Electronics is the branch of science and technology that makes use of the motion of electrons for accomplishing some tasks like information handling or device control. If your business is about electronics engineering and electronic circuits, then you will not have much time to focus on engineering aspect of your business. You can easily outsource electronics engineering to capable and willing freelancers as a matter of routine. Post a job today to find your electronics talented freelancer!

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    I am in need of a Modbus RTU slave for a Raspberry pi that uses a Modbus RS485 device with manual tx-enable. It just has to set the output high before it sends the reply and low when it listens. There will be multiple slaves so will have to reference a device ID. I am sure this can be implemented in pymodbus or modbus-tk. The callback functions in pymodbus should do it but I am unable to find an example that works.

    €299 (Avg Bid)
    Urgjent
    €299 Oferta mesatare
    2 ofertat
    TEST VALVES SCENARIO -- 2 6 ditë left
    VERIFIKUAR

    TEST HYDRAULIC ELECTROVALVES The Particle Web IDE National control devices PCA9685 8-Channel 8W 12V FET Driver Proportional Valve Controller 8-Channel DC Current Monitor with I2C Interface 2-Channel Signal Relay 1A SPDT I2C Mini Module 1 i2C pressure sensor 1 Interface ADC....etc Rasbery i2c communication, Particle Photon,The Particle Web IDE more info :

    €514 (Avg Bid)
    €514 Oferta mesatare
    13 ofertat

    I need an electronic engineer to help me design an RFID device connected to an interface powered with 2 power sources (battery and car dc cable ) The person has to be proficient in electronics and IOT

    €405 (Avg Bid)
    €405 Oferta mesatare
    21 ofertat

    Hello I mainly need a knowledgeable person in PCB design to help with import an old project from CADint and edit it on Orcad. Most of the work will be mainly on Orcad PCB design. Please do not bid if you are not good enough on Orcad

    €4 / hr (Avg Bid)
    €4 / hr Oferta mesatare
    5 ofertat
    Trophy icon solar panel cable design 4 ditë left

    The solar cable design system should take into consideration the following factors: For each of the different solar panel string cable configurations (6, 8, 12, 16, 20, 24, 28, and 32), the following design requirements should be taken into consideration: 1. Voltage and current rating of the solar panels: This information is crucial for determining the size of the cables that are needed for each configuration. 2. Cable insulation: Choose a suitable insulation material that can withstand high temperatures and UV radiation. 3. Cable length: The length of the cable between each panel and the junction box should be calculated to ensure that the correct cable size is used. 4. Number of strings: The number of cables that are needed for each configuration should be determined based on the number...

    €161 (Avg Bid)
    I garantuar
    €161
    1 kandidaturat

    Expert experience with home/office security controllers. Want a cheap Programmable Controller with 3G/4G enabling multiple sensors, cameras and alarms. Basically if a sensor is triggered I want the camera in the same zone to take a video and send to the cloud over 3G/4G. Its an IOT programmable controller. There are many in the market but I am looking for a price sensitive controller. Ideally want a controller that is expandable with regards to sensors/cameras/alarms etc I believe this can be sourced but if not, I'm open for someone to develop it. timeline is 7 days

    €505 (Avg Bid)
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    5 ofertat

    To simulate and read an impact on composite materials

    €449 (Avg Bid)
    €449 Oferta mesatare
    34 ofertat

    I need a soldering job USB port has come off cleanly from a circuit board. I need to bring this to you and have you do the work. I don’t really want to post away if I can help it.

    €17 (Avg Bid)
    €17 Oferta mesatare
    3 ofertat

    I need to develop pressure sensor based coding for ESP32 mcu. Here, I am planning to use US9111 pressure sensor with mcp3421 ADC converter. I want to measure +5PSI to -5PSI pressure value, with auto zero calibration. When there will no pressure on the pressure sensor that must be zero value at the initial condition. It should be strictly maintain. It can be set by auto zero calibration. I want to measure pressure precisely, so you need to do the coding with exact calculation.

    €62 (Avg Bid)
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    12 ofertat

    I need to make mini geared stepper motor do one 360° turn Need to have screen showing timer and be able to adjust time in minutes example : Do one turn every 5 minutes

    €66 (Avg Bid)
    €66 Oferta mesatare
    34 ofertat

    I need someone that has knowledge of this, to draw a graph from serial input which will be from an ADC on the MCU and given to the communication port via RS232. I should be able to save this as a CSV file and open it later in excel and the software itself. Software must be able to give me pane view and compress view. Deliverable is source code project file.

    €117 (Avg Bid)
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    35 ofertat

    I need help understanding transient behavior of RC / RL / RLC circuits. I also need to understand Impulse Response and Convolution. Lastly I need someone who is an expert in Digital Signal Processing - Sampling, Quantization and Convolution. I need about 20 hours of your time between now and Tuesday Feb 7th.

    €108 (Avg Bid)
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    36 ofertat

    We need to build a circuit to read the rfid card as per the attached requirement document.

    €670 (Avg Bid)
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    12 ofertat

    arduino HW & SW mega e wifi good developer

    €723 (Avg Bid)
    €723 Oferta mesatare
    40 ofertat

    We look for an implementation of Art-Net 4 and RDM based on our implementation of DMX. We are using a Cortex-M 4 MCU (Artery AT32F-415 RCT6 MCU) The AT32F415 Series Reference Manual V1.04 can be found here: The implementation should be as hardware independent as possible, therefore the implementation of Art-Net is planned on the cortex-M 4 MCU and the UDP data from the ESP module is being transmitted using throughpass and SPI link. This is the specification of RDM: You can use various open source implementations for our implementation. This is an example for a RDM implementation: Similar for ArtNet: An implementation of DMX is being provided. Design and Implementation Constraints The software should be programmed in Standard C. The IAR extensio...

    €965 (Avg Bid)
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    Se trata de desarrollar una Carrier Board para el SoM de Radxa ROCK 3 Compute Module con el que disponer de conexiones Ethernet, Alimentación 12Vdc, HDMI, RS485, CAN Bus.

    €884 (Avg Bid)
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    13 ofertat

    We are looking for a long-term agent with knowledge regarding small electronics systems and projects of varying size based on single-board computers (SBC) and other small circuit board solutions. Our prototypes and devices include touch screens of varying sizes, single-board computers (Raspberry Pi, Libre Computer, Arduino), Large capacity batteries and other small circuit boards and components as well as circuit switches. The expertise we require relates to designing and building an working prototype for the company. By using the aforementioned parts in order to make. For example. A portable gaming platform powered by single-board computer (SBC) ie. Raspberry Pi, a chargeable large capacity battery, buttons and touch screen. Expertise regarding the operating system (bootloader in parti...

    €16 / hr (Avg Bid)
    €16 / hr Oferta mesatare
    26 ofertat

    To develop a embedded c code for getting data from 8 ADC channels of stm32f103c8t6 controller and transfer the acquired adc data over modbus rtu / rs485.

    €26 (Avg Bid)
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    13 ofertat

    Hi all, I need to write data from an RS485 device to a Webserver through the device Usriot TCP232-410s. I have a RS485 sensor connected to this device, and I want to write data in a database in my server. Is important to know how the device works:

    €130 (Avg Bid)
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    29 ofertat

    The scope of work is in the attachment. A few things we need equal run time on the 3 Chillers. For example Chiller 1 runs 80% of the time Chiller 2 runs 15% of the time Chiller 3 runs 5% of the time We would like the chillers to switch from chiller 1, 2, 3 cycle operations to 2, 3 ,1 cycle to a 3, 2, 1 cycle in operation then back to 1, 2, 3 cycle. We need a similar situation with the Supply Pump and Backup Pump equal run time like the chillers We need a similar situation with the Circ. Pump and Backup Circ. Pump equal run time like the chillers As for the auto switch over for the Circ. Pump to Backup and Supply Pump to Backup is a case of failure on the main pump this is controlled by a pressure switch on mai...

    €2002 (Avg Bid)
    €2002 Oferta mesatare
    28 ofertat

    WE NEED WEIGHING SCALE PCB BASED ON 24 BIT 1232 ADC AND HX710 with 8 BIT MICROCONTROLLER 1.ADC- HX 710A AND 1232 2.MICROCONTROLLER- ANY ONE Easy Available and IN PRICE 7 SEGMENT 7 DIGIT COMMON ANODE DRIVER .

    €571 (Avg Bid)
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    Hello, is it possible if I can get help with doing simulation for my final year project with the title of "Development of Single-Phase Transformer-less DC-AC Inverter For Photovoltaic System" 1. I need the simulation using MATLAB that uses Sliding Mode Control (SMC) in the system to reduce switching losses 2. I need the simulation using MATLAB that uses uses hybrid pulse width modulation (PWM) techniques to reduce leakage current I only need the MATLAB solution, and not the whole report :")

    €45 (Avg Bid)
    €45 Oferta mesatare
    20 ofertat

    Each year food retailers and domestic air-conditioning users spend millions of dollars cleaning air-cooled condensers. Some of these condensors require more frequent servicing, some less frequent servicing. There is currently no solution available to accurately calculate the ideal cleaning time. I have designed a device that I think will be useful in helping identify when to clean condensors. A previous Freelancer has developed the PCB design and I am now seeking a Freelancer to help with the next phase of the project, building the PCB, developing the Firmware and testing the device. The design uses Sigfox, specifically the STM32WL chip as well as a number of different I/O's for example NTC temperature probes and kWh logging using HLW8012. If you are familiar with PCB de...

    €1404 - €2808
    I cilësuar I vulosur MRS
    €1404 - €2808
    23 ofertat
    1mA current source 4 ditë left
    VERIFIKUAR

    Looking for knowledgable guy to help with 1mA current source circuit

    €15 (Avg Bid)
    €15 Oferta mesatare
    31 ofertat

    An automatic Braking system is an intelligent mechatronic system includes an Ultrasonic wave emitter provided on the front portion of a car producing and emitting Ultrasonic waves. An Ultrasonic receiver is also placed on the front portion of the car operatively receiving a reflective Ultrasonic wave signal. The reflected wave (detected pulse) gives the distance between the obstacle and the vehicle. Then a microcontroller is used to control the speed of the vehicle based on the detection pulse information to push the brake pedal and apply brake to the car stupendously for safety purpose.

    €341 (Avg Bid)
    €341 Oferta mesatare
    11 ofertat

    This jobs consists of creating a YouTube video to show off our product features. The product is an electronic board that provides analog to digital conversions for the Raspberry Pi. It is programmed with Arduino and communicates over WiFi using the UDP protocol. The video must be between 5 and 20 minutes long. They must show screen shots of the codes, pictures of the product and hands on situations. The pictures provided are only examples. The person must have good knowledge of electronics, Arduino, Raspberry Pi and of video creation, video editing and picture editing. The voice can be electronically produced. Additional information can be found on our web site

    €307 (Avg Bid)
    €307 Oferta mesatare
    38 ofertat

    I need to build a prototype with Arduino Nano of a multiple video night vision and pir sensors transmitting to a receiver with a High definition small touch screen when the sensor is triggered and I can switch from the receiver the view of the single camera I want. The project should include the code for the transmitter and the one for the receiver and the stl file for the 3D printing of the trasmetter and the receiver containers. The transmitter container should be as small as possible, considering it needs to support a small battery and transmit to long distance with the best quality as possible. Mini usb rechargeable and mini solar panel included to recharge. The receiver should be as thin as possible and it should have a thin battery both transmitter and receiver batteries should be...

    €442 (Avg Bid)
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    26 ofertat

    Hello, We are building an Electron app for recording 3 simultaneous streams and saving them as a quad video recording. We are looking for someone to help us incorporate FFMpeg into the Electron build for rendering the videos in the 4 quadrants and saving them. Please only apply if you have experience building FFMpeg into an Electron app.

    €34 / hr (Avg Bid)
    €34 / hr Oferta mesatare
    36 ofertat

    IoT project. Need early-stage design and development.

    €44 / hr (Avg Bid)
    Lokale
    €44 / hr Oferta mesatare
    22 ofertat

    require to route a pcb with component placement in easy eda

    €86 (Avg Bid)
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    30 ofertat
    PCB Designer 3 ditë left

    We need a PCB Designer to help me to develop the project together. Our talented team is our greatest asset. We provide opportunity, reward performance, and support a positive and balanced work environment. Work from home.

    €28 (Avg Bid)
    €28 Oferta mesatare
    40 ofertat
    Congestion control optimization 3 ditë left
    VERIFIKUAR

    Congestion control optimization of the vehicular network based on 5G-NR-V2X sidelink communication. We will provide congestion control code, the work needs to add optimization content on the basis of the original code.

    €174 (Avg Bid)
    €174 Oferta mesatare
    4 ofertat

    Necesito crear un firmware en C# para manipular tarjetas electrónicas que se comunican con una BD Mysql

    €164 (Avg Bid)
    €164 Oferta mesatare
    14 ofertat
    Need Electronics R&D Engineer 3 ditë left
    VERIFIKUAR

    Responsibilities and Duties: Integrate and validate new product designs Creating engineering or technical drawings as per the specifications provided Prototypes bring-up, testing and debugging Executes component- and system-level simulations Design and implementation of electronics hardware (PCB) Design, develop, implement, test and debug microcontroller / microprocessor-based hardware proto testing code implementation. making calculations of product dimensions, drawing sketches of product ideas, and designing mockups of proposed products. Develop and complete projects Sourcing of raw materials. Purchase electronics device and equipments depending upon project needs Troubleshooting embedded systems and diagnosing errors, malfunctions, or inefficiencies firmware drivers for hardware periph...

    €11 / hr (Avg Bid)
    €11 / hr Oferta mesatare
    21 ofertat
    Electrical Engineer required 3 ditë left
    VERIFIKUAR

    Electrical engineer required having expertise in IC design and simulation with short report

    €122 (Avg Bid)
    €122 Oferta mesatare
    11 ofertat

    looking marine electronic engineers for checking navigation instrument and replace if broken, near Connecticut Bridgeport. we will pay for relace instruments. price just for labors cost.

    €1712 (Avg Bid)
    €1712 Oferta mesatare
    15 ofertat

    Hi there. Currently we are using a CPU Board of Actions S500 SoC with an AMOLED 1.78" MIPI-DSI I2C Touchscreen. It's working fine in our Board. Now we upgraded our PCB with RockChip RK3566 SoC. So I need some expert support to move the Touchscreen Driver from our old S500 PCB to the new RK3566 PCB. Also need some basic GPIO configuration. All necessary remote access support will be provided upon development. Please apply with a relevant portfolio. Required previous Rockchip ARM CPU with MIPI driver development experience. Developers from Shenzhen, China or HK are highly preferred. Thanks.

    €128 (Avg Bid)
    €128 Oferta mesatare
    2 ofertat

    I have a couple of holiday homes with an airco (LG s12et) and a NILAN compact P heat pump. Both systems can hear or cool the house but at this moment a lot of times the systems are working against each other because the temperature that is wished, is not synchronising. Maybe this can be done with modbus or something. The project is: -selecting the right hardware -maybe write some programming language -With the right instructions I can connect the hardware myself easily. I have attached the NILAN specifications. The LG airco specifics are easy to find online.

    €747 (Avg Bid)
    €747 Oferta mesatare
    1 ofertat

    I am doing a small project to measure the movement of an object, I am thinking of using an image sensor, a ToF or even a LIDAR sensor, although I accept suggestions and new ideas.

    €84 (Avg Bid)
    €84 Oferta mesatare
    27 ofertat
    Electrical Engineer -- 2 2 ditë left
    VERIFIKUAR

    I need an electrical engineer who is good at doing the programming part

    €66 (Avg Bid)
    €66 Oferta mesatare
    21 ofertat

    Ms51fb9ae controller based mains dimmer with nec ir remote control ( by using wave choping methode) Interupt0 and timer3 for dimmer Interrupt1 and timer1 for nec ir decoding Everything must done in interrupt function nothing in main loop.. In main loop there is two buttons to increase or decrease dimmer values. Or just hang main loop or while loop.

    €10 (Avg Bid)
    €10 Oferta mesatare
    6 ofertat
    Heart Rate Monitor for Horses 2 ditë left
    VERIFIKUAR

    Hi, We want to make a heart rate monitor for horses , this project should require experience in electronics and pcbs where the the freelance is expected to show in his proposal what ICs he will work with, mentioning the exact model, and what time of microcontroller or microprocessor he will use, Thanks

    €401 (Avg Bid)
    €401 Oferta mesatare
    35 ofertat
    Antenna design using CST 2 ditë left
    VERIFIKUAR

    Brain phantom model is used to design antenna which is efficient compared to others. CST is used to design antenna. Better antenna is desired. Only Indians please.

    €392 (Avg Bid)
    €392 Oferta mesatare
    7 ofertat
    Arduino project 2 ditë left

    I want help for my arduino project , i am mechatronics student and i need to finish my last semester.

    €14 (Avg Bid)
    €14 Oferta mesatare
    26 ofertat

    Arduino code for machine using 5 ultrasonic and 5 servo motor and lcd screen and keypas

    €26 (Avg Bid)
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    28 ofertat
    TKE thermistor 2 ditë left

    There’s some things I didn’t specify in this drawing. The esp8266 has 15 pins on both sides, The lcd adapter has 4 pins to the left and 16 pins at the bottom. Then I’ll need another 16 pin vertical female header for the lcd screen (pin 1 from the adapter would need a trace going to pin 1 on the lcd adapter board, 2 with 2, etc.) As for the components I’ll just need holes so I can solder them. I’ll just need it printed as for which hole is which. [Removed by Freelancer.com Admin]

    €108 (Avg Bid)
    €108 Oferta mesatare
    24 ofertat

    This project is based on the save power concept, in bathrooms, we turn on lights and forget to turn them off which leads to power wastage .to tackle this problem we need to set the delay to lights to means after 7 -10 min of turning on the light it will automatically turn off, need to design a circuit to solve this problem

    €77 (Avg Bid)
    €77 Oferta mesatare
    27 ofertat

    Looking for Arduino, Rasperry PI code, bootloader experienced engineer

    €3900 (Avg Bid)
    €3900 Oferta mesatare
    12 ofertat

    Need software developer can work rfid impinj

    €1104 (Avg Bid)
    €1104 Oferta mesatare
    21 ofertat

    keeping in view of wind and temperature effects..span lengths 30 meter each...for total of 600m feeder length..total 20 spans..each lattice steel pole height of 30 feet from ground...by using pls cadd or sag10 software or through formulae simple calculation

    €15 (Avg Bid)
    €15 Oferta mesatare
    9 ofertat

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