simulink for development of the MPPT system. - You need to be well-versed in the FOCV algorithm and particle swarm optimisation . - Your experience in working with Solar PV systems will be highly beneficial.

pI am looking for an experienced software developer to create a PVC software for me. The core features required are: - PDF data extraction and printing: The software should have the capability to extract both text and images from PDF files and facilitate printing of the same. Proficiency in PDF manipulation tools is highly desired. - Image extraction and printing: in addition to text, the software should efficiently extract images for printing. - Localization: The software should fully support localization for all local Indian languages, with specific advantages in Hindi, Tamil, and Bengali. Understanding of the cultural context and linguistic nuances associated with these languages is a bonus. Ideal candidates will have a strong background in software development and p...

I am in need of an experienced professional who can help with an enhancement to our powerflow analysis util...powerflow analysis using Power Factory software - Implement enhancements to improve overall power system efficiency - Ensure compliance with regulatory standards and best practices - Provide a detailed report on the analysis and suggested improvements Ideal Skills and Experience: - Proficiency in Power Factory software - Strong background in power systems analysis - Familiarity with power losses, voltage stability, and power transfer optimization - Excellent analytical and problem-solving skills - Ability to deliver a comprehensive report with clear recommendations Please reach out if you have the necessary expertise and skills to support this project. No teams or compani...

I am aiming to have a pi zero programmed to read voltage levels from a 12-volt battery bank. The trigger to start the generator should be a low voltage condition. The purpose of this project is to remotely start the generator, with a focus on maintaining efficiency and practicality through a direct physical connection. Key objectives include: - Programming the pi zero to accurately gauge low voltage conditions - Enabling the generator to automatically power up in case of a drop in voltage. - Continuing the generator input even after the voltage returns to normal, with this feature designed to maintain a steady and reliable power supply. Ideal Freelancer Skills: - In-depth understanding of Raspberry Pi Zero programming for ...

...project that requires interfacing a Raspberry Pi with a Panasonic Servo Driver. I need a professional to perform the following tasks: - Setting up Modbus communication between Raspberry Pi and Panasonic Servo Driver (Model Number: MDDLT55SF) - Setting up CC-Link IE TSN communication between Raspberry Pi and Mitsubishi Driver (Model:MR-J5W3-222G) - Writing code for controlling the servo driver from the Raspberry Pi - Testing and debugging the system - Providing support for any issues that may arise during the project Previous experience with Raspberry Pi and Panasonic Servo Drivers is a must. Additionally, the ideal candidate will have a strong understanding of programming in Python, as well as a background in robot...

I need to wrap a label (fictitious) on a soup can - the label is already created with aspect ratio of Pi - once the label is applied to the can, the can needs to rotate 360 degrees so we can see all parts of the label. I want a photo realistic render at 4K with an alpha channel so I can layer it onto a background if I choose to. I will need a few 6K still renders also. I have attached a few of the photoshop mock-ups I have created.

I'm seeking a skilled PCB circuit designer to create a digital circuit f. The primary function of the circuit is PWM Motor Speed Control Key requirements: Input supply voltage: DC 2.5V-25V The maximum output power: 350W The maximum continuous output current :15A The overload and short circuit protecting current is 25A PWM frequency: 25-30kHz Duty Cycle adjustable: 0-100% The operation environment temperature:-20℃-40℃ Ideal freelancer would have: - Proven experience in digital PCB circuit design - Strong knowledge of signal amplification principles - Familiarity with radio technology and its requirements - Ability to optimize circuits for low gain

I am seeking an experienced engineer to design and implement a two-axis machine control system that is capable of: - Effectively controlling and managing the mov...mechanisms particular to these types of systems is a must. Ideal expertise for the job includes: - Comprehensive knowledge in machine systems control and design. - A thorough understanding of motion control strategies. - A background in data analysis and logs processing. The machine is a Bandsaw to cut small logs into planks. The 2-off, NEMA 23 stepper motor movements are sequential, ie, first one moves then the second stepper moves. The controller is a Raspberry Pi 4, the prefered language is Python. Input to the controller via R Pi 7inch Touchscreen. File is to big to attach ...

I am seeking an experienced engineer to design and implement a two-axis machine control system that is capable of: - Effectively controlling and managing the movements o...feedback mechanisms particular to these types of systems is a must. Ideal expertise for the job includes: - Comprehensive knowledge in machine systems control and design. - A thorough understanding of motion control strategies. - A background in data analysis and logs processing. The machine is a Bandsaw to cut small logs into planks. The 2-off, NEMA 23 stepper motor movements are sequential, ie, first one moves then the second stepper moves. The controller is a Raspberry Pi 4, the prefered language is Python. Input to the controller via R Pi 7inch Touchscreen. File is to big to attac...

...Natural Language Processing: The platform should possess advanced natural language processing capabilities. - Voice Chat: The ability for the platform to support voice-based communication. - Image and Multimedia: The platform should support a range of multimedia options, from text to photo uploads. Platform Support: The mobile application should support the interface and experience similar to that of Pi from Inflection AI or ChatGPT from OpenAI. Design: The design should be sleek and modern, catering to a professional and tech-savvy audience. Ideal Skills and Experience: - Proficiency in natural language processing and machine learning - Strong UI/UX design background - Extensive experience in mobile application development - Familiarity with platforms such as Inflection Ai or...

I am currently developing the field oriented control system for a permanent magnet synchronous motor. My goal is to improve the speed response, specifically the acceleration time, deceleration time, and steady state error. The project involves the tuning of PI controllers within the system, meant to enhance its overall performance. For this task, a proficient knowledge of control systems, system modeling, and tuning methods is required. Previous experience with PI tuning is beneficial. Currently, MATLAB/Simulink is being used for modeling and system simulation, hence proficiency in it is crucial. Ideally, the candidate will have extensive experience using MATLAB for complex motor control simulations. However, I haven't defined the specific tuning methods to be used w...

I am looking for an expert with solid experience in Fiel...looking for an expert with solid experience in Field Oriented Control (FOC) of Permanent Magnet Synchronous Motors (PMSM) who can help tune my PI controllers for more precise speed control. Here are the specifics: - I have an established model using MATLAB/Simulink, and the PI controllers are already implemented. - The key outcome I want is to enhance the accuracy of the speed response. The ideal candidate will have: - Extensive knowledge and experience with PMSM and FOC. - Proven background in tuning PI controllers. - Strong proficiency in MATLAB/Simulink. Your task will involve analyzing the existing model, suggesting enhancements for the PI controllers, and implementing these changes to achieve...

...control, so the design needs to be both efficient and reliable. Key requirements: - The relay bank should be small in size, while still accommodating 6 triggers at 230 volts. - The design must include a dry switch rated at 13 Amps. - The PCB must be designed with the intention of obtaining CE certification. Ideal skills for this project include: - Proficiency in PCB design, particularly for high voltage applications. - Experience in designing for industrial control applications. - Knowledge of CE certification requirements for PCBs. It's crucial that the design be not only functional but also compliant with CE standards. I look forward to working with a professional who can bring these elements together in a reliable and efficient PCB design. The drawing attached is on...

I am in need of an experienced professional who can help with an enhancement to our powerflow analysis util...powerflow analysis using Power Factory software - Implement enhancements to improve overall power system efficiency - Ensure compliance with regulatory standards and best practices - Provide a detailed report on the analysis and suggested improvements Ideal Skills and Experience: - Proficiency in Power Factory software - Strong background in power systems analysis - Familiarity with power losses, voltage stability, and power transfer optimization - Excellent analytical and problem-solving skills - Ability to deliver a comprehensive report with clear recommendations Please reach out if you have the necessary expertise and skills to support this project. No teams or compani...

I need a technical expert skilled in Raspberry Pi integrations to create a display of GPS coordinates, IMU data, and set the frequency for a TBS satellite receiver on a 7inch LCD screen. The components for this project are: - GPS module - IMU module - TBS satellite receiver The LCD display should show GPS coordinates and IMU data in real-time. It also needs to set the frequency for the TBS satellite receiver. The Raspberry Pi setup will be powered by a battery, so considering power consumption in the build is important. Ideal skills for this job would include: - Experience with Raspberry Pi integrations - Familiarity with GPS modules and IMU modules - Knowledge of frequencies for TBS satellite receivers - Proficient in power man...

I am in need of an experienced professional who can help with an enhancement to our powerflow analysis util...powerflow analysis using Power Factory software - Implement enhancements to improve overall power system efficiency - Ensure compliance with regulatory standards and best practices - Provide a detailed report on the analysis and suggested improvements Ideal Skills and Experience: - Proficiency in Power Factory software - Strong background in power systems analysis - Familiarity with power losses, voltage stability, and power transfer optimization - Excellent analytical and problem-solving skills - Ability to deliver a comprehensive report with clear recommendations Please reach out if you have the necessary expertise and skills to support this project. No teams or compani...

I am looking for someone with experience in Comsol simulation to help with piezoelectric energy harvester design at the earliest, ideally within a week. - Beyond the simulation work, I need someone with strong documentation skills. - Required: 1) Generated voltage and power for applied strain% (like in cantileve) 2) Device capacitance, resonance frequency & impedance 3) Piezo strain coefficients for device geometry 4) Displacement (actuation) for different voltage 5) Sensitivity (output) for different level of stimuli (added mass in grams and pressure)

We are seeking an experienced skilled Raspberry Pi developer for an exciting machine workflow using Raspberry Pi and servo motors. The project involves developing software for control, and integrating the Modbus TCP/IP protocol. The successful candidate will demonstrate expertise in Python programming, servo control, and Modbus communication. Phase 1: Set up the Raspberry Pi 4b to control servo motors and configuring communication with the Panasonic Minas Driver and Panasonic Servo Motor. Install Modbus server software and develop custom Python scripts for Modbus communication and servo motor control. Phase 2: Control Iron Core Linear motors and configuring communication with the Mitsubishi Driver . This can turn into a long term project for ...

I'm seeking a skilled individual to assist with a multi-machine power system dynamics analysis and control. The primary goal of this project is t...goal of this project is to optimize power flow efficiency. Key Requirements: - Proficiency in power systems dynamics and control analysis - Experience with multi-machine systems - Ability to optimize for voltage levels Your responsibilities will include: - Conducting power system dynamics analysis - Implementing control measures to optimize power flow efficiency - Focusing on voltage levels optimization Ideal candidates should have a strong background in power systems, and be able to work on a multi-machine system. This project will require a good understanding of power flow and voltage levels in order to maximize ...

...memory block and sends it to RS485 with the reader's 4-byte ID. 6c) The RS485 command should be able to change the reader's 8-byte ID and update it in EEPROM. 7) One or two digital sourcing outputs that can send a pulse to a lock or an indicator lamp. Let's say 500mA. 8) One or two digital inputs, sinking, working in the full range of the power supply voltage. 9) Power voltage range 5-26VDC. A decent capacitor must compensate for possible voltage drop when an output is energized. 10) External connections: holes for a 1.27mm compatible for a header connector. Flexible wires will be soldered in production. Pogo pins will be used for programming. 10a) Power VCC and GND 10b) Digital outputs and outputs 10c) RS485 A+ and B- 10d) Programmer and debugger int...

...Requirements: - Transparent Display: The display needs to be integrated in front of a small lens, which will then be in front of an image sensor. The display will serve as the light source, allowing light to reflect off the sample. - Raspberry Pi Integration: The device should be able to stream footage through a Raspberry Pi. Ideal Skills and Experience: - Prior experience in designing and building similar handheld devices or microscopes. - Knowledge of integrating transparent displays and image sensors. - Proficiency in programming and working with Raspberry Pi would be a plus. - Understanding of scientific research needs and standards. The ideal candidate for this project should be able to assist with the full development cycle f...

Build an ISO for a raspberry pi (with cellular notecard) to scan for unique cell phones in a specific range and log the unique phone ID and timestamps/ping (distance) from the raspberry pi and store in mysql database using cellular adapter.

...on a Raspberry Pi. The outcome should be displayed on an LED. The following are the key requirements for this project: - **LED Display Design:** I don't have a specific design in mind for the LED display, so I'm open to creative suggestions. It would be great if the design can enhance the user experience and make the game more engaging. - **Programming Language:** I'd prefer the game to be developed using Python. Please ensure you're proficient with Python and can create a smooth and efficient game. - **Control Mechanism:** I'll need the game to be controlled via a web interface that's accessible through a network. This is essential for user interaction and convenience. Ideal skills and experience for this project include: - Proficiency in P...

...see that the section to monitor for changes is the one highlighted in blue. What I need to know is which HTML code should be copied from the website in order to monitor it and add it to a new flow. (attached the example) Provide a list of required dependencies and instructions for setting up and configuring the flow, including Telegram bot integration, so I can install/configure them on my Raspberry Pi. Important: MAX BUDGET 45€ - No Dummy Offers . Please don't send me dummy offers just to make the initial Contact and then ask for more money....

I am planning to use 1.69" LCD Display Module (240x280) with raspberry pi 5 to draw animated eye … I am looking for a developer to help me in 1- setting up the screen to work with raspberry pi 5 like this :RPI_for_1.69_lcd_module 2- setting python on my raspberry 3 - write a python code to draw animate eye like this I will give remote access to my raspberry pi 5 and the developer should install everything live to my items.

...fitness rig that involves real-time human movement tracking. The system should be a combination of microcontrollers and computer vision technology, specifically using Arduino boards and Raspberry Pi. Key Requirements: - Real-time Movement Tracking: The primary functionality of the system is to track human movement accurately and in real-time. This involves capturing and processing data on various physical activities. - Minimalistic and Functional Design: I envision a setup that is small, lightweight and unobtrusive. Skills and Experience Needed: - Proficiency with Arduino boards and Raspberry Pi is a must. - Experience with computer vision, machine learning and human movement tracking is highly desirable. - Understanding of fitness or spo...

I'm looking for a talented Kivy designer to help me bring my application to life on a Raspberry Pi. Key requirements: - Designing user interfaces: My ideas are solid but I need someone who can make them a reality on screen. - Creating interactive buttons and widgets: The application needs to be intuitive and user-friendly. - Integrating code with the UI: The successful applicant will be able to help me to integrate the back-end code with the user interface. Ideal skills and experience: - Proficient in Kivy: As a Kivy designer, you should have experience in developing applications on this platform. - User interface design: You should have a strong portfolio of previous user interface designs that you can draw upon. - Attention to detail: A keen eye for detail is essent...

...see that the section to monitor for changes is the one highlighted in blue. What I need to know is which HTML code should be copied from the website in order to monitor it and add it to a new flow. (attached the example) Provide a list of required dependencies and instructions for setting up and configuring the flow, including Telegram bot integration, so I can install/configure them on my Raspberry Pi. Important: MAX BUDGET 45€ - No Dummy Offers . Please don't send me dummy offers just to make the initial Contact and then ask for more money....