Circuitεργασίες

I am trying to work out a bespoke electrical circuit for a slave / tandem heating system which includes a gavity fed standard Y configuration CH and HW gas boiler with a mid port valve and now a slave pellet boiler stove. The pellet boiler stove has an integral pump which activates when the water in the boiler reaches 70c. At this stage I want the system pump to be activated and water to be pump into the HW cylinder until the cylinder thermostat reaches 70c at this stage the mid port valve would activate both grey and white wires to dump ongoing hot water into the central heating. Importantly I want it to do this using the existing system pump, mid port valve and cylinder thermostat that is part of the gas system. It is the case that the two ststem will not run at the same time....

My project consists in a circuit board which is responsible for communicate with the internet and triggering 4 electronic locks of 3V 1.5a using relays. Due to high inductance generated by the electronic locks, it is necessary that the circuits of the locks are isolated from the microcontroller circuit to avoid crashes/bugs. The board must have a circuit of lithium battery which must provide an autonomy of at least 8 hours. This circuit will be activated when the site is without power. To connect the ESP32 to the internet, a 4G modem is connected to the board. The board must have a female USB connector to power the 4G modem. The female USB connector must have a circuit capable of having its power interrupted by a command sent by an ESP32 I/O p...

I am building an animated Halloween prop that will have lights, sound, and vibration. It will be triggered by a motion detector. I am unable to figure out how to configure the electronics of this simple prop because there is too much voltage drop between components. Input voltage is 5vdc...motion detector; (2) 5vdc LED strip; (3) Icstation Recordable Sound Module; and (4) two Mini Vibration Motors. All four components need 5vdc to operate efficiently. I also have some MT3608 voltage regulators and 1-channel relay modules, if those will help. I just need someone to draw up a schematic from which I can put something on a project board, test it, solder everything together and put the circuit board into a project box with leads to the various components. (I ADDED A JPEG FILE TO HELP ...

Hello Iam looking for a long term help with electronic circuit design. Most of the help will be inform of online discussion and implementation. Most of the payement will be inform of hourly payment. The first task that I need help with is to simulate with LTSPICE or Matlab a circuit that have a 24V battery. This circuit will have some loads Another 12V that is connected to this 24V and getting its charging from it. It has also some loads. In the end, there will also be another 24V battery backup system for the connections above. Please do not bid if you are not a knowledgable person on Electronics so we dont both waste our time. There are alot to do...

Hi, I need to get the circuitpython library for my device into the circuitpython community bundle The instructions are here Are you able to do it?

I have an RGB rope light that runs on 100 v DC. The lights have a common positive and the red blue and green are controlled by the negative. It came with a little remote control box. I want to control each color with a separate dimmable 120 V AC . Attached is pdf of how the existing circuit works and how I need it to work

Creation of a simple application for controlling the LED strip via smartphone. This is a project in which it is primarily necessary to turn off/on the led strip, its level of brightness, timing the lighting and extinguishing of the strip with a percentage increase. Alternatively, different programs for a light show, or lighting/flashing according to music. For now, it is a 5V sing...project in which it is primarily necessary to turn off/on the led strip, its level of brightness, timing the lighting and extinguishing of the strip with a percentage increase. Alternatively, different programs for a light show, or lighting/flashing according to music. For now, it is a 5V single-color led strip. A wifi or bluetooth module would be used as HW, which will be a component on the printed circuit...

Build an Arduino controlled four channel Tens / EMS circuit board. Four Channel - Each channel will provide independent control around the following parameters: o Each channel to be connected to two electrode pads. o Each channels requires electrical isolation between each other channel. o Adjustable Frequency (1-150 Hz) o Adjustable Intensity set between 0-120 mA at 40-100v. o Adjustable pulse duration between (100uS and 300uS). o Adjustable Sequence and duration on/off as per channel timing xlsx - attached. • Adjustable Overall intensity (all four channels simultaneously) • USB powered preferred (5V)

I would like to have my logo in a black metal style, but instead of organic "thorns" I want electronic/circuit board-ish. I want to see one advanced and one cleaner.

Παρακαλούμε Κάνε Εγγραφή ή Κάνε Είσοδο για να δεις λεπτομέρειες.

Hi all. Using the Arduino IDE, I need to use a microchip SAM L21 MCU in my circuit, with a Watchdog feature. Unfortunately , the watchdog setup is well documented on the SAMD21 chip (lot of tutorials and sample code online), but not on the SAML21, which differs on the internal clock used (if I understood correctly). So the project is the delivery of a functional watchdog code for a SAML21 in arduino, including any necessary original or modified libraries (a good library example of WDT library for the SAMD21 is ) You don't need to have access to a SAML21 hardware, just to provide a functional code that compiles with no error. Technical info : the Arduino board manager uses the following board library :

-Write a VHDL file for an 8-bit counter with active-LOW asynchronous clear, active-HIGH synchronous load, active-HIGH count enable, and a directional input that makes the circuit count up when DIRECTION = 1 and down when DIRECTION = 0. - Write a set of simulation criteria that verifies the operation of the counter. The simulation must contain one complete cycle of the counter and test all functions. It must show that the synchronous load really is synchronous and that the clear has precedence over load, which in turn has precedence over count enable. -Write a VHDL file for a two-digit BCD counter with active-LOW asynchronous clear, active- HIGH synchronous load, and an active-HIGH count enable. -The counter must count up from 00 to 09, then 10 to 19, and so on until it reaches 99. A...

The purpose of this project is to develop an e...Sensing Tech. BS-612 smart PIR modules with an Adafruit Feather M0 microcontroller development board. The integration will allow the sensitivity of the PIR modules to be independently controlled via AnalogWrite PWM. The scope of the project is delivery of a working schematic design. No Arduino code is required. No PCB layout is required. Acceptance will be based upon the results of breadboarding the circuit and confirming functionality. This project will be the first in a series of many electrical engineering projects that will ramp up as product development accelerates. About me: I'm a "FAANG" software engineering manager working on a little stealth startup for cool toys for people who like trees and rocks a little...

I want to create a gerber file from a circuit diagram which I will provide. I want recieve a schematic and gerber file.

Need a logo for my company. (Think circuit.) Name: Parallel Formula - Tagline: Contract to Close

Name of the Tour - All American Poker Circuit Colors - Red White & Blue (Not Required - Just a suggestion) Mascot - Eagle We would like a very high end looking logo that commands majesty and prestige. Remember, this is a poker tour so card suits are acceptable as well.

I just need a quick measurement of the pull up and pull down resistor. Such as when the limit switch is open or closed. I need measurements of the volts. That’s it plain and simple. Only $5

Design Axcel Flux Moter We are working in EV sector so we need a best design of Axcel Flux Moter, we need entire design with controller circuit and all things

Proofread and if possible improve the clairity ...Bonus points if you go beyond proofreading and add quality to the contestdocument. 20 page minimum 40 page maximum. If good enough i will likely have much more documents to pay you for in the future. I will upload "performance samples" case law and the academic common fact pattern that students will use to learn what documents are commonly filed in an immigration case for the bia and the 7th Circuit. Foreign attorneys preffered. You are encouraged to open up free trial accounts that can help you. For example can write basic pargraphs for you, Emphasis on the legal concept of "Particular Social Group" I will answer any questions you can come up with. I will monitor the project closely twice a day until ...

must have an excellent research experience!!! My requirement for the smart grid: Mode of operation: Islanded and grid ...methods and types to be clearly used: Droop and Master sleave. Optimization method: Conjugate Gradient to minimise the cost of the energy. Energy sources: Grid, PV, Wind and Energy Storage and (Backup Diesel Generator when faults or disturbances occur to the system). Stabilise the voltage and frequency in both modes of operation. Mathematical modeling: state space representation of the equivalent circuit of the microgrid. deferential equations and transfer functions used in the components of the system such as inverters, Boost, bidirectional converter and others. Loads types: AC, DC. To write a professional research paper. See the attached. Software use: MATLAB...

Hi Andrei-Antonel V., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

Need to make a simulation and implement a novel more advanced multiplier circuit. It would be preferable if FPGA is used. It should then be documented properly

Develop schematics for an induction heating circuit controlled by a GPIO pin on ESP32. The circuit must be able to be current controlled and operate at a variety of different voltages. We are looking for an experienced electrical engineer with knowledge in current-fed inverters, LC-tanks, PID, mazelli oscillators, royer ZVS circuits, etc. to make schematics for such an induction circuit. Once an NDA is signed we can provide more information on the project.

This project is for designing a pcb in which the main purpose is filtering magnetic interference. Project Includes Schematic Design, PCB Design, BOM Validation, Gerber Production etc.

...school degree or equivalent; 2 year related technical degree in electronic engineering or technology is preferred. Exhibits understanding of technical specifications to assist in the selection of semiconductor, electromechanical and optoelectronic components. Exhibits proficiency in the use of block diagrams, schematics, test equipment, and test procedures to analyze and troubleshoot printed circuit board assemblies and sub-assemblies. Ability to understand verbal and written communication of electronic applications and components. Ability to effectively present information and respond to questions from customers, groups, or public events. Proficient PC experience, including Word, Excel, and other software. Excellent at written and clear verbal communication on ...

I have a hand held, battery powered, self defense device that has a 20 year old PCB. I am looking for someone to update the circuit and components. I do have a circuit drawing.

i want to launch new quadcopter so i need a pcb circuit design and 3d drone body design in cad

Motor Details 1. No. of poles. - 48poles 2. No. of windings- 37 3. Stator radius- 210mm 4. Height of motor- 38.1mm 5. Design configuration- Star 6. Volts- 48/64v 7. Amp.- 30A We want a circuit diagram of a BLDC controller these are our basic details of motor no. of position sensor is 3 in motor we also want it to be totally independent from other company design as we don’t want any kind of legal issues regarding the design we have the code for the controller , the code is run on an Arduino and take input from position sensor to alter the speed of motor and to control the direction.

We need a design of the interior structure of a vibrator. According to IEC 60704, the noise level of the vibrator we want should be under 40 dbs; Portfolios involve the use of eccentric gears are not allowed, please think about other ways to design this vibrator; Since the design will be applied to vibrators(sex toys), the motor and the drive circuit should be as small as possible.

We need a design of the interior structure of a vibrator. According to IEC 60704, the noise level of the vibrator we want should be under 40 dbs; Portoolios involve the use of eccentric gears are not allowed, please think about other ways to design this vibrator; Since the design will be applied to vibrators(sex toys), the motor and the drive circuit should be as small as possible.

We have a file we think is in Proteus project format but we dont use this ourselves. We would like the project opening and output to either a pdf to show the schematic circuit diagram, or perhaps converted to a freeware viewer we can read. We dont know what is in the file as we don't have the software ! It might be nothing useful. No other work is required, you just need to have Proteus or something that can read the file. I will send when project awarded.

hello need some one to help us to build fire phone telephony system addressable by send data over power to can communicate between master and slave like this in concept output must be : 1-pcb design for master and slave 2-bill of material for master and slave 3 circuit design

...the power supply (phase1), however look for option (preferred) to have a DC-DC stepped up at each BE dot (phase2). Controller circuit: • Use of Bluetooth or other short range remote control to the BE Dots (phase2) • Through a programable interface individually control each BE Dot independently 1-10 phase1 (up to 1000 phase2) BE Dots • Multichannel scalable approach • Simultaneous and independent control of each BE Dot. • Control each BE dot (1-150hz Frequency) (20-100v Intensity – 0-120ma) (100-300uS Pulse duration) (1-10sec Overall Duration) • Controller should use one control wire and earth if possible (phase1) Build a miniature BE Dot (as small as possible) circuit board • A BE Dot will provide a controllable stimulation (mo...

The equipment in question is and an Auger Mining machine and an Exploration Drill Rig. It is all hydraulic and electrical controlled. We need a drafts person to update and modify the existing hydraulic and electrical circuit drafting along with the BOM (Build of Material) list. We have all circuits on ACAD LT. file. We've estimated about 500 hours

PCB design for a scale with a 4G module to send results to WebServer using HTTP Post. Circuit is intended to be powered from battery with a support of solar panel. MCU will STM32 and 4G GSM module will using SIM7000

I need help selecting IGBTs and designing the circuit and electronics for an induction heater which is 2500kW, variable from 100kHz to 1MHz.

We have approximately 100 Fortinet firewalls that need the following maintenance activities done. Ideally the same guru could help to complete similar additional tasks every 90 days. Update Fortinet OS Convert all policies from flow mode to proxy mode Setup SDWAN for all outbound traffic based on Standard Update the standard security profiles and names for Web filt...that need the following maintenance activities done. Ideally the same guru could help to complete similar additional tasks every 90 days. Update Fortinet OS Convert all policies from flow mode to proxy mode Setup SDWAN for all outbound traffic based on Standard Update the standard security profiles and names for Web filtering Application Control and IDS/IPS Set WAN interface speeds to match circuit size Resource us...

We are upgrading the bandwidth of Aryaka circuit and BLD site and engineer need for Hand and feet support. ONSITE 12th September 4 hours role. Site: Bar Le Duc

We want a short clip of under 30 seconds promoting kibo lounge as a location for F1 The video will focus on Sunday 4th Sept 2022 on Circuit Zandvoort Dutch grand pros but editable to other circuits Very catchy capturing the logos of the big F1 teams like Mercedes, Ferrari, Renault , redbull , Mc Laren etc etc Important to have our logo transition in and out of the promo video Best sound , best service , best food in town or optional catch lines

This project should only take 3 days. It is a re-design of a product with a new microchip. We have re-designed a circuit board using a new microchip. This requires us to rewrite part of the existing code. The code required is C++.

Transistor keeps failing on circuit board for small refrigerator. Need help selecting upgraded transistor or other option? Detailed pictures of board, no schematics.

I want programmable circuit which let me program the sequence of LED lights. For example 5 output ports. i want 1st port to blink for certain time then move to port 2nd and like wise.

...want that reflected in the image. Image size:1000px x 585px (minimum) We are looking for an image that represents our two companies working together to provide mission-critical database security to the world’s largest financial institutions. No locks of any kind, no chain-link of any kind, no combinations, no safes, no handshakes, etc. No pictures with robots, no electronic brains, no printed circuit boards, no fiber-optics. THE ARTICLE IS ABOUT DATABASE SECURITY!!!! Please think beyond the usual partnership cliches. Stock photography may be used but please don't just submit someone's stock picture. We want an illustration that fits our concept, not simply clipart. Please DO NOT include any text in the illustration. If the image has text it will be reject...

Need to program an existing microcontroller based circuit board from scratch according to the defined logics. The basic outline of requirement is to collect the data sets from other devices connected to this board via RS485/232 and transmit the data to internet through gprs device. Vice-versa the same can be received back from a software application program and be used for running the logics in the microcontroller.

Hello, I need an OrCAD professional to convert a sketch of circuit into OrCAD PCB files. The deliverables include at a minimum SCH, PCB, BOM, PICK AND PLACE, FOOTPRINT and GERBER Files.

A STM32F4 eval / discovery ( such as STM32F429I-DISC1, but also similar develop board) generates a PWM to controls a H bridge to driver a DC motor. The motor includes also two hall sensors: the MCU reads...communicate to the MCU how many pulses is the race of the motor. The setting up of the number of pulses, ramp slopes etc can be done via a simple PC interface (ieg Pyton or something very simple) that send via serial/USB or CAN port those parameter. This is a pilot project. The final job will be more complex and complete: this project will be updated with a CAN OPEN fieldbus, a more complete encoder circuit and some other accessories. The job consists to write and to provide the source code, the tested binary code and so on. About the hardware: we will arrange a solution to be ...

We need a design for a 250 V DC, 0 to 15 Amps DC with 0.25% ripple using a high frequency transformer for 100% isolation from mains. Short circuit protection at 20 amps maximum. The same power supply to provide 8 x high frequency transformer outputs for 15 Volts DC 1 Amps, each individually isolated from each other and mains. With short circuit protection. 4 x 5 Volts DC 1 Amps outputs, isolated from each other and mains with short circuit protection. This is all one unit and smd as far as possible. We need shunt resistors on each output for current measurement purposes. The design consists of circuit design and Proteus or other simulation and PCB layout. Video of simulation required.. The overall dimensions to be as small as possible. 50 % duty cycle is accep...

I want you to write "EVD" at the beginning of your application to detect fake offers! We are looking for an Embedded Software Engineer who will develop software with C++ on the electronic circuit we have developed. We can work on a project basis and for a long time. Function of the card: It has 24-45V input range. There is one MCU (Novuton, Atmega or STM series) on the circuit. There are ESP32, BLE 5.0 sensor, Quectel EC25 modules connected with MCU. Internet will be accessed with Quectel EC25. Communication will be made on the circuit in protocols such as MDB, ccTalk, Executive, Dex, VCCS, RS232. With ESP32, internet access can be provided via Wifi. In addition, some data will be recorded with an integrated sd card or rom with MCU. Features - MDB Protocol...

I have a circuit board which needs to be redesigned with upgraded components and ics The project head needs to have knowledge on upgraded parts. Require gerber,BOm and schematics for the same

Deadline: 5 days PLC and HMI Programming required (no commissioning)