Electronics Jobs

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Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
I need an STM32F4 based motion controller designed. It will use gyro scopes, accelerometers and need to communicate via SPI. This board may have a second SMT32 (Probably an F0) to handle some I/O. The board must be designed to work is a very noisy RF and electrical environment.
Skills: Electronic Design Hardware Prototyping
Fixed-Price - Intermediate ($$) - Est. Budget: $500 - Posted
I have an electret microphone (CUI Inc. CMA-6542TF-K) with a basic envelope detector circuit (see attached image) feeding into the ADC of the Cortex M0 (ATSAMD20J18). I require someone to write code to sample the audio input using the onboard ADC (AIN0) and output an A-weighted sound pressure level (dBa) at predefined intervals. These individual dBa outputs will then be average to give a mean reading over 5-minutes. The successful applicant should have relevant skills in audio signal processing and programming.
Skills: Analog Electronics Computer Skills Electronics Microcontroller Programming
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
Looking for a mathematician with experience in developing models to prove a concept for a novel supercapacitor. Should be well-versed in fractal geometry, microelectronic systems, electrical engineering, and alternative energy. Must speak and write in excellent English.
Skills: Electronics 3D Modeling AutoCAD Computer-Aided Design
Fixed-Price - Expert ($$$) - Est. Budget: $1,500 - Posted
preface Not all documents available in English. Depending on whether we can find a suitable partner, we will translate the documents and provide it. Quick Overview of the project: The task is to design a battery powered solution based on the ESP8266 (ESP-12 E / F). This is about the hardware design. Request to the finished design: - Operating with a 1.5V battery AA (step up converter) - Very energy-saving design (at least 2000 cycles with a battery: press the button, connect to wifi, send a datagram, sleep mode) - Total component cost under 5USD in series production - Debounced button with interrupt which can wake the ESP8266 from the sleep mode - Controllable RGB LED - RoHS and EMC for UL & CE Please provide references of your work! Expected result: - Schematic and pcb layout - Production ready board - Bill of materials - Tested (simulation) design
Skills: Electronic Design PCB Design
Fixed Price Budget - Intermediate ($$) - $5 to $500 - Posted
The project consists of a wireless controller for a group of LED light fixtures. The design must vary color temperature from 2700K to 6500K as well as dim light output. The right freelancer will preferably have some experience with user interfaces, LED lighting, Class 2 driver or power supply design and programming micro controllers. Ideally I would like to continue to work with this freelancer in the future since the product we're developing will need several variations for different markets.
Skills: Electronic Design Circuit Design Microcontroller Programming PCB Design
Fixed Price Budget - Intermediate ($$) - $50 to $400 - Posted
I need someone who (know/can/will): - Arduino-compatible microcontrollers - Design schematics - Design/order PCB - Design/order simple enclosure (for 3D printing) - Solder/assemble couple prototype devices See requirements attached. As part of this project only "Device: wireless temperature sensor (WS)" needs to be designed, developed and prototyped. This is not a production-ready device, this is one of the components for my pet project. In cover letter please give some examples of your work. Photos, links to youtube, anything... Also make sure to answer screening questions. And propose your budget for this project (it could be noticably lower than $400 if you have experience).
Skills: Electronic Design Electrical engineering PCB Design
Fixed-Price - Intermediate ($$) - Est. Budget: $1,500 - Posted
Product focus is on a digital readout of acetone levels present in user breath. Key skills include Electronic Design, Product Design, and Chemical Engineering. ... We are looking for design work that can produce high end electronic and a high end experience for our customers.
  • Number of freelancers needed: 2
Skills: Electronic Design Chemical Engineering Product Design