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Microcontroller Programming Jobs

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Hourly - Est. Time: 3 to 6 months, 30+ hrs/week - Posted
We are working on a medical related device. The core device work is done and has been validated. It operates on a PIC processor and integrates via USB with prototype software on a PC. We need to embed this prototype software into the system and add a touch screen, RFID reader, PDF report generations and additional storage memory (for reports). We are still trying to figure out the best architecture for this. There are several options. 1. Expand the existing circuit and upgrade the processor to handle all task. 2. Embed the existing device as is into a new device with a new processor and additional circuitry for touch screen, memory and RFID. The two devices would talk via RS232 or other. The new firmware replicate the prototype software features and functions. 3. Embed the existing device into an off the shelf Linux (or other) based system. Write software for the new device with the user forms and test flow, PDF features, etc. We are looking to balance development...
Fixed-Price - Est. Budget: $ 500 Posted
We have a unit that does an RS485 handshake with another unit. it's very basic and only has to control 6 LED's and instruct the unit that it is connected. We need to understand the RS485 data and create a raspberry pi interface so the the unit handshakes with the raspberry pi and not the other unit. We have test equipment so we can provide you with information as you need it. Once we know what the code is and how to communicate with it, we can build our own PCB that will input to a raspberry pi GPIO rather than LED's. There are 3 further projects once this one is complete. We're keen to find the correct developer for all the elements in the project.
Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
We are in search of individual with expertise in the field of Spirometry and peak flow meters. We need assistance analysis of a product in development.
Hourly - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Background: As you likely already know, to control amount of power a flash puts out, flash duration (and hence light output) is reduced by a thyistor control that quenches the full power flash early for light output less then 100%. Requirement: Need a circuit to be designed (along with PCB design) which will register the flash quench duration (generated by the center pin on a DSLR flash connector) and converts it into a power output that can drive a bank of high speed LEDs. Either using purely discrete components or using an arduino (your choice whatever you think is simplest). If a micro-controller is used, I will need the code as well. The output of the circuit should be able to drive and control intensity (either PWM or otherwise depending on the LED driver driver used) of a bank of LEDs.
Fixed-Price - Est. Budget: $ 100 Posted
Design three types of universal LED bulb driver: 1.) Using minimal component to keep cost down (See "01.jpg" and "02.jpg" attachment ) 2.) Using integrated circuits for higher brighter/Life of LEDs(But cost must be low) 3.) Using some high end technology to keep Quality and life longer(You can also add extra features like light sensing technology and make it energy efficient) Input: 90-260v AC Output: Volts: Universal Amps: Configurable just by replacing transistors or any single component(No need to change design) Note: I do not want any current leakage/wastage (or as minimal as possible)
Hourly - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
i am looking of some onto convert some arduino code to c++ with chinos/rt based OS from arduino code, i also need you to do the opposite. adruino uses atmega chip the chinos/rt uses stm32f100 and the last thing is i need to do help add support for a device to one of the codes. the hardware is a wii nunchuck replacement pcbs made specifically for controlling an electric speed controller.it has been made because current wireless wii nunchucks are unstable and have bad wireless connectivity. the wiiceiver is a pcbs that was deigned to plug in a wireless nunchuck receiver in and output pwm signal for and electric speed controller and servo. i need to make the wiiceiver read the axis and button presses from my nunchuck pcb. but i want my nunchuck pcbs to stay comparable with arduino so i was going to allow support for stm32f103 and them release arduino code to the public. ardunio code: https://github.com/jaustindavid/wiiceiver chibios/rt code: https://github.com/vedderb/nunchuk_mod
Fixed-Price - Est. Budget: $ 500 Posted
Who Are We Looking For? We are seeking an Arduino Developer who is experienced and can work independently. The ideal candidate would be able to work with top-level objectives using an organized and clear methodology, taking part in the processes of planning, technical execution and review. Job will be mostly code development for interfacing with hardware systems. Qualifications: Experience with Arduino programming language Experience with Object-Oriented programming in C++ Experience with git for version control and repositories Ability to read hardware datasheets Strong problem solving skills Able to work in a team setting Work well under limited supervision Ability to multitask and prioritize tasks Clear communication skills Possess strong organization and documentation skills (includes code comments) Responsibilities: Develop, test and debug embedded software on Arduino platforms Manage progress of projects, version control and documentation Provide support for...