Microcontroller Design Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $400 - Posted
Stepper Controller/Driver I need someone to design a Stepper Motor Controller/Driver with the followings: System should be able to set the steps forward/reverse (CW/CCW) and pause time between the specified steps (example: go forward 200 steps, pause 1 second, repeat the cycle until stopped, or set to go around one full cycle stop 2 seconds and repeat the cycle) 1- system will be 6 to 12volt system and will use one power supply 2- Push buttons for manual control to set the steps, pause time and speed 3- Must have LCD display or 7 segment display so you can view what value you are inputting for speed, steps and pause time. 4- IR remote control – to start/stop and be able to move the values up or down for speed/steps/pause 5- can handle stepper motors up to 2000 mA (2amps) 6- this is a Stand Alone One Axis stepper motor controller/driver (One motor will be connected). I will need: Circuit Designs (all layers) Related programming (firmware) PCB Component list Any other related information
Skills: Microcontroller Design Microcontroller Programming
Hourly - Intermediate ($$) - Est. Time: 3 to 6 months, 10-30 hrs/week - Posted
Looking for an electrical engineer with a passion for photovoltaics. The goal is to develop flexible PV power bricks which can be used to power maker and professional projects around the world. Initial goal is a 25 W charger for LiFePo4 batteries to power small systems, e.g. Raspberry Pi based. The results of this work will be Open Hardware. That means that you can use the stuff you get payed for here later on for other purposes (like open source software). Knowledge of: - PCB design experience and creation of libraries with KiCAD - microcontrollers (e.g. MSP430 or Cypress PSoC) - basics of photovoltaic systems - battery chargers for LiFePo4 etc. - DC/DC converter design - Raspberry Pi - maker scene, especially in places in Africa, Asia or South America; wherever there is a lot of sun and no reliable grid (where people could benefit most from these products) Location: - anywhere worldwide
Skills: Microcontroller Design Analog Electronics Digital Electronics Electronic Design
Fixed-Price - Expert ($$$) - Est. Budget: $400 - Posted
we require to design 4 layer PCB design with more then 100 components placed in 4*4cm square PCB. We do require 3D model for this. Designing of PCB in altium is compulsory. At the end require 3D models, gerber files, drill files. We are looking for experience freelancer with minimum of 4 years of experience in PCB designing. More details will be given to selected freelancer ....
Skills: Microcontroller Design 3D Design Altium Designer aMember