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    2,000 12v 19v regulator งานที่พบ, การเสนอราคา USD
    Vending Machine Productos de Limpieza หมดเขตแล้ว left

    Hola buen día, Estoy incursionando en el mundo de la fabricaci...productos de limpieza y quiero escalarlo ahora fabricando paneles vending de productos de limpieza. Ya he realizado varios códigos que puedo utilizar, pero por falta de tiempo por otras actividades no puedo enfocarme completamente. Quiero que mi proyecto sea con el Arduino Mega 100%, que acepte Multimonedas, no me interesa que dé cambio, panel lcd de 16 x 2 o 20 x 4, puentes LH298N, Bombas diafragma de 12v, 6 botones para 6 productos diferentes, quiero que haya una interfase de control mediante la botonera y mediante aplicación móvil (App Inventor Android) para que el usuario pueda modificar los precios y los tiempos de llenado. Necesito los códigos fuente de arduino, el archiv...

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    Blockchain and Cryptocurrency Market Analyst หมดเขตแล้ว left

    I am looking for a Blockchain and Cryptocurrency Market Analyst to provide analysis on market trends, investment opportunities and regulator environment. Ideal Skills and Experience: - Strong knowledge and understanding of the blockchain and cryptocurrency market - Experience in analyzing market trends and providing insights - Background in macroeconomics - Proficiency in conducting thorough research and gathering relevant data - Excellent analytical and critical thinking skills - Ability to deliver concise and comprehensive reports in a timely manner

    $20 / hr (Avg Bid)
    $20 / hr การประมูลเฉลี่ย
    16 คำเสนอราคา
    Code for Arduino to open window and turn fan on หมดเขตแล้ว left

    ...turn off the fan. I am using a NodeMCU to control a linear actuator to open the window. The fan will be controlled using a relay. I will also have a rain sensor so that if it's raining the window will close and fan turn off. Main Parts: - NodeMCU o - Linear Actuator o - Motor Drive Controller o - Relay o - 12V AC Adapter o - Rain Sensor (LM393) o Feature: - Turns fan relay on/off - Opens/closes linear actuator - Rain Sensor o Window/Fan should not turn on/open if rain is detected o Window/Fan should close/turn off if rain is detected while running o Window/Fan should not operate again until 30 minutes after rain sensor is clear o Email or text if one of the

    $142 (Avg Bid)
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    ...supply of the measurement device i'm using a chinese 500 mA, 5v solar panel, a replica of the Samsung 18650 battery with 2500mAh capacity and a LDO mode TLV757P (3.3V, 1A). For energy management I'm using a LM2596 regulator to low the voltage at 5 Volts to a TP4056 battery charger. Then, the LDO supplies constant 3.3 volts to the ESP32, LoRa and sensor. For the gateway, I use a 12V, 10W solar panel, with a PMW voltage regulator, a 12V, 7Ah lead-acid rechargeable battery and a LM2596 regulator (to get 5V). The gateway PCB regulates the voltage to 3.3v with the TL757P LDO. The LM2596 regulator feeds a wireless 4G router. Recently I've noticed that I should add a power path with a Schottky diode and a MOSFET after the charger so the...

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    enterprise risk management Report หมดเขตแล้ว left

    I am looking for a freelancer to develop an enterprise risk management report. The purpose of the report is to give the BoD and regulator an overview of the company's risk profile and key risks and our risk strategies. The report should be written in a formal way that is suitable to be read by the BoD and Regulator. The structure of the report is required to be proposed by the risk consultant, and to be developed after approving it. Note: the company has the following items developed and approved: 1. Risk policy and framework 2. risk mgmt organizational structure and roles and responsibilities 3. risk register for all the departments 4. risk profile and key risks 5. key risk indicators 6. risk strategies

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    need circuit for water-activated 12v alarm หมดเขตแล้ว left

    I am seeking a freelancer to design a circuit for a water-activated 12v alarm. The purpose of the alarm is to turn on an alarm/LED light (see attached) when probes get wet. I am open to any suggestions for the circuit design, and I require the supply voltage of 12v. I need a freelancer with experience in designing water-activated alarm circuits, so please provide references and details of similar work during bid submission. (I've attached the specs on the alarm that I need to operate.) I will need a prototype.

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    Trophy icon Product Packaging Design - 21/07/2023 10:29 EDT หมดเขตแล้ว left

    ...Cheddar Cheese" Note:- candidate has to suggest tagline also Product Shape:- Rectangular Packing Type:- Plastic polybag Block Dimensions:- is 12" x 4" x 3.5” candidate has to suggest tagline also *** Following Matter will come on the front side of product*** 1) Not for Retail Sale (Only for Food Services) 2) Ingredients: - a) Milk b)Lactic Acid Culture c)Salt d)Microbial Rennet, Acidity Regulator E-331 & Preservative E-339(ii) 3) Company's Logo 4) Net Weight 2kg (When Packed) 5) Keep Frozen at -18 degree for best results *** Following Matter will come on the back side of product*** 1. Nutritional Value Chart 2. Fat in Dry Matter: > 40% 3. Allergens: Contain Milk 4. Urdu Matter 5. Processed & Packed by Latifia Dairies (Pvt) Ltd. 8-km ...

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    การันตี
    Wireless remote control switch 12v หมดเขตแล้ว left

    I need you to find a suitable project for me. I want something similar to the following: I need it to work at 10-15v in a car and it cannot use normal RF433mhz due to noise affecting other components in the car. I want it to work with bluetooth, 2.4ghz or something like RFID technology. Let me know if this is possible.

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    Touch sensor TTP223 modification หมดเขตแล้ว left

    I am looking for a freelancer who can modify a TTP223 touch sensor to add additional functionality. The specific modifications required include: - Adding a 12v to 5v regulator circuit to feed the touch sensor - Adding a pin for 12v and a pin screw I may also need help with debugging or troubleshooting the touch sensor in the future. The ideal freelancer for this job should have experience and skills in circuit design and modification, as well as troubleshooting electronic components. The project needs to be completed within a month.

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    design a circut board หมดเขตแล้ว left

    I'm seeking a freelancer to design a circut board for a low voltage project. I do not have a schematic, so I am open for suggestions on the design. We are looking for a circut board design to control a 12volt pump on a weed sprayer, This video explains the machine - Input 12 V from a car battery. - Output 12v to a small poison spray pump. - Poison control pump 12V 10 amps draw - low-cost solution without wifi or BLE As described in the video we need a device to replace the operator’s thumb on the control button for the machine. We need to be able to adjust the length of time the pump runs at a factory level – this run time will be set up before the unit is delivered to the end user. We need to have the operator with the ability to adjust

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    100W - 1000W High Frequency AC Inverter หมดเขตแล้ว left

    We are looking for a skilled professional to design and develop a high-frequency AC inverter for automotive use. The project requires a maximum power output of 100W - 1000W and a preferred input voltage range of 12V - 24V. Ideal Skills and Experience: - Experience in designing and developing AC inverters for automotive applications - Strong knowledge of high-frequency power electronics and circuit design - Proficiency in selecting and integrating components for efficient power conversion - Familiarity with automotive electrical systems and safety standards - Ability to optimize efficiency and reliability of the inverter design - Experience in testing and troubleshooting inverter performance - Understanding of thermal management and protection mechanisms for high-power applications...

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    Sinewave Inverter Circuit 12v/24v - 250w - 1000w หมดเขตแล้ว left

    ...am looking for an experienced freelancer to design and build a Sinewave Inverter Circuit with a power output of 1000W. The circuit should be able to provide voltage outputs of both 12V and 24V. Requirements: - Design and build a Sinewave Inverter Circuit with a power output of 1000W - Provide voltage inputs for both 12V and 24V - The circuit should be built from scratch, as there is no existing prototype Skills and Experience: - Strong knowledge and experience in circuit design and power electronics - Proficiency in designing and building Sinewave Inverter Circuits - Familiarity with voltage outputs of both 12V and 24V - Ability to work independently and deliver high-quality results If you have the required skills and experience, please submit your proposal deta...

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    Elektronik Devre Tasarımı หมดเขตแล้ว left

    12v otomotiv de çalışacak sistemimizde kullandığımız 3 Adet dc motoru araçtan bazı veriler alarak belirli zamanda ve belirli hızlarda çalıştırabileceğimiz kendi yazılımızı yükleyebileceğimiz elektronik kart tasarlatmak istiyoruz.

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    I need a PCB design using mentor pads software. หมดเขตแล้ว left

    The circuit will be powered by 12V, which will convert to 5Volt and power the esp32cam. Alongside the esp32cam there will be 2 led and 1 buzzer and one solenoid door lock(you just need to leave a pin for the relay it will be controlled by really). All components should be just simple module-based components.

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    High frequncy transformer with mosfet หมดเขตแล้ว left

    High Frequency Transformer with MOSFET Requirements: - I am looking for someone who can design a high frequency transformer with MOSFET. - The input voltage range for the transformer should be more than 100V. - The desired output voltage for the transformer should be 12V, 24V, or 48V. - The desired power output of the transformer should be 100W, 500W, or 1000W. Ideal Skills and Experience: - Experience in designing high frequency transformers. - Knowledge of MOSFET technology and its application in transformer design. - Understanding of power output requirements and voltage regulation. - Ability to optimize transformer design for efficiency and performance. - Familiarity with electrical circuit design and simulation software. Please provide examples of previous projects related t...

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    I have got all needed equipments: - VCI Interface (Mongoose-Plus). - FDRS license. - A laptop running windows 11. - USB Flash drive 32GB (exFAT). - 12V Automotive Battery Maintainer. I tried to update my APIM module myself, but unfortunately an error occurred which prevents me from updating the APIM module. I need Ford FDRS coder expert to update my APIM to the latest version for my 2022 Ford Bronco (preferably from Ford company). Cheers, Omar

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    Build a Schematic for a SOM หมดเขตแล้ว left

    ...variant. The datasheets and some reference schematics are available on the MYIR website. There is a development board based on this SOM whose schematic is also available. - The following are the requirements for the product, and need to be attached to the SOM making sure all rules are followed (as per the datasheet) o 4USB Ports (may or may not need a 4usb hub chip) o 1 Ethernet Port o WIFI Module o 12v Power Input (Refer Development board schematic) o 1 Momentary Push Button o 2 RGB LED o (Micro USB port/Type C port for flashing the code) o SD Card for development variant LINKS TO DATASHEETS: MYC-Y6ULY2-V2-4E512D-50-C Overview : Mouser Product:

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    required columns: country, authority name, position, first/last name, email, (phone is optional). List based on: Positions required: Director General, CFO, COO, airport regulator, airline regulator. Concentrate on Asia Pacific, South America, Africa first.

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    Schematic of a solar charger with chip CN3791 หมดเขตแล้ว left

    I would like to copy a pcb board that I bought from the market The input from solar is 6V, not 9V or 12V. I just found the schematic with 12V input: but I want the schematic of this pcb for 6V. Any help would be appreciated. Thank you.

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    Launch Marketing Project หมดเขตแล้ว left

    I am seeking an individual or an agency to work with...campaign for my new small business. To keep it brief, we are based in Australia and we have designed, patented and developed a solar energy storage and distribution device specifically for use in off-grid dwellings, new and old. Initially, I suspect a good audience to target would be individuals who are already living at least partially off the grid and are using a generator and/or just a basic 12V solar system. So far a website has been built and SEO has been managed, albeit poorly, and I need someone to grab the marketing by the balls and sell these things. It's a great product, people who have found us love it but the challenge has been putting them in front of the right people. If you're interested in helping out, ...

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    IR remote control Nano Every with LED functions หมดเขตแล้ว left

    ...10 meters and a compact design. The LED functions required include customizable patterns and colors. The ideal candidate should have experience in designing remote controls and LED setups, and should be able to deliver a high-quality product that meets my requirements. I have all the hardware, I think: Arduino Nano Every board, IR remote receivers, and LEDs with built-in resistors to handle 5V-12V power. I have Car mp3 IR remote. I want to program IR buttons to control LEDs: 1. ON/OFF 2. Fade from OFF to full brightness AND stay ON (till power is cut), 3. Separate button to blink a LED (like the blink rate of a car turn signal) x 2 I want to have a schematic to follow so I can learn how to build this project using the Arduino and FLASH BURN the code to an ATMEGA 328P. This setu...

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    DC CIRCUITS -- 2 หมดเขตแล้ว left

    I am looking for an experienced electrical engineer to design and build a DC circuit for my specific needs. The circuit will need to have the following specifications: - Voltage: 12V - Current: between 1A and 5A - Purpose: Running a motor Ideal skills and experience for this job include: - Strong knowledge of DC circuits and their components - Experience designing circuits for specific purposes - Ability to troubleshoot and problem solve any issues that may arise during the project - Familiarity with motors and their power requirements The final result should be a fully functional DC circuit that meets the above specifications and can effectively run the motor.

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    ELECTRICAL DESIGN ENGINEER - 16/06/2023 15:33 EDT หมดเขตแล้ว left

    We are a manufacturer of 12v and 12/24v jump starters. We rent and sell to the automotive industry. We are in need of someone who can develop a reverse polarity protection circuit for our jumpstarters. The circuit would have to stop the current from flowing thru to the vehicle being started if the cables happened to be hooked up wrong. Is this something that your company can do?

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    เร่งด่วน NDA
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    Design a canal cross regulator and head regulator หมดเขตแล้ว left

    I am in need of a canal cross regulator design. The canal having discharge of 2.5 cumec, slope is 1 in 4000, bed width 4.60 mtr, normal water depth is 1.50.

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    Assemble PCB prototypes หมดเขตแล้ว left

    I am looking for someone to design and assemble 10 PCB prototypes that are small in size and simple in comple...Expense to be as low as possible per unit. -- Quality: Need these to be high quality. -- Reliability: Must have quality components so board can be used indefinitely with no failure. -- Quantity: Will need 10 prototype boards for testing within 4 weeks. -- Use the utmost least amount of power possible. -- Need rough idea what these boards will cost assembled. -- Include a voltage regulator to regulate automatically no matter the input power. Ideal Minimal Skills and Experience: - Experience with PCB design, troubleshooting and or assembly. - Knowledge of component sourcing and procurement. - Attention to detail. - Ability to work within a specified...

    $750 - $1500
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    $750 - $1500
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    Trophy icon Find me a Generator online หมดเขตแล้ว left

    We are seeking someone who can assist us in identifying or customizing a mechanical generator. The first person to identify a URL of a product online that meets these specs (or a company that confirms it can assemble it as spec below) gets the award. The primary application will involve a low-speed, high-torque input. Key Specifications: • The generator must produce an output of 12V and 1.5A DC. • The input torque must be no more than 4 foot-pounds. • The RPM input should be under 180 per minute. • Ideally, the cost of the generator should be under $150.

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    การันตี

    ESP Master/Valve Driver Update: 1. Replace the 5v LDO to Buck converter. So we can provide 12v input power supply and convert it to 5v for ICs 2. We would like to connect pressure transmitter sensor with i/p 10-30v and current output 4-20mA. Shall we use the existing S1 port for this purpose? If not, we would like your recommendations 3. Experience heat beneath IO Expander IC in 4-Valve/8-Valve board. 4. May need to revisit the power draw of LEDs in master board 5. Sometimes ESP overheats with WiFi STA/AP mode. 6. Redesign existing Eagle project into Easy EDA 7. Provide adequate support for Firmware changes Slave/Wireless Pump Controller: 1. Handle ESP32 brownout/flicer scenarios when WiFi is turned On and sending HTTP request to master 2. Remove the 5V power supply to I2C ...

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    It's not an air leak! หมดเขตแล้ว left

    two maintenance professionals debating a pipe with a leaking compressed air pressure regulator. Maintenance Professional 1: That's an air leak, the boss told us not to waste time on them. Maintenance Professional 2 It's not an air leak, its a broken regulator

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    ...necesario. El Dispositivo es ampliable, consta de una PCB principal con todas las funciones y se puede cablear para conectar con un módulo RF si el cliente lo requiere. Se trata de un dispositivo IoT, donde la ESP32 contacta con la App del cliente a través de servidor propio (Wifi). IMPORTANTE: El Firmware se ha de poder actualizar en remoto a través del servidor. ACTUACION GENERAL El equipo recibe 12V de forma directa a través de la línea eléctrica general de la vivienda. También dispondrá de una batería de apoyo, la cual deberá durar al menos 16 horas de corte de luz. Esta batería, antes de que se quede sin energía, avisara varias veces al cliente a través de la App para que este informa...

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    Design Arduino car dash หมดเขตแล้ว left

    I am looking for a freelancer who can design an Arduino car dash. The dashboard should display the following information: Fuel, Oil pressure, Coolant temp, Trans temp, Volt, Block temp. Using 6x SSD1306 mono displays running the U8G2 library. 6 Displays wired through a TCA9548A multiplexer. Vehicle is a 12V system and all sensors run on resistance. These values will be supplied within a timely matter. If additional hardware is required, please specify. To run on a Arduino Mega. Displays are 128x64. The display will be split in half. Bar graph 30x126pixels (centered in display). Gauge name centered under bar graph 30pixel high. This is the same for all 6 screens. When button is pressed, screens will change from bar graph to digital (number) readouts in the centre of the top half...

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    Modify existing schematic หมดเขตแล้ว left

    I am looking for someone to modify an existing digital schematic and create the files necessary for PCB ...goal of this project is to create PCBs. We will have 4 COLORS (RED, BLUE, YELLOW, WHITE). contains boom file. Objective: 1 Use image NEW_SERIAL_LED_Design file to modify (Instead of using 1 output line per LED, we change to 3 LEDs per output. 2 Use output PA4-PB1 as outputs. Engineer may choose different pins if necessary. 3 We need to have 12V, A, B, GND on both sides of the board to create a serial ring of modules using NEW_CIRCUIT_DESIGN 4 Need a 3 pins jumper connected to a 3 input pins for unique ID. Suggesting PA0, PA1, PA9. Engineer can also choose different pins if necessary. 5 Remove resistor R44 and R46

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    Design PCB for Access control หมดเขตแล้ว left

    We need you to take our 12v circuit design and turn it into a PCB design with terminal block inputs and outputs. Currently we use 3rd party bi-stable latching relays that have a SET, RESET and REVERSE input however we would like to incorporate this into the PCB design so we don't need third party controls if possible. Below is the links to the special components, you can use any DPDT relays. Timer BiStable Latching Relays Also the circuit needs to be optimized and could possibly be simplified with the introduction of diodes and removal of some relays. The outcome needs to be a print ready circuit board

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    Home generator หมดเขตแล้ว left

    Create connection scheme for home electricity project: - Fuel generator - AGM-battery - Solar panel - Regulator

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    ELECTRICAL DESIGN ENGINEER หมดเขตแล้ว left

    We are a manufacturer of 12v and 12/24v jump starters. We rent and sell to the automotive industry. We are in need of someone who can develop a reverse polarity protection circuit for our jumpstarters. The circuit would have to stop the current from flowing thru to the vehicle being started if the cables happened to be hooked up wrong. Is this something that your company can do?

    $483 (Avg Bid)
    เร่งด่วน NDA
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    Power Distribution Board หมดเขตแล้ว left

    I need a Power Distribution Board designed for my project. The board should have a voltage requirement of 12V as various electronics will be connected to it. I need 6-10 output channels on the board. Ideal skills and experience for this job include: - Experience in designing Power Distribution Boards - Knowledge of electronics and wiring - Familiarity with voltage requirements and output channels - Attention to detail and ability to create a neat and organized design.

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    $101 การประมูลเฉลี่ย
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    Simple Automotive Relay wiring diagram -- 3 หมดเขตแล้ว left

    Most important requirement: POST TOTAL BID ONLY!!! Do not post lowball bid to get job and think price is going to increase later, it is not. I will terminate immediately if that is what you do. Timeline: Freelancer must be able to start on the job not later than May 20th ...utilize radiator fans from attached wiring diagram, but not relays in diagram 2. Project to use standard 4 pole or 5 pole SPDT relays 3. Radiator fans are two speed fans, low speed and high speed. 4. SPDT relays to be arranged so that 3 different input signals can control provide low speed fan 1, low speed both fans, high speed both fans 5. Deliverable is wiring diagram and wire harness diagram for 12v automotive application 6. SPDT female connectors at relays, fan connector here:

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    NodeMCU PCB Schematic and Layout Development หมดเขตแล้ว left

    For a personal project- I need a PCB designer working under Eagle or Kicad. The schematic is available. The board consist of DC voltage regulator, NodeMCU (ESP8266), Transistors, resistors, jumpers, terminal blocks totaling 20 components. The tasks are: 1)schematics review 2)PCB layouts, 3)BOM 4)design of the Test module PCB 5)provide support when dealing with the PCB manufacturer during the PCB fabrication Deliverables: -Eagle or Kicad source files for the PCB fabrication and the Test module PCB -generated design/layout files for the PCB fabrication and the Test module PCB Candidates should have strong development experience in PCB route tracing and with Kicad. More details (schematics, requirement documentation) will be provided to the short listed candidates based on their pr...

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    Low cost AC DC SMPS power supply designer needs หมดเขตแล้ว left

    Looking for experienced electrical embedded hardware designer who can design complete schematic alongg with transformer a... 1). 88V-264 AC Input (230V, 50Hz Nominal) AC input based SMPS Power supply 12V, 15 A DC output, 2). 88V-264 AC Input (230V, 50Hz Nominal) AC input based SMPS Power supply 12V, 10 A DC output, 3). 88V-264 AC Input (230V, 50Hz Nominal) AC input based SMPS Power supply 5V, 6A DC output, 4). 88V-264 AC Input (230V, 50Hz Nominal) AC input based SMPS Power supply with Dual output 12V, 6A ...

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    Delivery Box, check device หมดเขตแล้ว left

    ...package, the LED turns RED and a message is send to a defined receiver "Package in the Box". The sensor keeps detecting the package in the box. When the package is removed, the LED turns GREEN. I am asking for a complete project, including hardware and software. The hardware is supposed to be connected to mains supply via a powersupply. The LED are not included in the project. We install these. 12V output for 1 or 2 LED's. A WIFI setup is expected in the project, to be ready to be used with a user setup guide, to define who to receive the message, and with user definition of the message to be received. A proper sensor to detect the package must be delivered. The package is defined and the measure of the package is 12cm high, 8cm wide, 8 cm long. The sensor shal...

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    ESP32-Based Wi-Fi Thermostat PCB Design -- 2 หมดเขตแล้ว left

    ...and be no larger than 60x60mm. The thermostat will be powered by 24V AC, and it will control up to 4 relays handling 24V AC / 1A max. Key requirements: ESP32-WROVER-E-N8R8 module with program and reset buttons, as well as status LEDs for upload and operation. Four relays capable of handling NO - COM 24 Volts AC / 1 Amp max. (pins defined by designer) Rectifier bridge to convert 24V AC input to 12V DC / 3.3V DC. Temperature and humidity sensor: Sensirion I2C SHT31-DIS-B2.5kS. VOC sensor: Sensirion I2C SGP40-D-R4 (with a different address on the same bus). SMD components and a rectangular PCB no larger than 60x60mm. Ethernet interface with port( preferebly use LAN8720) have an Waveshare 2.13inch E-Ink Display Module connected to the ESP32 Deliverables: Schematic and PCB layout ...

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    I am looking for a hardware designer who can design a low-cost SMPS power supply for my industrial equipment. The power supply should have an output voltage of DC 5V and 10A, 12V and 10A, dual output5v, 12v and 10A DC. . The input voltage range should support both 110-120VAC and 220-240VAC. The ideal candidate should have experience in designing SMPS power supplies and be knowledgeable in the following areas: - Power electronics - Analog and digital circuit design - Switch Mode Power Supplies (SMPS) design - PCB layout design - Power supply testing and verification The scope including these 3 products electrical hardware schematic design, components sizing calculations like transformer and inductors, pcb design, bom list readiness, metal Cabinet design. All the source fil...

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    PCB for Trailer Light Tester หมดเขตแล้ว left

    ...single-sided PCB, with dimensions within a specific size range. The components to be used in the tester will be a mix of standard and custom components. Ideal skills and experience for this job include: - PCB design experience - Knowledge of single-sided PCBs - Understanding of component selection and integration - Ability to work within size constraints Functions of PCB Power in (FIgure A) (12V DC Rechargeable Battery) POWER OUT - Battery Level Indicator (Figure B) The battery level indicator will be monitoring the battery power and will display this on three LED lights. 100%-60% (green), 59%-30% (yellow), 29%-10% (red) - Left Switch (Figure C) When switch is pressed, send power out, and if the circuit is good, display this by turning on a green LED, Also display batte...

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    Pcb design review หมดเขตแล้ว left

    ...virtual serial pins for a future current system) that work in conjunction with an atmega328p-au microcontroller. The function of the atmega is to compile and send the data via an RF transmitter connected to the center pin bus. For power, there is a voltage boost circuit to raise the battery voltage from 3.7 V to 5 V, which powers the atmega and other 5 V components, as well as an LDO voltage regulator circuit to reduce it to 3.3 V for the RF transmitter. I have included a zener diode in the boost voltage output to prevent any reverse voltage when using the UART and ICSP connection pins (since they will inject 5 V into the system). To monitor the battery status I have incorporated a MAX17048G. The main function of this system is to monitor industrial electric motors, log data su...

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    Door controller หมดเขตแล้ว left

    I am looking for a Freelancer electronic designer that can design a circuit board that will control a DC motor. The board to be designed will perform the function that I currently perform, in my prototype, with three separate boards. ...the files that I will then supply to the manufacturer that will produce the final board. Links: There is an extra board that I am including witch is simply a voltage regulator, but that is needed for the power of two of the previous boards. Here is the link:

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    Circuit designing หมดเขตแล้ว left

    I am looking for a skilled circuit designer to create a power supply circuit for a capacitive load. The required specifications for the power supply are low voltage (1-12V). The ideal candidate will have experience in designing power supply circuits and have knowledge of capacitive loads. Other skills required for this project include proficiency in circuit design software and the ability to troubleshoot and test the circuit. The project timeline is flexible, but timely completion is preferred.

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    I have got a long way through this project myself, however, I now have a circuit that simulates correctly but fails w...I believe, and example circuit is below. I need to replace the Schmitt trigger section with a 3.3v microcontroller output and have a square wave output with a transition time of no more than 4us. The standard operation will be switching against the 20 Ohm resistance, however during diagnostics – this is switched to an 1870-2100 Ohm resistor leading the voltage to increase for 7mA from 0.14v -> ~12v. I will share my current progress with a schematic, LTSpice model and PCB design files once I have seen someone can help me with this task – ideally someone who can show they have done something similar before. I look forward to finally finishing this p...

    $105 (Avg Bid)
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    ESP32-Based Wi-Fi Thermostat PCB Design หมดเขตแล้ว left

    ...design must use SMD components and be no larger than 60x60mm. The thermostat will be powered by 24V AC, and it will control up to 4 relays handling 24V AC / 1A max. Key requirements: ESP32-WROVER-E-N8R8 module with program and reset buttons, as well as status LEDs for upload and operation. Four relays capable of handling NO - COM 24 Volts AC / 1 Amp max. Rectifier bridge to convert 24V AC input to 12V DC / 3.3V DC. Temperature and humidity sensor: Sensirion I2C SHT31-DIS-B2.5kS. VOC sensor: Sensirion I2C SGP40-D-R4 (with a different address on the same bus). SMD components and a rectangular PCB no larger than 60x60mm. Deliverables: Schematic and PCB layout files in Eagle or another industry-standard format. BOM with Digi-Key part numbers and all necessary information for order...

    $660 (Avg Bid)
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    45 คำเสนอราคา
    Add DC to DC step up inverter -- 3 หมดเขตแล้ว left

    I have a PCB design in kicad and I am looking for someone to design and develop a DC to DC step up converter for it. Also, the design has a keypad interface and I need to replace it with a Bluetooth interface. Moreover, I need to shrink the board size as much as possible. The supply voltage is 5v and I need to convert it for one of the components to 12v, and the current is 2A. The attached design is already supported with a malfunctioning step up converter, I need to remove for good, and use another technology. I need an experienced engineer who is familiar with such projects and knows exactly what I'm looking for. They should be comfortable with taking on the challenge and helping me to complete the project in an efficient and timely manner. I am open to any suggestions they ...

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