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!从74,093个评价中，客户给我们的 Electronics Engineers 打了4.83，共5星。
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Drop and hook trailers. On some trailers with LED lights turn signals don't work when engine is running. With engine off all works fine. 1 year old Delco Remy 36S1 model 8600127 with remote sense. Elog connected to diagnostic port detecting high voltage spikes up to 14.94 volts. Dealer recommended to replace alternator. Is there other options? Is there a way to reduce alternator voltage (adjustable voltage regulator)? Also not a big fan of remote sense. What if batteries are not perfect, alternator will run max voltage all the time? What alternator make and model with adjustable voltage regulator and no remote sense will fit my truck?
This project is based on ESP8285 microcontrollers and programming should be done in Visual Studio Code (PlatformIO) Background: This is supposed to be a monitoring system. It involves detecting sensor values at multiple locations (at least 25, with more to be added, on demand). Each sensor location is connected to an ESP8285 wifi board on UART1 (soft serial). All of the 25 individual wifi modules will connect to a central hub - which is another ESP8285 module. This central hub will be connected to a cloud server through a broadband router. It will send the data of all the 25 sensors to the cloud server. The cloud server will also reply back some data which needs to be transmitted back to the 25 sensor modules. Based on this data, the individual 25 sensors will perform some action, like ...
We need an electronic engineer who can do embedded hardware development, writing, harness, and control panel design. Freelancers from Delhi and who can visit Delhi will only be considered.
Circuit should be of 4inch by 3inch with memory card (memory card cannot be acessible from outside it should attached with pcb inside its case,hence we cannot remove from outside so there should not be any slot ) Feature of wifi and bluetooth. power supply 3.7v 3200mah rechargeable battery, TFT and endoscope camera. TFT comes with 54 pin details will be shared and camera comes with 4 wire selection of microcontroller should be affordable endoscope camera should be used for streaming live video. endoscope camera(camera comes with its own module ), no need to develop extra components for it . camera should be drag outside with wire away from the pcb (length of the wire will be of 8 inch). there will be on/off button ,backward and forward button, wifi button. programming required for run...
Looking for Altium PCB design professional, who can design PCB from the schematic, and prepare the BOM list for the SMPS power supply. Since it is 400V DC applications, the PCB should design suitably in professional way.
I need a code for arduino and the language is c++ for this project: Our project is an automated pillbox: It has arduino uno wifi, LCD I2C, keypad 4*4, buzzer (alarm), 2 IR sensors, 2 micro servo motors. 1- the patient will set the pillbox he will enter date/time. 2- he will choose number of medications (1 or 2). 3- he will enter the time and number of pills for each medication. 4- when it’s time to take medication 1 alarm will go on until the patient press the button on the keypad. 5- the door of medication 1 will open using micro servo motor. 6- there is IR sensor inside the compartment of medication 1 to sense the medication has moved or not. 7- the patient has to conform taking the medication if yes number of pills for medication 1 will reduce by 1 and upload to the cloud. 8- aft...
Hi, We need to design and develop IoT devices that must have following features: 1. Humidity Measurement 2. Temperature Measurement 3. Accurate Location using GPS Further details will be shared with selected freelancers only. PLEASE BID IF YOU HAVE DESIGN AND DEVELOP SIMILAR PRODUCTS BEFORE. Thanks
Looking for PCB designer Professional in Altium Software upto 8 Layer PCB. The partial work has been done the pending to be done.
I need help creating a custom DIY bark repellent device. It can be based on Arduino, Raspberry or pure electronics - Raspberry and Arduino being the best as they can be easily updated or programmed. Anything I can find on the market are small toys without the much required power. It has to use larger loudspeakers - not the tiny kind you see in any bark repellent It has to allow change of frequency (as in adjusting for a specific dog/animal). From what I understood it has to emit ultrasonics around 20kHz-25Khz (in case of dogs) so it is not a such complicated device but I need someone to think about all these aspects and compatibility of the electronic pieces. I have very good coding skills and some basic electronics knowledge so I will be able to provide feedback and help with anything...
Utilizing the Arduino Mega Run Multiple sensors, one after the other to display their output on an LCD screen. using sensors 2 ea Gravity SEN0308 analog capacitive soil moisture sensors to be set in different planters. 1 ea Gravity SEN0249 Analog pH sensor 1 ea NPK (nitrogen, phosphate, potassium) sensor through a RS-485. 1 ea fermion - Temp, Humidity(SHTC3), pressure (BMP280), AMbient light(VEML770), UV light(ML8511) Breakout (I2C/UART) or if this is a problem sensor as I am finding no singular programming for it, then I can just use 1ea Gravity UV sensor SEN0162. I am trying to connect all to bluetooth via a Gravity BLE sensor beacon, through a 6 in 1 USB to serial convertor(TEL0149). Besides the serial viewing of the readings, need to view output on either a 1...
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Our company is looking 4 electric engineer the design a cable system for solar pane • 8,16,32 string configurations that will be connected to a junction box. I am attaching an similar product for understanding
Desarrollo del software para la placa Sipeed Maix Amigo AI IOT, donde se necesita que sea capaz de reconocer personas amigas, intrusos, controlar cada 5 minutos si una persona sigue estando en la camara para reconocerla, etc. Las funcionalidades se van agregando de a poco para progresar en el proyecto. Tambien se usará el WIFI y el Bluetooth del dispositivo para utilizar una aplicacion. Se reciben las ofertas para conversar.
Looking for electrical engineer having knowledge of batteries and procedure of UL certification. candidate should have knowledge of battery safety standard required for UL certification. More details will be provided on chat.
I have 24 bare circuit boards which need assembling. There are a range of components to solder, but most are SOICs or 0805 parts. No BGAs, QFP or other fine-pitch components. Looking for someone who can do this assembly in their own location, preferably near Milton Keynes in the UK. Must follow anti-static precautions and best practice. Likely to be around 70-90 hours work in total.
I want a PCB, that would include 2 sensor connection with raspberry pi+GPS module+Battery.
Need an engineer to establish a link between two LoRa Microchip Motes (RN2483) at 43mHx and 868MHz. At least 10km open air distance required. All code, setup and design methods to be supplied back to the project owner. The project will later involve PCB design, firmware development, and cloud computing to create a full online IoT platform and basic sensors working via LoRa.
I am looking for assistance with building and programming a food delivery robot. The robot should be able to carry up to 40kg with a range of 30km and a maximum speed of 20km/h. The robot will be manually piloted from an office, and it should have the ability to deliver food to specific locations. MY BUDGET IS NOT MORE THEN 100$ The robot should have the following capabilities: Delivery box unlock Delivery box Lock View light on View light off Headlight on Headlight off Taillight on Taillight off Speed Limit Alarm on Alarm off Record video front and rear cameras Take picture front and rear cameras Vehicle power off Vehicle power on I have already selected the following components: Motor: 24V 300RPM DC Brushless Planetary Gear Motor with Adjustable Speed Reversible With Brake And C...
Hi Everyone, I’m looking for an experienced ESP32 SW engineer to create a wireless file transfer tool. I have an ESP32 connected to a Teensy 4.1 trough SPI and Serial port bus and I need to transfer some files stored on the Teensy SDcard over Wi-Fi. Each file is around 100MB so SPI bus is the only option and a fast transfer protocol is needed. The code to be written is divided in two sections. 1. Code loaded on the ESP32 to include a small webserver where the user can open a browser and look at the files available on the SDcard and select the one to download. The ESP32 will request to the Teensy to transfer the files (ESP is the SPI Master) 2. Code loaded in the Teensy 4.1 will negotiate with the ESP32 the access to the SDcard. The Teensy will also need to tell the ESP if is curr...
Siren for Police - Programmable Hello we have here a SDF104H from Axixtech Juluen in Taiwan, the problem is this siren have a controller with RJ45 with different buttons and more. Than we have a HRT (Horn Ring Transfer) Signal with PLUS and MINUS, when we give here a PLUS than go only on a HORN SOUND by the Loudspeaker in the Lightbar. We need here the Sound from the Sirenen Button. Which solutions can you offer to change Firmware that the SIGNAL is SIREN ON/OFF? How can we read the Firmware or change this Signal ?
Hello, we need a complete PCB design and component selection. for a camera battery charger. there will be 3 Batteries of Sony camera see image for details. Device should have display to show charging percentage of each battery. we need a professional person for this project.
Infitty ps410 Powers up but no sound Might of had a power surge?
Hello everyone! we need to develop new product and will hire some engineer for that. Thanks.
I have indoor grow tent, with multiple citrus trees, It runs an exhaust fan, 4 air moving fans, 4 lights, 2 heating pads, and an irrigation pump, I currently run most of the items off of a wifi power bar (geeni surge 6) and the exhaust fan runs via its own controller with temp and humidity settings. The irrigation pump is supposed to run off of a wifi based application (the app no longer exists) I am looking into the idea of getting a raspberry pie and running the entire system off of that with some programming. I would have to regulate on/0ff times for lights and exhaust fan and also integrate a run cycle for the irrigation pump. If anyone has any insight into this tye of system please lets start a conversation
This project is for an Electronic Engineer and a Circuit Designer. I require speech of 8KHz sampling 8 Bit will do, for 32 messages of differing lengths. The messages will be recorded via a simple Microphone, and uploaded digitally for some pre-recorded messages. A PIC micro should be used and some easily obtainable memory to store the data should also be used. If improved quality of speech can be made by increasing sampling rate or bit count or any filters etc.. these should be considered; but must be low cost.
Build me a circuit with Ldr sensor for streaming audio(microphone) via esp 32, power supply will be through 3.7v rechargrable battery 1000 mah, start with push button and one jack for earphone.
We require a PCB designer to layout a PCB for us. The test circuit has been developed on an STM32 Nucleo-144 MCU Development Board, NUCLEO-F767ZI. You will be required to draw the full circuit based on the development board and then after approval, layout the PCB in accordance with the circuit diagram. I am reposting as time got away with me late last year. Want to award by the end of the week. PLEASE READ THE ATTACHED DOCUMENT. IF YOU DON'T READ I WILL DELETE YOUR BID.
Proficiency in programming languages such as C or C++ Strong knowledge in protocols like i2c, SPI, UART and iso7816 Ability to Emulate any EEPROMS using logic analyzers output Embedded firmware design(Attiny45,PIC16F877A). Excellent debugging skills. Job Type: Consultant Benefits: Flexible schedule Experience level: No experience needed Application Question(s): PLEASE ANSWER Are you able to emulate any EEPROMS using logic analyzers output? Are you able to analyze protocols like i2c, SPI, UART and iso7816?
Hi! I basically need from you to build PCB for prototyping purposes (design that could be easily and very quickly manufactured). I have around 30 micromotors from 1, Constar company and this connector: HRS DF36-15S-0.4V(51) 2, I also have few Maxon "Heavy duty" motors and 3, Flexible PCB with many sensors. PCB should enable connection from above appliances into many motor drivers and controlling boards. Additional requirement is that this PCB should enable us to have extremely fast signals as the whole prototype works on CAN FD with controlling loop 2ms. *Prefered skills in high speed robotics or automotive industry is needed. Please do not apply if you don't have advanced experience. FAQ: 1, When do you need it? Ideally yesterday, acceptable this weekend, negotiable one...
Hello... I want someone who know how to get data from circuit and sensor, i want to get data from weaving machine and want to store that data in central database, i have machine monodirectional interface of machine, let's discuss more if you can help me... Thank you