Control de relés Arduino OLED
Busco un sketch de Arduino que me permita manejar cinco o más relés desde botones físicos y mostrar el estado de cada canal en un display OLED. Qué necesito exa...
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Raspberry Pi IoT Remote Monitoring
I’m building an IoT solution around a Raspberry Pi that can stream real-time data from a small lab here in Jaipur to a web or mobile dashboard for secure remote...
Read moreAutomated Delayed Noise Replayer
I need a self-contained system that can sit outdoors, listen specifically for my neighbours’ voices or shouting, and—only when they hit 55 dB or above—capture t...
Read moreKa-Band Audio Down-Conversion
I have a collection of recorded Ka-band satellite captures stored in a proprietary “K” format. Each file contains the raw RF payload—audio plus embedded data—th...
Read moreSystème de suivi poulailler intelligent
Je souhaite mettre en place un système complet de gestion et de suivi pour mon poulailler. L’objectif est de connaître en temps réel la santé de mes poules, de...
Read moreAI-Powered VHF/UHF Receiver Upgrade
I need help transforming an off-the-shelf receiver—whichever model you feel is most practical—into a unit that can: • listen to the entire 136 – 175 MHz VHF ran...
Read moreFix ESP32 Compile Error
My sketch for the ESP32 refuses to compile, throwing the message: error: invalid operands of types 'int*' and 'int' to binary 'operator/' I need a fresh set of...
Read moreInvert Sensor Logic & Optimize Code
I’m working on an Arduino Portenta C33 setup that uses an infrared sensor whose output sits HIGH when idle and drops LOW when it detects an object. Your first t...
Read moreStop Sign Detection for Autonomous JetRacer
Freelance Project – Stop Sign Detection on Waveshare JetRacer (Jetson Nano) I’m working on a hands-on autonomous driving project and already have a Waveshare Je...
Read moreJetson Nano CSI-2 Driver Development for Custom MIPI Thermal Camera (No I2C)
We are integrating a custom thermal camera module (A640) with an NVIDIA Jetson Nano via MIPI CSI-2 interface. The camera: Outputs MIPI CSI-2 (4 lanes) continuou...
Read moreArduino Cup-Flipping Robot Prototype
I’m building a small, self-contained Arduino gadget that can roll up to a standard cup, sense when it’s in position, and flip the cup over—all without any human...
Read moreAndroid Voltage Monitor via SIM900A -- 2
Saya membutuhkan aplikasi Android untuk memantau empat sensor tegangan yang terhubung ke Arduino melalui modul SIM900A. Aplikasi harus: • Menampilkan pembacaan...
Read moreRaspberry Pi Solenoid Trigger Script -- 3
I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming fro...
Read moreRaspberry Pi Solenoid Trigger Script -- 4
I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming fro...
Read moreBurst-Transfer DMA Firmware
I need compact, well-documented DMA firmware whose sole job is efficient data transfer. The code must be tuned for burst transfers and interface cleanly with an...
Read moreRaspberry Pi IoT Hub Development
I'm seeking a skilled Raspberry Pi developer to create an IoT sensor hub. The primary sensor will be a pressure sensor. Key requirements: - Set up Raspberry Pi...
Read moreSTB UART Mapping from Dump
I’m holding a 64 MB flash dump (.CE0 image) taken from an STI7*** set-top-box and need a concise reverse-engineering pass on its firmware. With the original fac...
Read moreManual AWR to Altium Export
I already have a fully-routed PCB inside the Microwave Office AWR Design Environment (20-component BOM, no further edits required) and I need the whole project...
Read more3D Printer MCU Firmware Transfer
My BIGTREETECH BTT Octopus Pro V1.0.1 (H723) controller lost its main STM32H723 IC to an electrical short. I will be ordering an identical replacement chip; wha...
Read morePrecision Motor-Based Medical Device Development - 23/03/2026 06:40 EDT
Job Requirement – Precision Motor-Based Medical Device Development We are seeking a freelancer or product development expert to help bring a medical-related dev...
Read moreESP32 Gateway Development in Bangalore
I am looking for an experienced ESP32 developer based in Bangalore to develop a small webserver on an ESP32 gateway device. The ESP32 gateway includes a LoRa SX...
Read moreMechatronics/Robotics Freelancer Needed – Prototype Development for AI-Powered Automated Cooking Machine (Hardware + Firmware)
We are an early-stage hardware startup developing an AI-powered automated home cooking machine. The device prepares meals from scratch using a robotic arm, auto...
Read moreArduino Fragrance Dispenser Prototype
I need a rough-and-ready fragrance dispenser that lets me showcase three separate scents from one compact unit (about 30 × 20 × 15 cm, but feel free to tweak di...
Read moreESP32-S3 High-Frequency Tachometer
Help me solve something multiple freelancers havent been able to. I need a rock solid circuit that reads a pulse from a wire wrapped around a spark plug wire of...
Read moreEquine sensor for horses
I am currently looking for a manufacturing partner to develop a girth-mounted equine performance sensor as part of a product The goal of this device is to monit...
Read moreSTM32 SPI Firmware Development
I have a custom board built around an STMicroelectronics MCU and I need a clean, well-structured C firmware that turns the chip into an I2CSPI host. The main jo...
Read moreLong-Range Alert Wristband System -- 2
I’m developing a simple, rugged communication setup made of two parts: a master tablet and multiple wrist-worn receivers. The tablet must house a 5" × 8" screen...
Read moreAllwinner Custom Android TV Firmware
The goal is to turn the Allwinner T527 board into a fully functional Android TV device built from source. The core work covers the complete BSP bring-up, kernel...
Read moreHardware Engineer / PCB Designer — 30 Min Paid Feedback Session
I’m the founder of PartPilot, a tool that automates BOM validation for hardware engineers. Right now engineers spend hours manually checking component availabil...
Read moreMTK 6761 ROM USA Conversion qin f21 pro
I have a Chinese phone running an MTK 6761 chipset and need its firmware rebuilt so it works flawlessly in the United States. The core of the job is two-fold: 1...
Read moreCompact Battery-Powered Sensor Prototype
The goal of this short engagement is to turn my concept for a simple smart device into a working proof-of-concept. I need a tiny, battery-powered unit that sens...
Read morePotato Equipment Shaft Monitor
I need a practical, low-cost electronic shaft monitor for my potato equipment that will immediately warn the operator whenever a driven shaft stops or drops bel...
Read moreMicrocontroller Solar Panel Wiper
I need a compact control system that keeps my solar panels clean with an automated wiping mechanism. The microcontroller should drive a motor-based wiper bar, r...
Read moreArduino Drink Sampler Kiosk Prototype
I need an experienced Arduino / embedded systems freelancer to build a working physical prototype of an automated beverage sampling kiosk for gas stations / con...
Read moreSeven-Segment Bluetooth Scoreboard Build
The project is a compact yet eye-catching digital scoreboard that combines classic seven-segment numerals with modern Bluetooth audio. It must show game scores...
Read moreComprehensive Drone Development with Arduino
I'm developing a drone and need an experienced Arduino engineer to help with: Flight Control System: - Autonomous navigation - Manual control - Stability and al...
Read moreHardware Engineer / PCB Designer — 30 Min Paid Feedback Session
I’m the founder of PartPilot, a tool that automates BOM validation for hardware engineers. Right now engineers spend hours manually checking component availabil...
Read moreAMI BIOS Dump for Axiomtek SBC84832
I have an Axiomtek SBC84832 industrial SBC running an AMI (Aptio) BIOS and I need a clean, ready-to-flash dump that matches the exact model and board revision....
Read moreRaspberry Pi Robotics Educational Tool
I’m building a Raspberry Pi-based educational tool focused on robotics projects and need an experienced programmer who can turn my concept into a working protot...
Read moreRaspberry Pi Robotics Programming
I’m building a Raspberry Pi-based educational tool focused on robotics projects and need an experienced programmer who can turn my concept into a working protot...
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