Arduino Jobs

I want to turn a concept for a pneumatic actuator into a working prototype that can grip or clamp objects with repeatable, controllable force. The job spans mechanical design, pneumatic circuit sizing, and the embedded-software layer that will let me test different grip profiles through a simple interface. Scope • Translate my sketches and performance targets into detailed CAD ready for rapid manufacture (CNC, SLA or FDM are all fine). • Select off-the-shelf valves, fittings and sensors, then size the cylinder and air supply so the gripper reaches its force and stroke goals. • Develop quick-change firmware or a ROS/Arduino node that lets me adjust pressure, speed and dwell time from a laptop while logging position/force data. • Assemble and bench-test the unit,...

I need an experienced APsystems solar installer or technician to remotely diagnose and configure the grid protection profile of an APsystems EZHI hybrid inverter. System details: - Device: APsystems EZHI - Location: Mogadishu, Somalia - Grid frequency: stable 50 Hz - Grid voltage range: approximately 238–255.5 V - Current setting criteria shown by the device: “default for 50Hz grid” - Current problem: frequent “AC abnormal” disconnections - grid profile previously worked more reliably Required work: 1. Verify the currently active grid profile and all AC protection parameters. 2. Confirm whether the South Africa / NRS 097 grid profile is supported by this EZHI firmware. 3. Apply the complete approved South Africa profile, if technically suitable. 4. Do not...

I need a wrist-worn prototype that continuously samples ambient radiation and instantly warns the wearer whenever levels reach a hazardous threshold. The core goal is real-time safety, so reliability and fast response are critical. Here is what I expect at hand-off: • A fully assembled, battery-powered watch-style unit that can be worn and tested in the field • Firmware and source files that drive the sensor, handle threshold logic, and trigger the alert (sound, vibration, or LED—whichever best fits the space and power envelope) • Complete schematic, PCB layout, and bill of materials so the design can be reproduced • Brief usage guide explaining calibration, normal operation, and how to adjust alarm levels I’m open to your preferred development tools...

This is a hardware development project. I require a fully functional working prototype, not a simulation, research paper, or theoretical design. The final deliverable must demonstrate ultrasonic TOF measurement on small non-ferrous metal components through a working prototype and demonstration video. I need help taking a lab-bench concept for measuring ultrasonic wave velocity and turning it into a rugged, handheld instrument that works reliably on Platinum, Silver, Nickel, and brass samples. The core tasks include designing the full analog front-end (pulser/receiver, low-noise pre-amp, gain control, anti-alias filters), selecting and driving the piezo transducers, and implementing a precise time-of-flight algorithm in an embedded platform. I am open to ARM, DSP, or FPGA solutions as ...

I have a 16-channel relay board that must be driven by an Arduino. Each of the sixteen micro-switch inputs will correspond to one—and only one—relay output. When a switch is pressed the matching relay should energise for a fixed pulse of 2-3 seconds, then drop out automatically; there is no need for the user to alter that timing. Here is what I need from you: • Clean, well-commented Arduino sketch that reads the 16 discrete inputs, debounces the switches, and fires the appropriate relay for the required duration. • Pin-mapping and a simple wiring diagram so I can connect everything without guesswork (I will be using a common 16-relay module that accepts active-LOW signals, but please keep the code flexible enough to invert logic if needed). • Guidance on a...

I need an experienced embedded hardware / PCB engineer to design a production-ready STM32-based main controller PCB for a therapeutic massage/spine bed system. This is a build-to-spec project. I already have a detailed engineering handoff package including system architecture, old PCB references, estimated current budget, pin maps, connector notes, BOM guidance, firmware handoff notes, layout requirements, and test plans. The freelancer’s main responsibility is hardware design and manufacturing outputs: schematic, PCB layout, Gerbers, BOM, assembly files, and firmware-ready hardware documentation. Firmware will be developed separately using AI/Codex/Claude from existing working ESP32 firmware. I will burn the firmware once the board is ready. The PCB must support first firmware flash...

Raspberry Pi 5 CCTV RTSP Viewer with GPIO Alarm Trigger We require a developer to create a reliable Raspberry Pi application that automatically displays a live CCTV camera stream and responds to GPIO input triggers. Hardware Raspberry Pi 5 – 8GB Raspberry Pi DAC Pro HDMI-connected display CCTV camera providing an RTSP stream External dry-contact or relay inputs External device controlled by a GPIO output Normal Operation When the Raspberry Pi is powered on, the system must automatically: Boot the Raspberry Pi operating system. Launch the programmed application. Open the supplied CCTV RTSP stream. Display the RTSP stream in full-screen mode. Continue displaying the stream until a GPIO alarm input is activated. The CCTV camera IP address, username, password and RTSP stream setting...

I need a working human-computer interface that can both pick up and broadcast data over Bluetooth at the highest speed the protocol allows. The data flowing through it will be full-rate cellular communications data rather than simple audio or text, so throughput and low latency are critical. On the input side the unit will read Qi energy and Acu-meridian energy via harness-style skin contacts. Those raw sensor signals have to be conditioned, digitised and pushed straight to a tablet over Bluetooth without noticeable lag. In the opposite direction the tablet will be able to transmit control or stimulation patterns back to the interface just as quickly. The job covers hardware design, embedded firmware and a basic demo app for a tablet or computer: • Hardware: schematic, PCB layout an...

I have already prepared the full CoppeliaSim scene (.ttt) with the mobile platform, vision sensor and the coloured paths laid out. What I still need is the Python side: a clean, well-commented script that connects through the CoppeliaSim remote API, reads the vision stream, identifies the target colours and drives the robot along each line using a PID controller. Primary task The robot’s job is straightforward line following. Because the scene contains several coloured tracks, it must be able to hop from one to another whenever the target colour changes, staying centred on whichever line it is tracking. Colours to detect • red • green

I’m looking for someone who can turn a straightforward brief into a polished little desktop calculator. Python 3 and Tkinter are both must-haves because I want the finished program to run out-of-the-box on any standard installation. The look and feel should follow a classic pocket-calculator layout—nothing flashy—so users immediately recognise the keypad arrangement. Core arithmetic (add, subtract, multiply, divide) is required, and I’d like one extra: a square-root button alongside the usual operators. The buttons must also respond to keyboard input; if a user presses “7” on the keyboard, the “7” key on the interface should activate and the value should register in the display. Visual or audio effects aren’t necessary. Please build ...

I need help configuring a Hikrobot camera using python whenever it flags a vehicle incorrectly, drives an external alarm output. In practice that means: • Monitoring the confidence/result coming from the camera (SDK, ONVIF events or RTSP overlay—whatever is most reliable) and deciding when a detection should be considered “wrong”. • As soon as a wrong detection is confirmed, toggling the camera’s I/O port (or a small companion relay module if the onboard I/O proves too limited) to fire the alarm signal. A concise set-up guide and any scripts, firmware tweaks or parameter files you create must be supplied so I can replicate the installation on additional units. Please include short test footage or logs proving that the alarm is triggered only on false...

I need a compact Bluetooth mouse engineered from the ground up with four physical buttons, a smooth scroll wheel, and a USB-C port for both charging and optional wired use. Beyond the standard right- and left-click, the two extra buttons have to ship pre-mapped to volume control (up / down or mute / un-mute) yet remain fully re-programmable through companion software or firmware so users can assign any shortcut they like later on. The build should feel as solid as today’s premium portable mice, keep latency low, and work cross-platform without separate drivers. I’m open to Nordic, Cypress, or similar Bluetooth LE chipsets as long as you hit excellent battery life and achieve seamless reconnection after wake-up. USB-C power management and over-the-air firmware update capability...

Our ESP32-based prototype uses the MSME INNP441 digital mic, and during live audio streaming it introduces jitter and a screeching interference noise—even though the board sits in a quiet lab. I have already updated the firmware, swapped in fresh hardware, and tweaked every software register I could reach, yet the distortion persists. I’m looking for someone who can dive into the existing C/C++ (Arduino-style) code, analyse the I²S configuration and clocking, and track down whatever is corrupting the audio path. If a schematic or logic-analyser trace is helpful, I can supply both. Any fix should leave us with clean, stable voice capture that we can push straight to our streaming stack. Because this is part of our in-house tech, I will provide the full repository only a...

I’m building a compact pan-tilt head that can be driven remotely with a small camera module and a laser pointer ride on top of it. The primary goal is reliable pan-tilt motion and foundation for future development. Here’s what I need from you: • A motorized pan and tilt mechanism sized for a lightweight camera board and laser diode. • Control electronics (Arduino, Raspberry Pi, or similar—whatever you prefer) with firmware that exposes over serial communication. • A simple desktop or mobile interface so I can jog the rig manually, start/stop tracking, and toggle the laser. • Assembly instructions, wiring diagrams, and commented source code so I can reproduce the build. Acceptance test: demonstrate adequate homing and motion control. If you h...

I need a Raspberry Pi programmed as a vending machine controller using Python. The machine will interface with a coin acceptor, card reader, and product dispenser, and will dispense non-food items. Key Requirements: - Integration with coin acceptor and card reader (nayax) - Control of product dispenser - Python programming Ideal Skills and Experience: - Experience with Raspberry Pi - Proficiency in Python - Familiarity with vending machine components and integration -Will use a MDB Pi Hat from qibixx

I aim to develop a solution that will facilitate data communication between an Arduino UNO and a SIM7600E using AT+COMMAND. The primary data in focus will be temperature sensor readings. Key Responsibilities: - Setting up a reliable connection between Arduino UNO and SIM7600E - Implement AT+COMMAND for effective communication - Design a protocol for transmitting temperature sensor data Ideal Skills: - Solid knowledge of Arduino - Proficiency in handling SIM7600E - Experience in implementing AT+COMMAND - Understanding of sensor data transmissions. Please ensure you can efficiently deliver on these requirements, and provide the mentioned sensor data communication before placing your bid.

Je souhaite concevoir puis réaliser un système d’irrigation intelligent, connecté en IoT, dédié aux cultures de céréales. L’objectif est de réguler l’apport en eau par irrigation de surface en fonction de données temps-réel recueillies par des capteurs d’humidité du sol et de température. Concrètement, il me faut : • l’architecture complète (choix du microcontrôleur – Arduino, ESP32 ou équivalent –, réseau LoRa/Wi-Fi, passerelle, cloud ou serveur local), • le schéma de câblage incluant électrovannes ou pompes pour l’irrigation de surface, • le code embarqué qui lit les capteur...

Briefing do Projeto Estamos procurando um profissional para desenvolver um projeto de um Sistema Ecológico de Reaproveitamento de Água para Hortas Domésticas. O projeto é um protótipo simples, desenvolvido para uma pequena horta doméstica, sem necessidade de atender grandes áreas ou implementar funcionalidades complexas. Objetivo Desenvolver um sistema automatizado utilizando ESP32 que monitore a umidade do solo e realize a irrigação utilizando água da chuva armazenada em um reservatório, promovendo economia de água e praticidade para o usuário. Funcionalidades esperadas - Programação completa do ESP32; - Leitura do sensor de umidade do solo; - Leitura do sensor de nível de...