电子 工作与竞赛

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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浏览Freelancer上的工作

项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(CNY)
CNC RETROFITTING REQUIRED URGENTLY CNC RETROFITTING REQUIRED FOR MITSUBISHI AND SEIMENS MAKE CNC. 0 电子, 电子表格, PLC 与 SCADA, 并行自动化, JD Edwards CNC Oct 24, 2017 今天6天 23时 -
Hardware Panel and Control Software I am a System Engineer offering Solutions. Wee require to build a hardware panel made of NKK RGB LCD and OLED Push buttons, we required the services of Electronic engineer to build the prototype and a software Engto make the SPI, comms to a pc and controller 1 电子, 电機工程, 嵌入式软件 Oct 24, 2017 今天6天 23时 -
Multilevel inverter with PID and AI control by using MATLAB I had designed a multilevel inverter block diagram by using Matlab. Currently, I needs help on adding a PID and also an AI control towards the multilevel inverter block diagram, the staircase output waveform from three of the circuits is then compared to finish my project. The multilevel inverter layout that need to use to add those controls is uploaded below here. 10 工程, 电子, 矩阵及数学软件, 机械工程, 电機工程 Oct 24, 2017 今天6天 21时 ¥915
CNC RETROFITTING REQUIRED CNC RETROFITTING REQUIRED FOR MITSUBISHI AND SEIMENS MAKE CNC. 3 电子, 电子表格, PLC 与 SCADA, 电機工程, JD Edwards CNC Oct 24, 2017 今天6天 20时 ¥2864
Making scheme of protecting board for 3th Li-ion battery I need protection board for Li-ion battery. It must do this task: overcharge with balancing, overdischarge, temperature detection, and overcurrent. The overcurrent must work throuth some time delay, because this board will be use in screwdriwer and it have high current pick at start. You can make it by use components: dw01a, tp4056 or components with the same function. In the net you can find som... 5 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Oct 24, 2017 今天6天 19时 ¥597
whole house spike leveler a small battery or capacitor system to augment household draw when there is a usage spike due to several big draws hitting at the same time.. since spikes can influence the metering peaks i am wondering if this is a possible workable application that could be made cheap enough to offset the increased electric utility costs..? 4 工程, 电子, 微控制器, 电機工程 Oct 23, 2017 今天6天 18时 ¥2804
Rapberry Pi3 Python MODBUS 485 , DMX PWM Need a python script made to run on Raspberry Pi 3 Headless installation. The RPi3 shall be a slave in MODBUS RS485 network . The Rpi3 has a USB to Serial converter which shall be used to connect to the network. Functions to be performed by Rpi3 1. Fetch data over modbus from PLC Mitsubishi FX5U. Shall provide the addresses. 2. Receive digital signals (5) from GPIO and send them to PLC. 3. Tr... 4 Python, Linux, 电子, 树莓派 Oct 23, 2017 今天6天 17时 ¥1286
Looking for Electrical or Electronic Engineer For Report Rewriting I Need a electrical / electronic engineer to help me in technical report rewriting.... 17 工程, 电子, 技术写作, 电機工程, 印制板布局 Oct 23, 2017 今天6天 14时 ¥187
Basic Engineering Mathematics and Electronics Looking for a freelancer with a great background in Engineering Mathematics and good electronics background who is eager to work and has a great work ethic. 14 电子, 统计学, 电機工程, 数学, 电路设计 Oct 23, 2017 今天6天 12时 ¥2201
Arduino Uno Programming Hi, need arduino uno programmers, who can delivers me some code. i have 2 arduinos, which communicated over nRF24L01, and we need some code for the communication. the message between boths must be encrypted. need this to be done asap. thanks, 4 C 编程, 电子, 微控制器, 电機工程, Arduino Oct 23, 2017 今天6天 12时 ¥965
Design and Simulation Report Design and Ltspive and simulation 7 工程, 电子, 微控制器, 电機工程, 电路设计 Oct 23, 2017 今天6天 12时 ¥139
Design Data logger / PLC I would like to develop modular PLC/data logger Communication: - GSM/gprs/3G/lte (sms) - Wifi - Lora wan -LAN Power 3,3-6 V device should use 2 x lit 3,6 batteries but if needed needs to be easy to connect to power supply with 2 digital inputs saving 1 per/h sending 1 day should work more than 5 years. Inputs : up to 15 INPUTS Modular / basic device only 2 inputs /Powered from d... 4 无线, 电子, 微控制器, PLC 与 SCADA, 电機工程 Oct 23, 2017 今天6天 11时 ¥32247
Control System Equations I need mathematical justification and proof on the breakaway point in root locus SECOND ORDER SYSTEM ONLY The proof must show why always the break away point is in the middle also the justification and the proof must have a mathematical equation and proof on the general concept of the road locus of second order system only I will attach a picture to show what I mean 5 工程, 电子, 矩阵及数学软件, 电機工程, 数学 Oct 23, 2017 今天6天 9时 ¥145
USA Telco/WiFi/Btd IoT Engineer for Testing & Compliance We need to localize an IoT device to American standards/certifications. The device has WiFi, Bluetooth, and will have either UMTS or LTE cellular connectivity (all M2M) 5 电子, 测试/质量管理, 软件测试, 电機工程, 通讯工程 Oct 23, 2017 今天6天 8时 ¥27543
I need an expert full stack developer: Android Mobile Apps -- 2 - 23/10/2017 13:37 EDT Embedded system project. Preferably EagleCAD design. Will need good documentation, library, schematic, BOM, Gerbers, etc. iPhone & Android App Updates for iFndr Beacon built tested and ready to download on Appstore & Google play. This is an ongoing project with weekly maintenance and updates payments to be determined. Part 2 of this job: Update UI to look professional!!! Details w... 41 电子, Mobile App Development, iPhone, 安卓, Objective C Oct 23, 2017 今天6天 8时 ¥3533
Development and Design of a Buck Converter - open to bidding Design a simple high efficiency switching voltage regulator circuit capable of delivering a minimum of voltage. 1. I need prototyping (real project) 2. report 9 C 编程, 电子, 微控制器, 电機工程, 电路设计 Oct 23, 2017 今天6天 8时 ¥1232
PCB Layout Hello, we need a PCB designed, that has the following characteristics: CC2640R2F from Texas Instruments, Antenna printed on the PCB, USB Type C or B for power supply and ground 2x USB Type A Female connected to UART capable ports of CC2640R2F We will need 10 development boards plus an addtional 500 for the 0-series + plasic cases of these, plus an adapter to connect to the CC2640R2F to... 13 工程, 电子, 电機工程, 印制板布局, 工程制图 Oct 23, 2017 今天6天 4时 ¥46447
Arduino Project / MKR1000 Hey, I wanted to know if you can do my Arduino Project - basically, I'm making a device using the MKR1000, It needs to be able to collect temperature, then output this data to thinkspeak every 15 seconds, it will also need to tweet out this data every hour. It also needs to have 3 LED's, when the temperature is between 0-16 it will activate the blue LED, 17-23 will activate the green LE... 10 C 编程, 电子, 微控制器, 电機工程, Arduino Oct 23, 2017 今天6天 3时 ¥175
PWM Amplifier I am looking for someone to design and build a prototype board that meets the below design criteria. Are you able to advise on if you are able to create it, lead time, and pricing for two units please? Inputs • RJ45 o Active PoE 802.3at RJ45 (30W) • Screw Terminals o PWM for voltage on output 1 (it will be used for different devices requiring different voltages) – From Ardui... 21 电子, 微控制器, 电機工程, 印制板布局, Arduino Oct 23, 2017 今天6天 1时 ¥5970
Read Arduino Read NFC Hi. I'm attempting to get my NFC chip to read correctly. The NFC chip has an inbuilt temperature sensor, I can successfully read the chip's ID, however I can't get any of the other information from the chip itself. Below is the code which reads the Chip. I'm told that I need to send a RAT code to get a response from the chip. Details for the Arduino Reader are here... 5 电子, 微控制器, Arduino Oct 23, 2017 今天6天 ¥166
Survey in Myanmar We need to collect cost benchmarks for international curriculum schools in Yangon, Myanmar 3 电子, 交流 Oct 23, 2017 Oct 23, 20175天 23时 ¥219
Arduino Uno Programming Hi, need arduino uno programmers, who can delivers me some code. i have 2 arduinos, which communicated over nRF24L01, and we need some code for the communication. the message between boths must be encrypted. need this to be done asap. thanks, 28 C 编程, 电子, 微控制器, 电機工程, Arduino Oct 23, 2017 Oct 23, 20175天 21时 ¥1091
Needs handson training in repairing of ac/dc drives candidate invited to bid who can have good knowlege in repairing of ac/dc drives 3 电子, 微控制器, 电子表格, PLC 与 SCADA, 电機工程 Oct 23, 2017 Oct 23, 20175天 20时 ¥907
Signals and System Theory Looking for someone to help me understand material from this subject. I would prefer a graduate or undergraduate in Electrical Engineering or Computer Engineering. If you feel confident about this subject then make a bid. 24 工程, 电子, 矩阵及数学软件, 电機工程 Oct 23, 2017 Oct 23, 20175天 19时 ¥259
POS for cashless gaming systems and player card We are slot game developers looking to develop cashless card system which includes a POS and RFID card system for the slot machine. POS system must be able to maintain meter number for each machine, add credits, run In/Out data by date, redeem credits off the cards and maintain redemption options for players. This project will consist application development, system engineering and electronics. 4 .NET, 工程, 电子, 软件构架, VB.NET Oct 22, 2017 Oct 22, 20175天 18时 ¥94554
Simulink inertial navigation system for quadcopter I am making a flight control system for a drone, using Matlab(Simulink) and the hardware I am testing it on is a Pixhawk. It's an inertial navigation system, so I am not allowed to use GPS or Opticflow sensors! The Pixhawk has a built in Gyroscopes and Accelerometers to get IMU readings. Using IMU the simulink model will double integrate and find distance and its position relative to home. It... 5 电子, 矩阵及数学软件, 电機工程, LabVIEW, Arduino Oct 22, 2017 Oct 22, 20175天 18时 ¥1021
Camera recording on trucks hello and thank you for your time Please, read carrefully before post a bid. Its a long project. We have a hardware composed by onboard cameras installed in a truck, the cameras record 24/7, usually each truck has 4 cameras, a MDVR, a SSD card, gps and a antenna. Images from the truck may be send trough 3g/4g or when the truck comes inside the garage the files are send from the truck ... 14 C 编程, 电子, 微控制器, 电機工程, C++编程 Oct 22, 2017 Oct 22, 20175天 15时 ¥17195
Project for Daniil R. Hi Daniil R., I noticed your profile and would like to offer you my project. We can discuss any details over chat. 2 电子, 矩阵及数学软件, 电機工程, 印制板布局, , 电路设计 Oct 22, 2017 Oct 22, 20178天 15时 ¥57
Transformer less 3Kw inverter system Hello. I'm trying to build a 3kw transformer less inverter system. I say transformer less because the idea is for the inverter box to be quite small. Output AC should be 50Hz 220-230V. Input DC is 24v nominal (min 20v, Max 34v). I need this done between 24-48 hours. If the timeline is not achievable, please do not bid. 15 工程, 电子, 微控制器, 电機工程, 电路设计 Oct 22, 2017 Oct 22, 20175天 5时 ¥3023
Electrical engineering support I purchased this electrical timer ([链接已删除,请登录查看]), which you hard wire into your water pump ([链接已删除,请登录查看]). When the water pump has been on for 30 minutes it cuts out. It uses a Omron H3JA to do this ([链接已删除,请登录查看]). My problem is this.... when the pump turns on (by a tap turning on) the pump is activated and draws power and the timer function counts. I want to soft wire into a cord so I can p... 18 工程, 电子, 电機工程, 印制板布局 Oct 22, 2017 Oct 22, 20175天 4时 ¥829
Arduino wordclock modification Hello i got the following code working [链接已删除,请登录查看] //wordclock new begining NO patterns its a wordclock scetch. with the help of RTC module to controll a digital adressable led RGBW strip. different section of the led strip light up according to what time it is.(individualPixels[XX]=1;) now i can only adjust what colors and brightness the leds display with the help of 5 ... 4 C 编程, 电子, 微控制器, 电機工程, Arduino Oct 22, 2017 Oct 22, 20175天 ¥212
Mechanical Engineer _ Digital Drum Problem Someone who is mechanical Engineer and can solve digital Drum Problem Its urgent thanks 16 工程, 电子, 机械工程, 电機工程, 化学工程 Oct 22, 2017 Oct 22, 20175天 ¥848
electrical lab Expert_ Someone who can do in Electrical Lab & Electronics Expert and can do a job its urgent. 24 工程, 电子, 机械工程, 电機工程, 电路设计 Oct 22, 2017 Oct 22, 20174天 23时 ¥842
Electronics Expert someone who is good in Electronics and can do a small job.. Its very urgent.. 48 工程, 电子, 电機工程, 印制板布局, 电路设计 Oct 22, 2017 Oct 22, 20174天 23时 ¥795
Help in Transimpedance Amplifier Design I need help in Transimpedance Amplifier Design 6 工程, 电子, 矩阵及数学软件, 电機工程, 电路设计 Oct 22, 2017 Oct 22, 20174天 23时 ¥133
Matlab Engineers Expert - $40-50 A TASK Read through Matlab project 4 (this is the file that you need to do) and understand the specifications. Then check on the code and make sure that it is correct as the specifications. 30 工程, 电子, 矩阵及数学软件, 电機工程, 通讯工程 Oct 22, 2017 Oct 22, 20174天 22时 ¥430
Project for Boshaker PLease bid here for further details 9 工程, 电子, 矩阵及数学软件, 电機工程 Oct 22, 2017 Oct 22, 20174天 22时 ¥2539
need a bidder on commission basis to put on bids I need a full time bidder on commission basis in order to bid on projects and the payments will be based on the number of successful projects carried out 7 电子, 微控制器, 软件构架, 电機工程 Oct 22, 2017 Oct 22, 20174天 21时 ¥109
Embedded Training I need freelancers who can train students on Embedded Systems, Arduino, Iot etc 12 C 编程, 电子, 微控制器, 电機工程, Arduino Oct 22, 2017 Oct 22, 20174天 20时 ¥25
Digital system and microprocessor small task -- 2 small task on digital system and microprocessor using verilog amount usd 20 time 1 day 12 电子, Verilog / VHDL, 微控制器, 电機工程, FPGA Oct 22, 2017 Oct 22, 20174天 20时 ¥199
Electrical engineering expert needed to do vhdl code Electrical engineering expert needed to do vhdl code $30 pay 10 工程, 电子, Verilog / VHDL, 电機工程, 学术写作 Oct 22, 2017 Oct 22, 20174天 19时 ¥331
Arduino Code along with detailed report Background Dementia is a global disease that usually affects the brain function of the elderly aged over 65. Alzheimer’s is a type of dementia that causes the elderly to lose their memory, change their behaviour and impairs their ability to perform daily activities (in later stages). In Australia, an estimated 165000 elderly suffer from dementia ([链接已删除,请登录查... 15 电子, 微控制器, 报告写作, C++编程, Arduino Oct 21, 2017 Oct 21, 20174天 17时 ¥813
Need some help with circular/ring buffer (Arduino). I'm working on a project related to OBD2. I basically have to extract 4 consequent data of RPM and Speed, and light the led if a fixed parameter is met. This involves some work of circular/ring buffer, where I'm stuck. I need to get this done on urgent basis. Will share files after a chat. Thanks! 13 C 编程, 电子, 微控制器, C++编程, Arduino Oct 21, 2017 Oct 21, 20174天 3时 ¥128
Programme_test_ application windows forms for communicate with arduino Ethernet shield via wifi using sockets for send Joystick values from PC to arduino 26 C 编程, 电子, 微控制器, C++编程, Arduino Oct 21, 2017 Oct 21, 20174天 1时 ¥3043
Mechanical Bot - Tapper for Iphone/Android I want you to create a mechanical tapper for an iphone and android that taps for you. It can be a replica of the Flex Bot 6. 8 电子, 机械工程, 电機工程, 电工 Oct 21, 2017 Oct 21, 20173天 22时 ¥839
Engineering Project Hi, Please see attached the project requirements. Need step by step and detailed solutions in 24 hours 7 电子, 电機工程, 通讯工程 Oct 21, 2017 Oct 21, 20173天 20时 ¥345
Motion Simulator redesign Project Hi All, I require someone to help redesign the first prototype which has been completed into the next version. The initial work will involve modifying the current design with a new top yaw section. 99% of new design elements required have been found, just need an experienced mechanical engineer to look at the design and make it all work together. Assessing the COG, stability plan out how to at... 4 工程, 电子, 机械工程, 电機工程, 印制板布局 Oct 20, 2017 Oct 20, 20173天 14时 ¥202
Electrical Power Engineering Kindly find below two parts to be solved: Problem 1 Two single-phase transformers are connected open-Y open-Δ to provide power for a three-phase Y-connected 100-kVA load with a 0.80 lagging power factor and a 50-kVA single-phase load with a 0.90 lagging power factor, as shown in Figure 1. Assume that the primary-side voltage of the bank is 7620/13,200 V and the secondary-side voltage is ... 18 电子, 微控制器, 电機工程, 电路设计 Oct 20, 2017 Oct 20, 20173天 12时 ¥225
Umpire Indicator I would like to manufacture an electronic umpire ball/strike/out indicator. I can provide specifics on electronic operation, logic and physical size and shape. 4 电子, 机械工程 Oct 20, 2017 Oct 20, 20173天 11时 ¥1770
Matlab/Simulink simulation (lorawan) Multiple gateways (lorawan) and thousands of nodes(lorawan) simulation. 5 工程, 电子, 矩阵及数学软件, 算法, 电機工程 Oct 20, 2017 Oct 20, 20173天 7时 ¥172
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