Microcontroller jobs

A microcontroller refers to a small computer on a single integrated circuit consisting of a CPU, clock, ports and memory. These chips are designed for small or dedicated applications. They are used in engine control systems in cars, medical implants, remote controls, power tools and toys. Your business may need help with designing microcontroller chips. You can find such help in the form of freelancers willing and able to do microcontroller work right here. Simply post your job today to get started! Hire Microcontroller Developers

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    Arduino code 6 days left
    VERIFIED

    To build a lock system based on gender by voice authorization. The lock will open the door if the speaker was female. The voice frequency of male and female will be calculated by IQR method. The system contains Solenoid lock, electrit microphone and LCD. The system will works as follows: 1- LCD screen shows "Say a word" 2- The speaker will say word in microphone 3- LCD screen will show "Processing" 4- While processing, the voice frequency will be calculated. Female frequency= 165 TO 255 Hz , Male frequency = 85 to 180 Hz. 5- If the frequency of speaker didn't overlap between to ranges ( 165 to 180 ) , no need for to perform IQR and the result will show in LCD. If speaker is male the LCD will show " Male, access is denied" and the speaker will have 5 trials . Otherwise LCD will show"Female, access is granted" and the lock will open. 6- In case the speaker voice frequency located between 165 to 180 Hz, IQR should be used. 7- The IQR male is more than 0.07 and for female is equals or less than 0.07. Then the decision will be made. I attached the equipments and circuit and the IQR calculation method and the code for the circuit. The code should work with them and the code is attached in case to make a reference of it. I want the code today or tomorrow. The budget should be between 120$ to 150$

    $134 (Avg Bid)
    $134 Avg Bid
    4 bids

    I need a skilled freelancer or agency in those field below: Arduino,Rpi,STM32, Electronics,PCB,Mecatronics,Robotics,3D product prototyping, CAD

    $53 / hr (Avg Bid)
    $53 / hr Avg Bid
    13 bids

    Basically, we are making a project using Arduino Uno and Gsm sim900A module, LCD Display(LM016L) , IR sensor 1)Instead of typing a fixed password we want to send the password(4 digit) as an OTP to the registered mobile number. 2)There would be a mobile type keypad in which if the user presses the hash button it would send an OTP to the registered mobile number. 3)Now , when we receive the OTP we will type it on the keypad and when it is verified it will switch on a motor(Door). 4)Security feature is that it should allow only one person to enter in one verification. If , more than one enter it should send an alert to the Registered mobile number. WE HAVE ALREADY TYPED THE PROJECT OUT BUT THERE ARE SOME DEBUGGING AND CHANGES WE ARE NOT ABLE TO DO. WE WANT IT RECTIFIED AS MENTIONED ABOVE. This is for our engineering project. WE WANT A PROTEUS SIMULATION TOO OF ALL THE GIVEN SENSORS AND MODULES.(Mandatory for our project) the Proteus extension file to be sent. EXCEPT THE IR SENSOR WE HAVE EVERYTHING SO PLEASE SUGGEST US AN IR SENSOR YOU WOULD BE USING. We'll send you the code soon. :D

    $54 (Avg Bid)
    $54 Avg Bid
    7 bids

    This project involves navigating a vehicle through a minefield by using audio beacons of fixed frequencies located throughout the field. The vehicle will start at a fixed location in the field. The mission is to locate the “next” audio beacon and steer the vehicle toward that beacon while monitoring for the next beacon. The vehicle should continue to search each consecutive beacon until the final beacon is located, indicating the vehicle has exited the minefield. During the journey, the vehicle may not collide with any of the beacons and must steer clear. Vehicle Details: The vehicle consists of an aluminum chassis with three wheels (one front center wheel, two rear wheels). Each rear wheel has a dedicated DC motor used to motivate each wheel independently. Both DC motors are connected to a PWM motor driver unit that controls the RPM of each motor independently based on a 2 PWM signals. The details of the PWM motor driver are included in the appendix. Microcontroller: Teensy 3.2 Real Time processor: This microcontroller will interface the PWM motor drivers on the vehicle and the microphone sensor (and any other sensor you may include). Plan to power the vehicle separately from the microcontroller. A four bank AA battery pack is sufficient for the vehicle, while a separate power source may be used for the controller. Do not power the motors through the microcontroller; it is not capable of providing sufficient current. Battery packs may be purchased from [url removed, login to view] or adafruit.com. Sensor Details: The microphone/amplifier assembly is described below. [url removed, login to view] Beacon Information: Each beacon is a piezo buzzer tuned to a particular frequency. Details of the buzzer are below: [url removed, login to view] Rules: 1. You may use preassembled libraries for PWM signal generation and audio processing. 2. One group will be tested at a time. The vehicle will be placed at the starting point, and the beacons will be turned on. There should be a “Go” button on the vehicle to start the journey to the finish line as well as a visual indication (LED) that the journey has ended

    $571 (Avg Bid)
    $571 Avg Bid
    6 bids

    We have a custom board similar to STM32L476 Discovery Kit IoT, which already has Amazon FreeRTOS ready to be used. The original board by ST uses a WiFi module ISM43362 by Iventek connected to STM32L476 by SPI but our board uses a ESP-WROOM-02 (ESP8266) instead, connected by UART in this case. Our board is based on a STM32L476 but with different package. Tasks to be done are two: 1.- To replace the wifi library originally developed for the control of Iventek ISM43362 wifi module (connected by SPI) by a new librar for the control of ESP8266 connected by UART (in our case: USART2, pins PD5 and PD6), includding calls from aws_wifi.c or from other parts of the code. The task, so, implies full development of such a new library for ESP8266. 2.- To change the default I2C port in the Discovery Kit (I2C2) to the one we are using: I2C1 (pins PG13 and PG14) More info on attached files and following link: [url removed, login to view]

    $672 (Avg Bid)
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    15 bids

    We are a manufacturer and seller of egg incubation products. We are re-designing a thermostat controller for an incubator. We worked with a university senior class design team and mostly completed the project. However, now their class has ended and we still need to finish the project. We need an engineer with expertise in I2C and experience with PID controls. Thermostat and hygrometer sensor experience will be a huge help. I have attached a document written by the design team which explains the project, what was completed, and most importantly, what is not yet completed. Please see the document and especially the page which shows what still needs to be completed. We have all of the project and design files and documents that will be needed to finish this project. We also have an original prototype that was produced by the team. Please review the document and let us know if you are interested.

    $496 (Avg Bid)
    $496 Avg Bid
    11 bids

    I know only very basic stuffs about PIC. I want to learn more. You have to teach me PIC Microcontroller. Weekly 5-6 hrs and we can discuss it. I do have all the development boards. MPLAB and all the necessary things. I want to learn it in C , but not in assembly language. I prefer Skype or any other online platform.

    $5 / hr (Avg Bid)
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    16 bids

    Hi. Need to port Microchip ATWINC1500 (ATWINC1510 device, to be exactly) driver for Silabs EFM32 Series 1 microcontroller (EFM32GG11) and their SPI Driver from Simplicity Studio. Not familiar with Atmel Software Framework (ASF), but the library integrated to it.

    $10 - $50
    $10 - $50
    0 bids

    As project says it should be a PWM rectifier, drawing active power from the grid. It does not have specific requirements like power specification or so. IGBT can be used or MOSFET's. As PWM can be used any PWM with PFC. Only the schematics interest me. The PCB I will make it myself.

    $42 (Avg Bid)
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    10 bids

    using adxl355 accelerometer to check for accident and sending location to server(then to firebase), for location gps neo6m is used and to send data to server gsm/gprs sim808 is used, lcd is also used to confirm accident before sending location to server. old configuration is shown in pic below.

    $219 (Avg Bid)
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    6 bids

    We need to Post Sample Data file (in .txt format) containing Sensors info which is stored in Memory Card for particular time to Website/online using NodeMCU wifi module. So we can download it whenever we wants.

    $117 (Avg Bid)
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    6 bids
    Conceive SDR GnuRadio blocs 5 days left
    VERIFIED

    This project aims at conceiving GNU-Radio blocs for receiving / transmitting modulated radio messages using Software Defined Radio (SDR). I need a software component lib called "gr-beaglesdr" of a software-defined radio receiver and transmitter combined with suitable hardware device BeagleSDR. It can be used to listen to or display data from a variety of radio transmissions and also send waveform. "gr-beaglesdr" should support most of common features like CRC checks of the payload and header, decoding channel in real time... This library will primarily be tested with BeagleSDR as receiver and as transmitter. There are both AVR, FPGA, SDRAM, ADC and DAC inside BeagleSDR. You would be provided a sample of BeagleSDR board, however you need Beagleboard-x15 to start working in this project.

    $699 (Avg Bid)
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    4 bids

    czy Ktoś ma w posiadaniu albo umiałby mi znalźć programmers manuale, które zawierają opisy funkcji c w kursie: [url removed, login to view] / blog / stm32-praktyce-1-platforma-srodowisko-id2733 pdf do standard periperal tych funkcji nie zawiera, także szukam dokumentacji do stm32f1xx

    $28 (Avg Bid)
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    3 bids

    Bit stuffing is the process of inserting non-information bits into data to break up bit patterns to affect the synchronous transmission of information. For a serial sequence 10111110; a stuff bit '0' should be added after every 5 consecutive 1's and vice versa when there are consecutive 0's

    $32 (Avg Bid)
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    looking for someone with skills in Protocols: K-Line (ISO 9141, ISO 14230), CAN (ISO 15765-4), KW1281, KWP2000, ISO-TP (ISO 15765-2), UDS (ISO 14229), VW TP2.0 and who is able to reverse engineer a Infineon Processor and add special functions to it.

    $598 (Avg Bid)
    $598 Avg Bid
    7 bids

    I am replacing USB cable with a wi-fi module for transfer data from a sensor that has an embedded Microprocessor. It will communicate USB-CDC high speed to a wi-fi module that will transmit the data stream to a PC using Wi-fi Direct; Therefore many functions that relate to Wi-fi communication to the Web, Networks etc. do not apply. Further, I intend on using some kind of encryption (for security) and think it should be WEP security, but not sure. (any comments on this would be appreciated). I have created a list of features/functions and would like have you highlight only those that need to be addressed/included in the Wi-fi part of the firmware plan. Further, I would like you to create a High Level outline of those functions/Steps/Features that need to be included for a successful data transfer application. The goal of this short project is to help focus only on those components necessary to accomplish a streaming data transfer via Wi-fi direct to a PC, possibly Android (not Mac).

    $191 (Avg Bid)
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    6 bids

    communicate rfid reader through TCP/IP using socket programming and keep scanning the rfid tags, when any detected software should send uid of tag to server via making background http (Url action sending tag id to server).

    $168 (Avg Bid)
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    10 bids

    I have a GPS tracer device Coban TK103B for tracking vehicle. The device is controllable via SMS and GPRS. I would like to rewrite the firmware to receive SMS message from GPS tracker in different format. For example: Original Current Location SMS message: picture (1) Expected Current Location SMS message: picture (2) The project consist essentially of edit SMS message received from GPS tracker. I need source code and instructions on how to flash the device.

    $272 (Avg Bid)
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    5 bids

    Hi, I need support in develpoing a prototype for voice based product dispensing system. Happy to disucss in detail, if you find it relevant,

    $554 (Avg Bid)
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    6 bids

    I am looking into the possibilities of modifying the Bitmain x3 to work with the new CryptonightV7 Algo that Monero just forked to. There is a rumor that the firmware could be modified to work with the new algo.

    $21409 (Avg Bid)
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    8 bids