I have a circuit that isn't working as it should. This circuit should convert a sin wave to a square wave, then the frequency of the signal should be divided by 10 using the HC4059. The signal looks very nice all the way until the HC4059. After that IC, the signal looks terrible from varying frequency. I need to know why this is happening and how
...describe the purpose of this circuit. I will be using an ipad to take photos of people automatically. The app I uses plays a beep noise through the 3.5mm headphone jack the other end of the cable is connected to the circuit board where the microphone is currently located. The circuit would hear this beep and turn on a relay switch to turn on 12v 8a white
I creat a golf tournements campany. The name will be: Circuit 19 There is some images i like I would like something modern and simple I dont need any golf item on the logo. Also, I will like to have some logo with a big C (without the name circuit)
Hi, do you have experience with openhab? do you have experience with home automation? are you able to draw a circuit plan - how to communicates devices? if yes then i need you for consulting 2h + drawing a circuit plan...
We have a power electronics circuit ready. The task will be to design the PCB layout which we will send for fabrication and the electronic component soldering will be done by us. The prototype should run after fabrication for the project to be considered successfully completed.
...states of the device, these will drive various outputs (esc, motors etc) I have attached a [login to view URL] image showing the circuit layout. I may also add: - SD Card Reader (logs etc) - Laser diode - battery monitoring circuit so please estimate for this. I would like the work to be done via chrome remote desktop to a chrome OS computer connected
I want the schematic and also the corresponding pcb of this circuit design with all the needed (Gerber) files.( You must only use the free version of KiCad software, use of another software design package is not acceptable ! ). I will provide you with a design from scratch ( by hand - pdf file ). I believe it will be an easy job for someone who knows
...de (german) [login to view URL] (english) and [login to view URL] to my magento 2.2.3 system [login to view URL] Just simple domain switch, if other stuff is necessary, for full working of for the links in the bottom (footer), please tell me, i can't check if these texts are already on the magento 2 server...
...soldered onto the development board. 3. Revision of the power supply - the current development board draws more energy than we would like. Lipo-rechargeable battery. 4. PCB design/updated. Deliverables: - full schematic - full PCB files according to measurements - Bill of materials - Instructions/info on PCB development...
I need a full Arduino program and circuit design including specific parts required to control heating of 6 pieces of Nitinol wire using pulse width modulation. Requirements: 1. I need a full circuit design 2. List of parts available in Australia that I should buy in order to build the circuit 3. Arduino program to control the heating of the wire
Hi, We are looking for a pcb designer who should have good knowledge on mixed signal pcb designing, analog circuit designing and multi layer pcb designing. Submit your proposal with your previous experience. Details of the project will be shared to the concerned freelancer who got selected.
We need Fritzing diagram for 12 simple circuits. The circuits are simple and I will give all the details which has to be designed using Fritzing software w...are simple and I will give all the details which has to be designed using Fritzing software will all the parts and clearly labeled. There are 11 simple circuits and 1 final circuit combining all.
I am looking for an experienced individual or team that wi...looking for an experienced individual or team that will create an initial design and functioning prototype for a custom electronics project involving wifi communications, cameras and motion detection. Strong experience with consumer quality production of electronics and design is preferred.
You have to implement the given logical topology into a physical topology with able to ping, STP is configured properly, DNS, Email Server, and Web Server. By default, all the ports are connected but shutdown. You are required to turn on only the required port for your topology
...isolation of circuit orders for IPLC, EoSDH, voice circuits, IP circuits etc. (including the last mile offnet segments) • Implementation of new projects based on EPLAN, statement of work and provide necessary support for successful execution. • Basic facility maintenance (CRAC units, UPS, Generators and other general building equipment), including basic DC plant
need a network interface PCB designed and layed out. Must have Fiber module carrier, three copper network ports and an RGMII interface and network switch. Must use Marvel network switch (which we will specify). Must run off single 5V power supply. Also needs a daughter card on the board for an expansion board that passes through signals (UART and some
I Have vlans configured and I can ping gateways but can't seem to get ip assignments to vlans working.
...regenerative energy from the electric motor during freewheeling, to charge back the battery. I want this to be semi-automated and hence I'm looking for a MOSFET/IGBT based switching circuit to achieve the same. Below is the scenario and problem statement. Check the diagrams for reference What I have: 1. 1000W E-bike controller with throttle 2. 48V Lead Acid battery
I have a simple device that I will need to control and monitor from from a PC via its USB port. This device will have an I/O port (one for for 8-bit input and one for 8-bit output ). Also, apart from the I/O, I will need a few additional lines to work as CONTROL lines. The interface circuitry could be built using an ARM Cortex micro-controller, or use an available standard USB interface chips. In...
need to deploy two Cisco ASR1001 Routers and two Cisco 3560x switches in a...ASR1001 Routers and two Cisco 3560x switches in a redundant configuration using BGP and brodcasting ASN. Currently setup with non-redundant Cisco 3925e router and a juniper switch. Also have two internet carriers configured to failover from primary to standyby on the 3925e.
...this calculation in Excel. Also the website URL. The Excel file contains a design equation allowing the output voltage adjustment for a DC/DC converter based on varying an input voltage making the DC/DC converter dynamically programmable.I have simulated (LTSPICE) the circuit with the values obtained from the Excel spreadsheet and it works as advertised
Dear Freelancers We need our existing Opencart site to run entirely on https. Currently the admin, login and checkout pages do, but we need every single page to be https. The work we need is as follows: 1) Setup a mirror / duplicate site 2) Code the htaccess to force https on all pages 3) Fix any extensions to ensure everything runs on https 4) Create 301 redirect for every page from http to htt...
...3amp ultra fast smartphone charger design with following technical specifications and features: Technical specifications and features: • output voltage: 3.6V to 12V and the maximum output current: 3A or slightly greater than that like 3.1 or 3.4 amp and this power should be 18W (Not cheaper and conventional design like output 5V/3A, or 15W power, easily
...what to really do to make it work. Since Wolfram Alpha program is on Android and Windows and can also be used from their website. So I guess I would just need to rip out the circuit board in the calculator and install an Audrino Nano in it. Then I would need to code it so that the Audrino would boot up in the Wolfram Alpha program or code it in web-based
...OV7670, STM32 microprocessor, Battery charging module, Bluetooth AT-09. We only have circuit diagrams for individual components but we need Gerber file to place online order for final board. You will have to do: 1. Review components we require on the board and draw a circuit with applicable components, resistors, capacitors, etc 2. Make suggestions and improvements
...is a power supply & battery charging circuit design. Fabrication of the module is not required. Subject to the specifications below, required for delivery is: - circuit board BOM (incl manufacturer part numbers) - design files (preferably EasyEDA, but Kicad, Eagle or Altium OK) - detailed description of circuit operation Specifications: - usb-c in
My project is to use an arduino circuit like ATMEGA328P Pro Mini 328 Mini and a SIM 800L gprs GSM circuit board, prefered board to be smallest possible or ( if you can recommend better module for this project is fine let me know) conected to a the main alarm control panel and whenever there is an alarm this module call and send a text massage to the
Hello, I want te redesign circuit to test self interference cancellation on 28 Ghz with different Bandwidth 5 mhz and 10mhz and 20 mhz to check the amount of self interference can be cancelled. Why I choose 28 Ghz because at this will be the frequency for 5G . Self interference cancellation has many techniques one of them is antenna cancellation So
hi i need a clear code to count rpm from engine (from the spark plug cable or fuel inyector) its going to be par...i need a clear code to count rpm from engine (from the spark plug cable or fuel inyector) its going to be part of a longer code so no "delay" functions. also shematics of circuit if needed. engines go up yo 16,500 rpm to be used with nano
Build printed circuit from a blueprint drawing project of the item attached. PCB file requested. Possibile request to build an hardware prototype with USB port (not LPT port like the original): request of MOB Excel file. I already have a PDF file of the original blueprint.
We have a network board with 8 ports. Each port is controlled by an onboard CPU and associated memory. Out of 8 ports, two ports are bad. It could be bad CPU, bad memory or other reasons. We are looking for someone that can repair this board.
Use Photodiode BPW34 or 21, design an circuit that would do : 1. amplification from nA current input to 100X to 1000X 2. Time integration for this input 3. Analog Output to connect to Arduino as analog 4. Bonus : 16 bit A/D as output for Arduino.
I am working on wireless power transfer and have come up with some circuits I need to compare in terms of efficiency. I need someone to help me plot their efficiencies against coupling coefficient as well as varying load impedance. It's very easy stuff, just that I don't know how to go about the simulation. I have all component values and necessary equations. Just the plotting is all I n...
I am looking for a PCB board designer. Design a mini circuit board (needs to fit inside at the bottom of the coke can) that powers a mini fan and a circular UV tube using lithium battery that can last min of 120 minutes under temperature around 2-5 C. . This unit needs to provide a switch that gives 3 specified time per cycle (Ex. 1 min/3 times a
I need some one to design a mini circuit board (needs to fit inside at the bottom of the coke can) that powers a mini fan and a circular UV tube using lithium battery that can last min of 120 minutes under temperature around 2-5 C. . This unit needs to provide a switch that gives 3 specified time per cycle (Ex. 1 min/3 times a day, 3 min/3 times a day
...Simplify Your Circuit Board Testing with JTAG Boundary Scan How Boundary Scan Testing can Reduce PCB Manufacturing Wastage Common misconceptions about JTAG Boundary Scan JTAG Boundary Scan - Myths and Facts How to bridge the testing gap between PCB design and manufacturing DFT ASSISTANT How to Eliminate JTAG Testability Mistakes from Your PCB Design in a Few