Arduino stepper motor project jobs

I need a talented Labview developer who can construct a GUI that reflects real-time data from a test motor. Key Features: - Display pressure information from three separate tanks. - Incorporate a visual alarm feature on the GUI that is triggered if the_pressure exceeds a specific limit. Ideal Candidate: - Extensive experience with Labview is crucial. - Previous work with GUI development, especially for real-time data monitoring, is highly desirable. - Familiarity with mechanical or automotive systems, specifically motors, will be a strong 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

I'm seeking an experienced electronic engineer to assist me in setting up temperature control systems in my wine cooler. - To successfully accomplish this, you will need skills and proficiency in circuit configuration and electronic engineering. - I have a particular circuit dia...setup of the cooler. - The prime task for these circuits will be to effectively regulate the cooler's temperature. Currently have BOM list and parts ready. I need help with 3 things 1. Reviewing BOM list and ensuring i have the correct setup (inc ensuring certain parts are waterproof) 2. Guide me through setup (connecting parts) 3. Guide me through testing The project is very simple 1. Activate 3 buttons to start motor (each button in 3 different time lengths) 2. charing port...

...description of the project, please look at PDF description: The mechanical system that needs to be developed consists of 3 different main parts: - a DC motor (3V7) with gearbox, - a short plastic piece X connected to motor shaft (rotating RED COLOR) - a long plastic piece Y connected to X and use grease and mounted on external shaft (indicated by PINK COLOR) A printed circuit board will be equipped with the correct transistor drivers while the motor signals (pulsating or not) will be generated by a microcontroller The intention of this design is that 2 identical pieces of Y (call Y1 and Y2 for reference purpose) can move synchronously together (exactly same movement) or individually (opposite of each other lets say or one moving and the other one stand still)...

I'm in need of collaborative assistance on a project involving embedded systems with specifics on Arduino and Input/Output operations. Key Requirements are: - In-depth understanding of both hardware and software aspects of embedded systems. - Proficiency in Arduino programming language is critical. Expertise Needed: - Deep knowledge of Arduino ecosystem. - Experienced talent in diagnosing and troubleshooting. - Strong skillset working with various I/O operations. Unfortunately, I omitted the specific Arduino model we are using, but your expertise in a variety of models will be an advantage. Please respond with your skills and experience in this field.

I am aiming to c...high-functioning Arduino project specializing in sensor monitoring. The particular sensors I will be utilizing in this project include both temperature and gas sensors, along with motion and distance sensors. Requirements: - Proficient understanding of how to integrate multiple sensors on an Arduino platform. - The chosen freelancer must have significant experience managing and combining data from different types of sensors - Proficiency in data recording is required as the sensor data needs to be recorded every second. Ideal Skills: - Expertise in Arduino-based projects - Experience with temperature, humidity, motion, and distance sensors Experts in Arduino coding with the mentioned skills are preferred for succ...

...doorbell system While I currently don’t own any smart devices in my home, my primary goal is to upgrade my home with a touch of convenience and automation. Hence, your expertise in this realm would be highly advantageous. Your bid should include your approach, timeframe and a list of required devices for the project. Looking forward to your proposals. More details: Smart home. The smart home system has the following parts. Transmitter Several buttons are connected to the ports of an Arduino Pro Mini. When the respective button is pressed, and the gate goes low, a signal is sent to the receiver. The signal is sent with LoRa. (RFM95 433MHz) The transmitter is powered by 3 AAA batteries or an equivalent battery. The power circuit is replaced with a circuit that d...

I'm looking for a skilled Arduino programmer who can flawlessly execute a small but crucial part of my project. Here's what I need you to do: - Sensor Integration: I have a motion sensor that needs to be connected to my Arduino device with perfect calibration. - Motion Sensor Action: The motion sensor's primary function would be to detect any activity and consequently, turn on a light. - Troubleshooting: Post-installation, you may be required to iron out issues, if any, to ensure smooth functioning. Therefore, apply if you have: - Proficient knowledge and prior experience in Arduino - A good handle on incorporating motion sensors - A knack for problem-solving and debugging Remember, I am after flawless integration and execution. Y...

I’m looking for someone to help do the heavy lifting on a project. I need a Arduino (esp32?) Wi-Fi preferably but Ethernet is fine too. can handle 50 input buttons. Each of those 50 would then send out an OSC commands. I can do the physical work of assembly, install , basic configuration.

I'm seeking a diligent electronics expert proficient in Python, with experience in microcontroller, sensor usage, Arduino, PCB design, and RS485. Your responsibility will entail: - Developing STM32 based prototype using dev boards - Find best suited sensors for our needs (suggestions supplied) - Develop software for Main controller including 4G communication - Develop RS485 for the main controller to talk to at least 4 sensor boxes each with up to 15 sensors - Develop software for sensor boxes - Develop software for handling data form sensors such as temp, humidity, vibration, sound pressure, diff pressure, water detection, voltage, currency. - APIs for secure data storage on the Azure Mysql servercollection. - Effectively managing periodic data collection functions. - Be pro...

If you are not Emon K., do not bid on this project. It will be a waste of one of your bids. I want to rank in the top three google results on average for the following keyword phrases Target Country is USA 1 - Accident Lawyers 2 - Truck Accident Lawyers 3 - Car Accident Lawyers 4 - Boat Accident Lawyers 5 - Construction Accident Lawyers 6 - Lyft Accident Lawyers 7 - Uber Accident Lawyers 8 - Pool Accident Lawyers 9 - Personal Injury Lawyers 10 - Motor Vehicle Accident Lawyers 11 - Personal Injury Lawyer Near Me 12 - Lawyer For Car Accident 13 - Personal Accident Lawyer 14 - Car Lawyer Accident 15 - Attorney Personal Injury Near Me 16 - Accident Lawyers Car 17 - Personal Injury Lawyer Attorney 18 - Car Accident Attorney Lawyer 19 - Accident Lawyer Ne...

Please Sign Up or Login to see details.

I need a skilled programmer with experience in Raspberry Pi Pico WiFi and sensor data handling to create a example web server from arduino builder to pico-sdk cmake. KEY SPECIFICATIONS: end goal is convert this example and dependencies to picow-sdk cmake. REQUIRED SKILLSET: - Experience working with Raspberry Pi Pico Wifi and pico sdk

...small-sized custom Printed Circuit Board (PCB) with integrated ESP32 and DRV8833 motor control drivers and 18650 rechargeable bttery. - PCB Size: The PCB should be small-sized, built with quality and precision, and space-efficient. - Motor Control: It needs to control a DC Motor using DRV8833 motor driver, ensuring optimal performance and minimal signal interference. - Voltage Range: The PCB should be designed to handle an input voltage of 5V, ensuring it's safe and efficient. - Battery: The design should incorporate a rechargeable battery without compromising the compact size. The ideal candidate should have proficient skills and experience in PCB design, electrical engineering, and ESP32 integration. Knowledge of motor drivers and familiarity...

I'm seeking an expert electronics engineer to design a circuit for an Arduino-based, battery-powered hand warmer device. This design must incorporate intelligent functionality for temperature and run-time control. Key requirements are: * The device should warm up to 42°C and maintain this for one minute. After that, it should shut down and take a break for an hour (this cycle to repeat continuously). * The unit must have a maximum temperature limit of 45°C. * There should be a 0.96 inch OLED screen displaying temperature and time status. * The design should include push button control to start the skin warming and once the push bottom pressed again the program should quit off the warming cycle . * Using Normally closed temperature switch 45 deg. as safety feature ...

I am looking for a skilled electrical or mechanical engineer to develop a 12v motor speed controller specifically for an industrial machine. This controller will primarily serve to regulate and adjust the motor speed as needed. The equipment is designed to function in an outdoor environment and hence, the controller's design should take into account factors such as weather conditions and robustness. Key Requirements: - Proficiency in electrical/mechanical engineering - Experience with 12v motor speed controllers - Knowledge of industrial machinery operation - Ability to design devices for harsh outdoor environments Considering the project's specifications, an engineer with a background in designing control systems for outdoor industrial equipment will be ...

I require assistance for an issue I'm experiencing with an Arduino library for BQ34110. I've managed to get most of it up and running but I'm struggling with reading the Firmware Version and Device Type. I know I need to read 0xFFA5 from the command register first, but I only receive 0xFFFF then when I try to read the firmware version it returns 0xFFFF If I try to read other parameters such as device name, voltage, current etc... it works. I read in the datasheet that Device Type and Firmware Version are the only 2 registers that require special attention.

I am seeking an Arduino expert to build a specialized library for my TI BQ78350. I need to be able to read these paramaters Static DF Signature ManufactureDate SerialNumber ManufacturerName DeviceName DeviceChemistry Discharge FET Charge FET I also need to be able to switch the Discharge FET and Charge FET on and off. I need this within 24 hours. The chosen freelancer must have extensive experience in and a deep understanding of Arduino Uno as the developed library will need to be compatible with it. Expertise in Arduino programming and a good understanding of the TI BQ78350 chip is crucial. Ultimately, I'm looking for someone who can deliver a reliable, high-performing solution, so if that sounds like you, I'd love to hear from you.

I'm looking for an expert in motor control systems who can help me synchronize two 24V DC motors to improve efficiency. The project involves designing and implementing a physical interface to control the motors. Ideal Skills & Experience: - Extensive experience with DC motors - Proficiency in motor control systems - Knowledge of physical interface design - Experience with handheld remote control systems Your Role: - Develop a way to synchronize two 24V DC motors for increased efficiency - Design a physical interface to control these motors - Ensure the system can be operated through a handheld remote control - Validate the system's performance and efficiency.

88mm x 52mm card with rounded corners: Front: Brand Logo: Position prominently at the top. Catchy Headline: "Thank You for Powering Up with Us!" Confidence-Boosting Line: "Your tire inflator is built for reliability." Phone Number: Small but legible near the bottom corner. Back: Warranty Highlight "12-Month Motor Warranty - We've got your back!" QR Code (Feedback): Large and clear placement. Call to Action: "Love your inflator? Scan to share your experience!" contact email: Design Considerations Colors: Align the color scheme with your brand identity for a cohesive presentation. Font: Choose clean, easy-to-read typography. Keep text short and snappy. Visual: A simple illustration of a tire with an air nozzle connected could be a nice...

I'm looking for an expert in Arduino sensor integration and Google Sheets expertise. The primary task entails integrating unspecified Arduino sensors with a Google Spreadsheet for data logging. I am looking to have flexibility in terms of update frequency for saving readings into the Google Spreadsheet. Ideal skills for this job include: - Proficiency in Arduino operations and integration - Working knowledge with Google API and Google Sheets - Experience in Sensor Data Logging I am open to discussing the approach that you may feel is most effective for the requirements. Interested freelancers must showcase their past work, experience, and provide detailed project proposals for consideration.

I'm seeking a proficient developer with experience in both Arduino and Raspberry PI, to aid in porting my MIDI hardware controller with a touch screen interface to raspberry PI. The successful candidate will be experienced in Arduino, Python and Python UI, and have knowledge of PI input and output hardware IO messaging. Please see Arduino project here at GITHUB that you'll be effectively replicating on the PI: And video of later model I made so you can understand better what it is doing: I will work with you to port this over, with input of UI design (yes this visual look will be vague to start with, so we can orbit around and find the more ergonomic design - so there will

I'm in need of a professional designer to create a minimalist, mobile-first, and responsive website design for a financial tool. The design will be for a web-based tool that focuses on budgeting and loan calculation features. Additionally, it would include an information form (stepper). The ideal freelancer should be experienced in creating efficient UI/UX designs, preferably with understanding of financial tools. Proficiency in Figma or similar tools is also essential. This is an exciting project for any designer who appreciates minimalism and wants to help create a straightforward and user-friendly tool.

...experienced MATLAB/Simulink expert to assist with the calibration of Arduino/Raspberry Pi using the C2000 microcontroller over CAN Bus. Key Responsibilities: - Calibrate Arduino/Raspberry Pi with C2000 microcontroller - Develop MATLAB/Simulink models for project The primary intent behind the calibration is to ensure smooth data communication between the devices. Therefore, proficiency in handling C2000 microcontroller and Arduino/Raspberry Pi is crucial along with extensive hands-on experience with MATLAB/Simulink. Performance Criteria: A critical determinant of success in this role will be the capability to design and implement solutions with real-time execution. Ideal Candidate: The ideal candidate will have experience with Arduino/Raspberry P...

As part of the project, I'm looking to enhance the security of my ESP32 setup. My Mark for Success includes: - Converting HTTP requests into HTTPS - Implementing SSL/TLS encryption methods for secure communication Here are the details about the current setup and project specifications: - The ESP32 is currently programmed using Arduino IDE. I AM USING HTTP REQUEST AND NEED TO SEND OUT HTTPS REQUEST INSTEAD Skills and Experience needed: - Proficiency in Arduino IDE - Understanding of ESP32 - Experience in enabling secure communications(HTTP to HTTPS) - Knowledge in implementing SSL/TLS encryption I would LIKE NOT TO USE CA CERTIFICATES SINCE IT EXPIRES, I would like to use some other method

I'm seeking highly skilled call centers located within the Eastern Standard Time zone to manage the transfer of specific MVA (Motor Vehicle Accident) calls. This initiative is integral to my business operations. Requirements: - Experienced agents with an advanced understanding of customer service principles and practices. - Skilled in gathering information for the correct MVA calls. Specifically, the type of vehicles involved in the accidents should be clearly identified and prioritized. - Call Centers Must have their own Jornaya Leads with Opt-in sites I'm looking forward to partnering with a top-tier call center focused on quality and efficiency. Kindly bid with relevant experience in managing MVA transfers

I'm seeking an expert with experience in Arduino and servo motors who can create a system for adjusting a camera angle. The servo motor needs to be able to rotate the camera to both specific angles and continuous rotation. The control of the servo motor's movement should be possible through a software interface. This will involve not just the physical setup but also programming the Arduino for interface control. Ideal Skills: - Hardware knowledge with servo motors - Proficiency in Arduino programming - Experience in software interface design - Familiarity with camera systems is a plus.

...who can create a unique GPS enabled anchoring system. I'm interested in an electronics kit that can operate as a GPS anchor, primarily for tracking fishing spots but with a universal design which can integrate with any electrical trolling motor. Key features: - GPS tracking: Accurate positioning within a 3-meter radius on the marine surface. Experience with GPS technology is vital. - Anchor hold: Once the desired location is set on the GPS, it should hold the boat in that position. - Compatibility: Flexibility to integrate with any electrical trolling motor ensures this device caters to a wide range of sea faring vessels. Range: The product should have a decent tracking range, sufficient for typical boat outings. Battery life: - The electronics kit should run up...

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

I am looking for a proficient Arduino programmer that will develop efficient code for a self-service car wash system, operating on an Arduino Giga R1. Key Functions: - Implementation of a bancnote counting and sorting mechanism with model NV9USB+ - Timing and scheduling of car wash operations - Creating an internal menu to set pricing - the principle of functioning is that the arduino is the main computer, conected to - a main dispplay monochrome - nv9usb+ bancnote reader - 7 imput buttons with led that light when is pushed - output of 8 +4 relay module made by arduino - when a button is pressed a combination of relay is on The selected freelancer should have deep knowledge about programming, specifically for Arduino Mega as well as a good understandin...

...an adept plastic engineer with solid experience in working with Arduino interfaces to take part in my project. This entails programming an Arduino module to perform device control and interaction activities, specifically, singling out LED lights. Key responsibilities: - Develop an Arduino program that can establish control over LED Lights. - Implement effective LED light interaction strategies using Arduino. - Constantly review, test, and debug Arduino code to achieve superior functionality. Ideal contractor must have: - Proficiency in Arduino programming - Rich experience in controlling devices like LED lights. - Problem-solving and debugging skills - In-depth understanding of device interaction via Arduino This project...

I'm in need of an experienced electrical engineer who can design a small circuit board (less than 2 inches). The board must utilize the Bluetooth audio master module I've sourced and support some basic Bluetooth pairing functions. Key Features: - Audio playback (via bluetooth module feasycom BT955) - Power manag...be set to HFP mode and support in/out audio from bluetooth headphones back to a wired in/out connection on the board. The professional I'm seeking ideally has experience with circuit board design involving Bluetooth technology and LCD displays. Being detail-orientated and adept at compact designs is also crucial given the small size requirement. Let's bring this Bluetooth audio project to life! Happy to use an arduino chip on the custom board i...

...specifically designed for motor claims lead generation. The cornerstone feature of this site will be an online claim form that allows users to provide information about their claims effortlessly. Key Features Required: • Online Claim Form: This form should enable users to upload various types of documents, including photos of the incurred damage, their insurance policy document, and other relevant files such as health reports. • Reserve A Call-back Appointment: In addition to claim form submission, users should have the ability to reserve a call-back appointment for further assistance or queries about their claims. Your expertise in web development, UI/UX design for intuitive user navigation, and knowledge of lead generation strategies are crucial for this proj...

I'm seeking a proficient mobile app developer well-versed in developing for both iOS and Android platforms. This app is intended to work cooperatively with Arduino Uno and a soil moisture sensor for plant care optimization. Also, we had this problem where we cannot identify the wifi module in the "boards manager" of the Arduino IDE app. Need help on that also. Ideal Skills: - Extensive knowledge in Arduino Uno and Bluetooth communication - Experience in app development for the iOS and Android platform - Familiarity with handling soil moisture sensors Requirements: - Successful communication with Arduino Uno exclusively via Bluetooth module (HC-06)/wifi module (esp8266). -Able to produce an in depth explanation on the step by step process of how ...

Being an expert in industrial automation, my project's objective is upgrading our existing ...collaborate with a talented CODESYS developer who is deeply skilled in a variety of areas, especially: - PLC Programming. - HMI Development. Essential Attributes: - Familiarity with real-time operating systems, and a knack for working effectively with safety protocols. - Proven track record in enhancing system performance and efficiency by leveraging these skills. - Servodrive and motor programming and setting This project will require in-depth technical knowledge, a problem-solving attitude, and a collaborative spirit. Almost as important, I appreciate good communication skills and a thorough approach to documenting your work. If you resonate with these requirements, I'...

...skilled electronics engineer well-versed in Arduino nano, specifically working with accelerometer or gyroscope technologies. Your skills and experiences will be crucial in creating a captivating, efficient fitness tracking wearable device, which will connect via BLE with Android mobiles, due to Android being our primary target platform. Your tasks will involve: - Developing an Arduino nano-based wearable device. - Incorporating accelerometer technologies for tracking steps and distance. Ideal skills: - Strong proficiency in BLE programming - Previous experience in similar wearable device development - Extensive knowledge about accelerometer or gyroscope - A deep understanding of interfacing with Android platform. Feel confident that this project allows ample...

...have an Arduino Mega with an attached LCD display alongside an ESP32 that handles incoming and outgoing cash payments (input and output pulses). The ESP32 is equipped with 5 input pins and 2 output pins, each with corresponding functionalities. Specifically, the task involves: - The integration of functions such as the LCD display is already functioning, payment handling needs to be implemented (this was done from the esp32 to the mega via Serial), and the input/output pin functionality from the two devices must stay as is - The payment handling function will be via cash. It's important to note that the LCD display information is already functioning perfectly - it just needs to be combined with the other elements. Ideal Skills Needed: - Proficiency in working with ...

...seeking an experienced Arduino programmer to create a sketch for controlling stepper motors without any libraries. The three core functions required within the sketch include control for motor speed, direction, and position. Despite no specific constraints for the stepper motors' speed, direction, or position control, the ideal candidate would offer guidance in achieving optimal functionality out of these parameters. Your expertise should allow for a clean, readable and maintainable code, as we intend to apply Clean Code Principles. Familiarity with stepper motors and Arduino hardware is a must. I have writen 2 versions of the code already and need help further developing it. Key Responsibilities: - Help developing an Arduino sk...

I aim to transform my Cameo CLPFLAT1RGB10IR into a visual metronome that I could control via a BOSS FS-5U footswitch. The goal is to manipulate the flashing speed of the Cameo light with each tap on the footswitch, setting an accurate pace in a white light display. Key Requirements: - Configure the footswitc...- Hardware controller is desired but specific device is undefined. - Ensure light flashes in white color. Freelancers with experience in: - Hardware and software interfacing - Device configurations via both wire and code - Creating a user-friendly interface - Not restricted but proficiency in works involving Arduino, Raspberry Pi, and MIDI controller would be useful. Your expertise is needed to transform a conventional light into a unique visual device that supports m...

We are currently in search of a skilled and motivated freelance PLC Programmer to undertake a critical project for our advanced water tank management system. Required turnaround time of 24hrs preferred. This project involves the development and implementation of ladder logic for controlling two tanks equipped with digitally controlled ball valves and variable resistor water level sensors. The primary objective is to maintain specific water levels within each tank, dictated via Modbus messages, while compensating for continuous water outflow. Project Details System Components: Two water tanks, each regulated by digitally controlled ball valves. Variable resistor water level sensors for real-time water level monitoring. A central Siemens Step7 PLC unit that receives w...

...website is targeted to senior citizens, a demographic that requires a well-thought-out design for easy understanding and navigation. Key service requested: - Website design - wireframe Specific project details: - The design should be user-friendly, considering the specific needs and preferences of senior citizens. - The user experience must be smooth, with well-organized sections and clear, simple navigation. - The design should facilitate readability with suitable fonts, colors, and magnification features. - Incorporate accessibility features to ensure the website is usable for those with vision or motor challenges. Ideal Candidate: - Should have expertise in UI/UX design, specifically for blogs or similar platforms. - Experience in designing for the elderly or less te...

We need an embedded systems engineer that has experience with high precision motor and sensor control. The engineer should have profound knowledge and experience with various electronic components in the market, because we need long lasting components for our project. We also need our system to be controlled with a mobile app. More details will be shared via chat. People with following skills bid on this project - 1) High precision motor and sensor control for dot matrix printing. 2) PCB design. 3) Embedded system app design.

I'm currently looking for a skilled Arduino engineer to assist in using an Arduino Nano, hx711, and ssd1309 screen to display readings from a load cell. Key Details: - All necessary components including the Arduino Nano, hx711 module, ssd1309 screen, and the load cell have been procured and are available for the project. - The desired unit of measurement for displaying the load cell readings is in Kilograms (kg). - The hardware setup will primarily be used in indoor conditions. Ideal Skills and Experience: - Expertise in Arduino programming and interfacing. - Previous experience working with HX711 load cell module and ssd1309 OLED screens. - Strong understanding of units measurements, specifically kilograms. Please place your bid considering the...

Please Sign Up or Login to see details.

...and well-defined requirements for an Arduino project. I'm looking for a skilled coder who can successfully use an ultrasonic distance meter for the purpose of measuring long jumps. Key Tasks: • Implement and configure an ultrasonic distance meter to accurately measure the length of long jumps. • Establish efficient data flow from the Arduino hardware components to an LCD screen. •Display top 3 jump on the display Skill and Experience: • Proficient in Arduino coding • Experience in sensor integration, specifically with ultrasonic distance meters • Able to develop clear LCD screen displays for data output The project is particularly interesting for freelancers with a knack for sports technology and who love imple...

I'm looking for an experienced ESP-IDF firmware developer who can help enhance the functionality of my ESP32 IoT device. Task: Port the Firebase library for Arduino for ESP-IDF V5.1.2 in C language. Library Link: The library should support only the Realtime database functionality only. This role is ideal for someone with experience in ESP-IDF, ESP32, and IoT protocols, specifically Firebase’s Realtime Database Library. Dedicated, meticulous individuals with a knack for problem-solving are most desired for this project.

...particular, to deal with the failure of an electric locking mechanism that switches, using a motor, between a locked state in which the power supply plug cannot be removed from the inlet for the power supply plug and an unlocked state in which the power supply plug can be removed from the inlet for the power supply plug. One of the problems when the electric lock mechanism that switches between the locked and unlocked states using the motor fails is that if the electric lock mechanism fails in the locked state, the power supply plug may not be removed from the inlet. To solve this problem, in an electric lock mechanism that switches between a locked state and an unlocked state by moving a lock bar with a motor, an operating member such as a wire provided inside of a...

Please Sign Up or Login to see details.

Looking for a program to control machine with rotary encoder and HMI 1. Press button on screen Motor starts 2. Encoder position display on HMI 3. Program and screen to have 12 outputs that hmi has input start stop times in degrees. All outputs can be turned on and off separately if not required 4. Press stop and stops at point Omron cp1h x40 Omron hmi Omron encoder

I'm in need of a seasoned developer who can create a simple application in Android Studio, preferably in Kotlin or Java, with a straightforward GUI consisting of just two buttons: Button1 = "ON" Button2 = "OFF" The application should use a USB OTG cable to connect an Android tablet with version 11 to any Arduino device. When the user presses Button1, the application should send the string "ON" through the USB serial port, and if Button2 is pressed, it should send the string "OFF" via USB. I'm interested in one-way communication only, and the application should be as simple as possible.