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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项目/竞赛 描述 竞标数/参赛作品数 技能 已开始 结束 价格(HKD)
dds radio transmitter a fully configurable dds(digital direct synthesis) radio transmitter more than 2 watts detail with block diagram is given in the document 0 C 编程, 工程, 电子, 微控制器, 电機工程 Jun 19, 2018 今天6天 23时 -
Arduino eprom cloner from hex files I have lost original code and only have eprom hex files that I need to burn to blank chips. I had someone in the past create some software that can do this on my pc and I have been using it for about 2 years however I used my bootloader on another pc and now it will no longer function. I need someone who can work out how to reconfigure my clon er on my pc. 1 C 编程, 电子, 微控制器, 软件构架, Arduino Jun 19, 2018 今天6天 22时 $3859
POWER ACTUATION AND DIAGNOSTIC OPERATION BOARD Three boards 1 project Board-I POWER DIAGNOSTICS BOARD Looking complete PCB development inclusive of simulation, source code, microprocessor programming, and Bluetooth App, schematics and Gerber file development and actual working pcb prototype along with aux board that will monitor input of up to 10/ 20 with aux board coupled, 12v AGM battery bank for under and over voltages during charge and d... 2 电子, 微控制器, 电機工程, 印制板布局, Arduino Jun 19, 2018 今天6天 21时 $13078
Calibrate 7 energy meters by wiring up at a high consumption cable CALIBRATE 7 ENERGY METERS We have 7 pcs of energy meters, type EH10-DIN Carlo Gavazzi . The 7 energy meters need to be calibrated. Not via electronic programming, but by wiring up at a high consumption cable. The readings need to be higher then they are now. The maximum which needs to be added is +- 20 000 kWh. The various 7 meters need different readings (which we will inform in detail)... 3 工程, 电子, 机械工程, 电機工程, 电路设计 Jun 19, 2018 今天6天 20时 $1928
connecting and controlling devices in LABVIEW or Matlab Hello, I need someone who had experience before in connecting Keysight Osciloscope to labview or Matlab and can figure also how to control a motor there. What I'll be needing is just to get the motor to one place and make several steps according to the step size i make automatically while getting the data from the Oscilloscope on each step (Vpp) Please only write if you have experience with... 7 工程, 电子, 矩阵及数学软件, 电機工程, LabVIEW Jun 19, 2018 今天6天 18时 $1617
device engineer we need device engineer freelancers. you have to know about PCB. 16 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Jun 19, 2018 今天6天 16时 $1358
FPGA video processing via HDMI in and out Hello I am doing a small project and am on the lookout for FPGA and software developer to work on a prototype. We are creating a product that is very similar to SmallHD monitors where we take a HDMI signal, process that signal and display that video signal plus overlays such as histograms, false colour and 3D LUTS. What we require for this prototype is the ability to turn these features off and... 6 电子, 微控制器, FPGA Jun 19, 2018 今天6天 16时 $6437
RTS5423 Design, Complete Design in Altium including Schematic and PCBA Complete Product Design in Altium including Schematic and PCBA with all output files/libraries/footprints/Bom/mechanical drawings ETC... Design based around RTS5423 Schematic QFN-88 , Cost effective yet Impressive electrical characteristics 95.5mm by 60mm 4 or 6 layer (FR-4) 1.6mm 1oz copper 5/5mil spacing 0.25mm min hole size Black PCB with White silkscreen and Immersion Gold Finish Complete S... 5 电子, 电機工程, 印制板布局, 产品设计 Jun 19, 2018 今天6天 15时 $1955
Arduino firefighting robot Arduino code for a bluetooth controlled firefighting robot. The code should allow control of robot movements, up/down function of servo and on/off of a pump connected by a relay module. 17 C 编程, 电子, 微控制器, 电機工程, Arduino Jun 19, 2018 今天6天 14时 $145
need a Custom and Complete Schematic Redesign/ PCB designed in Altium Need to Update current Altium Design to New ICs reference design is available [login to view URL] - Libraries of Components including Components Schematics and Footprints need to be made/changed - Project Files Should be Production Ready Output Format, including complete BOM and Gerber/pick-place files - Design must be safe; the device must operate reliably. - Design must be optimize... 16 电子, 电機工程, 印制板布局, 产品设计, 电路设计 Jun 19, 2018 今天6天 14时 $752
Low Power GPS GSM PCB Design IoT / GPS / GSM PCB Design / Firmware Small form factor Very low power consumption. CAT 1 / CAT M1 Cellular connectivity Verizon, AT&T , T-Mobile (Global use) Battery percentage reporting / Low battery notification. Configurable ping times. I/O for 2 batteries Backup battery and Main battery. Accept battery input 36V, 48V or 52V batteries. Motion detection. Needs to pass cellular certificati... 12 电子, 微控制器, 电機工程, 印制板布局, 产品设计 Jun 19, 2018 今天6天 13时 $188
We need a Custom and Complete Schematic Redesign/ PCB designed in Altium/ Need to Update current Altium Design to New ICs reference design is available [login to view URL] - Libraries of Components including Components Schematics and Footprints need to be made/changed - Project Files Should be Production Ready Output Format, including complete BOM and Gerber/pick-place files - Design must be safe; the device must operate reliably. - Design must be optimize... 12 电子, 电機工程, 印制板布局, 产品设计, 电路设计 Jun 19, 2018 今天6天 13时 $978
EMBEDDED DEMO PROGRAM Need a hardware and software developer with strong skill sets that can code on the Raspberry Pi 3 and PINE ROCK64 platforms. Must have experience with H.264 video streaming, WiFi, Bluetooth, PZT Pelco protocol, GPIO, PWM servo control, gimbal servo control and remote software control. Project needs completed quickly. Rock64 Board [login to view URL] Raspberry Pi 3 [login to view URL] 5 C 编程, 电子, 微控制器, 电機工程, Arduino Jun 19, 2018 今天6天 12时 $102
PCB schematics testing and designing, other support I have python code, PCB schematics. I need its testing, PCB designing, and finalization of my electronics model. 8 电子, 微控制器, 印制板布局, 电路设计, 树莓派 Jun 19, 2018 今天6天 12时 $1039
Breakout Board design using eagle software We are looking for someone that can help us to design the breakout boards for "AFE4490(Pulse sensors)" and " ADS1294RIZXGT (For Heart rate and respiratory rate )" using eagle software. datasheet for ADS1294RIZXGT [login to view URL] and for AFE4490 [login to view URL] 14 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Jun 19, 2018 今天6天 11时 $3509
EV Charger HI, This is Anshul Shrivastava from Radite Group. Radite group is fastest growing company in India in field of Solar. We have already executed various projects in India. Radite Group is looking to enter into Electric Vehicle Charging Station business and looking for consultant to develop the PCB design for the same. We have gone through and want to understand if a candidate capable of delivering ... 11 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Jun 19, 2018 今天6天 7时 $3090
EFM32 PID + Bresenham algoritm realization Need to modify a PID + Bresenham algorithms for EFM32 microcontrollers possibilities (EFM32GG11 to be exactly) to regulate the power of the heater through skipping AC periods. The explanations should be pleasant and understandable, without a special termins or anything else. Usefull links: [login to view URL] Hardware probably is not needed, just coding. 2 工程, 电子, 微控制器, 编程 Jun 19, 2018 今天6天 2时 $196
Extract Sevcon Controller information(CAN-bus protocol) Hi, I am looking for a highly experienced Embedded systems engineer to do prepare a firmware for me. We are building a Electric motorcycle. I need someone who knows about CAN-bus protocol. We are fetching information from the battery (24 cells of each 4 volts), sevcon motor-driving controller, and EVCC (charger controller). We have completed fetching CAN data from the battery and need data from th... 12 电子, 微控制器, PLC 与 SCADA, 电機工程, Arduino Jun 18, 2018 今天6天 1时 $4733
PCB Board and iOT device design for e-scooter =We are building an e-scooter sharing company with a mobile app and are looking to build and iOT device that will be attached to the scooter. The device will likely have network communication, GPS, and bluetooth. Some other details are as follows: * Our mobile app will set a locked/unlocked status for the scooter on the server, and the iOT device should be able to listen for the state change. ... 22 电子, 微控制器, 印制板布局, 产品设计, 电路设计 Jun 18, 2018 Jun 18, 20185天 23时 $557
GNSS multipath mitigation receiver on matlab GNSS multipath mitigation receiver on matlab or python/ or any other platforms . What i am looking for is an engineer with knowledge in digital signal processing , that can build code tracking loops using any platforms , matlab is preferred . please look at the attached paper , the system designed is exactly what i am looking for , if someone could write a code that code produce the error envelo... 22 Python, 电子, 矩阵及数学软件, 电機工程, LabVIEW Jun 18, 2018 Jun 18, 20185天 21时 $17999
Controller using Battery Power for Induction motor Design a controller which will drive induction motor (100 kw) off Battery bank with frequency up to 300 hz. The required voltage is 400 V, 300 hz. You are free to design Battery / Cell arrangement to get required output and also the type of battery use e.g. li-on or polymer or something better... 9 工程, 电子, 机械工程, 电機工程, 电路设计 Jun 18, 2018 Jun 18, 20185天 18时 $871
Microcontroller Programming Hi, I am have an ARM Cortex STM32F103C8T6 and voice module WTK6900B01that I need to have programmed for pcb. 24 C 编程, 电子, 微控制器, 电機工程, Arduino Jun 18, 2018 Jun 18, 20185天 17时 $2112
need an expert in motors electrical motors expert needed to work on some drivers 12 工程, 电子, 矩阵及数学软件, 电機工程, 电路设计 Jun 18, 2018 Jun 18, 20185天 15时 $139
Storage locker software The project: Creating the software for a storage locker. The software allows users to choose a storage box, set a PIN and store their valuables in it. Afterwards, they can open the box by re-entering their PIN. ---Required skills--- * Strong UX / frontend-skills * Java (or another Android-compatible programming language) * Controlling an electronic lock (serial port instruction) * Password/P... 34 Java, 电子, Mobile App Development, 安卓, 软件构架 Jun 18, 2018 Jun 18, 20185天 15时 $11013
Need design advice for a simple electronics project (microcontroller + wires + transistors) I need some design advice for my first electronics project: The goal is to control the power supply of the indidual bays of a hard drive backblane. [[ See attached image first ]] The MCU should control 15 identical switches. Communication between the MCU and the host PC should happen via USB. USB should also be be used for the power supply. The whole design should be optimized for minimum power... 19 电子, 微控制器, 电機工程, 印制板布局 Jun 18, 2018 Jun 18, 20185天 14时 $245
THE STUDY OF LOW ENERGY OBJECT USING A THERMOGRAPHIC SYSTEM OF IMAGING AND PROCESSING DATA FROM THE IR CAMERA. i need to design the object in low level energy by using vigo camera [login to view URL] above images shows the task how 2 design 13 工程, 电子, 矩阵及数学软件, 机械工程, 电機工程 Jun 18, 2018 Jun 18, 20185天 13时 $4076
Need a 3 Phase Inverter Designer Electrical Engineer 3 phase Inverter for [10hp] Motor 110V 60hz please only bid if you have experience in this field my budget is fix and i will provide details only to winner bidder so make sure you add + you experience and previous work details [related to VFD] dont forget to write proposal. thanks 15 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Jun 18, 2018 Jun 18, 20185天 12时 $227
SSI encoder reader software for Arm cortex Software for reading encoder with SSI protocol is needed for ARM (prefably STM32F407G-DISC1 or EK-TM4C123GXL cards). A software for position reading in every 200ms (or more) for an SSI protocol with different brands and bits is needed.. The position information should be send with a common protocol (RxTx, I2C, RS485 etc.). Technical Details - SSI encoder position information with (a touch of butto... 6 电子, 微控制器, 软件构架, 嵌入式软件, 软件开发 Jun 18, 2018 Jun 18, 20185天 10时 $1342
Build Arduino/LED strip mask/helmet project Hello everyone, I want to build a helmet/mask with aled strip on it so I can display multiple messages with my phone and still see through it. Basically something like this: [login to view URL] and [login to view URL] and [login to view URL] I need to see through the mask even when there is the led text displayed. Can you please tell me your price and timeline you need ? Can you make it ? How ... 12 电子, 微控制器, 电機工程, 印制板布局, Arduino Jun 18, 2018 Jun 18, 20185天 10时 $1127
need code alignment in my Arduino project Code (A very small work) PROJECT IDEA COMPONENTS 1. Water flow meter 2. Arduino 3. LCD 4. Relay 5. Solenoid Valve 6. Think speak 7. Speaker Detailed Description: 1. When water flows , the water flow meter should measure the pressure of water in liters and the information about how many liters of water is consumed should be transmitted to think speak 2. For the first four minutes , the water should flow and the music ... 21 C 编程, 电子, 微控制器, Arduino Jun 18, 2018 Jun 18, 20185天 9时 $209
SMART ELECTRIC METER WITH MQTT (For Home And Solar System) A card with a 16x4 LCD screen that sends data from the current sensor using MQTT and has remote relay control. There will be 3 internet connection protocols. (it will be 2 protocol WIFI and GPRS) - ENC28J60 will be used as a wired internet chip. - wireless ESP8266 or ESP8285 antenna chip can be used. (It can also be in the form of a ready-made module.) - Sim card and internet connection. - The s... 8 电子, 电子表格, 电機工程, MQTT, Internet of Things Jun 18, 2018 Jun 18, 20185天 9时 $1601
Wireless network. It is about TSCH Mac implementation in contiki OS Freelance Project to be done in wireless network. It is about TSCH Mac implementation in contiki OS 2 C 编程, 无线, 电子, 思科, 网络管理 Jun 18, 2018 Jun 18, 20185天 7时 $128
Infrared Motion Detector Want a device based on infrared or laser technology which can sense motion in day or night and send alert on mobile or sms and create a sound of at least 100 db 7 电子 Jun 18, 2018 Jun 18, 20185天 7时 $624
consultation for Apps, AI, 3D, VR, electronics consultation for Apps, AI, 3D, VR, electronics 4 电子, CAD/CAM, 产品设计, 软件开发, 人工智能 Jun 18, 2018 Jun 18, 20185天 5时 $761
I Need an Electronics Service Engineer in Delhi We are the manufacturers of Electric Vehicle chargers. We are looking for Service Engineers in & around Delhi and Noida surroundings. 1 电子 Jun 18, 2018 Jun 18, 20185天 5时 $895
DIY Tracker Maker Looking for someone who can make modifications in existing electronic devices such as GSM tracker, or build a new one using Arduino/Raspberry Pi modules 35 C 编程, 电子, 微控制器, Arduino, 低功耗蓝牙(BLE) Jun 18, 2018 Jun 18, 20185天 3时 $345
Arduino and stepper motor simple task Hello. we are looking to prove a proof of concept. We want to open and close a door with a stepper motor and a Arduino. The idea is tha we need to have the door to be safe. How can we make the steper motor to stop if some one puts their hand between the door and the frame? we cannot use IR sensor or anything on the frame of the door. I was wondering if somehow we can read when the motor is bee... 51 电子, 微控制器, 机械工程, 电機工程, Arduino Jun 17, 2018 Jun 17, 20185天 $8658
MediaTek based android board Mediatek processors are known to be powerful and inexpensive. Thus, we need a minimum viable hardware that runs Andorid OS with 4G connectivity using a Mediatek mobile processor. This job requires a contractor that has previously developed a hardware based on Mediatek processor with cellular connectivity. This job requires a contractor that has access to technical information of Mediatek Inc. Plea... 20 无线, 电子, 安卓, 电機工程, 嵌入式软件 Jun 17, 2018 Jun 17, 20184天 23时 $37105
STM32F103 RTOS Firmware Development (Keil + STMCubeMX) I am looking for a person to get the firmware for my PCB done, here is what I need: RTOS Can Bus USB Device (Vcom) Wake up and sleep on interruption Start your message with the text Truck Project PCB so I know you read the whole description 2 x UART comm 6 x GPIO control 2 x GPIO read 5 ADC read 2 x User button read Control 0.96" OLED I2C LCD (write code considering special characters, not ... 12 电子, 微控制器, 电機工程, 印制板布局, Arduino Jun 17, 2018 Jun 17, 20184天 22时 $1068
工程, 电子, 机械工程 Jun 17, 2018 Jun 17, 20184天 20时
Project for Bijan M. im making a PCB for ESP8266. i buy a lot of SP6201EM5-L-3-0/TR (Fixed Low Dropout Regulators(LDO) SOT-23-5 RoHS) Page: [login to view URL] I have other: LM1117MPX-ADJ (same but regulated). Page: [login to view URL] I wish use this for down voltage from 5v to 3v and i have questions about usage and wiring. and another questions and PCB making. Thanks 1 工程, 电子, 微控制器, 印制板布局, , 电路设计 Jun 17, 2018 Jun 17, 20187天 18时 $78
Longlight Firmware Hardware description Light source: 1 or 2 ledstrip SK6812 (similar WS2812) with individually adressable leds. Ledstrip can be RGB, RGBW or WWA (wharm white and amber) Length 1 m (144 leds) or custom specified Microprocessor control board: Teensy LC or alternative Resistive touch strip with two channels, connected to analog inputs of Teensy. Touch strip has same length as ledstrip. At each end of ... 11 C 编程, 电子, 微控制器, 电機工程, Arduino Jun 17, 2018 Jun 17, 20184天 18时 $1633
PCB Design, Analog Audio circuit expert, KiCAD to Eagle I'm looking for someone who is expert in PCB Design especially in Analog Audio circuit It's a simple circuit -Through hole converts to SMD -Reducing the noise of the circuit -KiCAD to Eagle I need someone professional who can improve the design I will provide you more details 24 电子, 微控制器, 电機工程, 印制板布局, 电路设计 Jun 17, 2018 Jun 17, 20184天 17时 $1327
Adapt PCB from Eagle to KiCAD and increase perfomance Adapt PCB from Eagle to KiCAD and increase performance from current 80A to 200A with peaks of 400A (specify heatsink for the design). Theoretically, used MOSFETs (FDMT80080DC, two in parallel) should be capable to handle 200A requested currents if they are cooled properly, but heatsink must be calculated. Also the Würth press-fit elements are already capable to handle 200A in theory. Probabl... 12 电子, 电機工程, 印制板布局, 电路设计 Jun 17, 2018 Jun 17, 20184天 16时 $1639
arduino pcbdesign eagle need arduino mega 2560 eagle design 40 电子, 微控制器, 电機工程, 印制板布局, Arduino Jun 17, 2018 Jun 17, 20184天 15时 $1162
Need Help to interface 100 Proximity Sensors with Arduino/other to Python Application We have a hardware device that has 100 ports. We have an issue where if we plug in a device into the port, and if the device is bad it may not communicate to our software, so we do not know the port is occupied or not... We were thinking about adding a proximity sensor to each port/bay that can let us know if there is a device added to the slot, and if the software doesn't recognize the d... 26 Python, Linux, 电子, 软件构架, Arduino Jun 17, 2018 Jun 17, 20184天 14时 $4043
Help me to fix my ADC in VLSI project Hello, I have made a SAR 8 bits binairy coded ADC using method of 2 steps Successive Approximation, but it is a bit buggy. I need very experienced engineer in this field, otherwise it would just be loosing time. The simulation must be done in Cadence Virtuoso 6.x Thanks ! 0 工程, 电子, 电機工程, 电路设计 Jun 17, 2018 Jun 17, 20184天 14时 -
intruder system using pic or arduino System need to generate alarm when any motion or movement detected by it during specified [login to view URL] should send sms to specified number when it detect movment. 27 C 编程, 电子, 微控制器, C++编程, Arduino Jun 17, 2018 Jun 17, 20184天 11时 $31
An electronic device prototype that can upload data and images to the web I have an idea for a product which will consist of 3 components. The data that the 3 components collect need to then upload the data to a website. 17 电子, 产品设计 Jun 17, 2018 Jun 17, 20184天 10时 $2224
Create a pattern plot for an output signal taken from an antenna array. It is desired to create a pattern plot for a signal received by a matrix of 8 antennas. The signal is processed using Root Music to determine the reception angle of the useful signal, and for beamforming   is used MVDR. The simulation is created, the signal must be taken over and entered into a pattern plot. 9 电子, 矩阵及数学软件, 微控制器 Jun 17, 2018 Jun 17, 20184天 6时 $283
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