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
...rest. First let me 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
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)
...webpages for the following items: I have a system I am going to build that you see in page 4 of the powerpoint. (need 1 + 1 backup) On the left side, I need an Arduino or microcontroller that can handle at least 29 input/outputs, 2 of them need to be Tx/Rx, needs to be fast and handle 2000 lines of code. Which one to pick? (Need 2+1 backup) Available voltage
I need the code to realize an hygrometer/thermometer based on Atmel microcontroller (Attiny 85/ 84 or other avr microcontroller). I wish to read the values from the SHT 31-D sensor and proportionally rotate two stepper motors driven by DRV 8825. Each motor rotates a pointer on a dial to indicate humidity and temperature.
I need a web, html5 oriented electronic voting system to support Government API integration to verify identity, encription for votting, online counting with some real time graphs and usual voting related mechanisms such as opening the polls, time lapse defined, accepted universe of voters, etc.
I need a power strip that is similar to many other products in...strip that is similar to many other products in terms of function (just google wifi power strip etc). I will even send you one to deconstruct to get a better idea. I need the design of the strip as well as the wiring and pcb to control it. I will create a separate project for the coding.
I need a programmer to write C code for an ATTiny10 microcontroller to flicker two LEDs in a random fashion that simulates a real-world candle flame. The code needs to treat each LED as its own "candle", so this is essentially two independent flickering routines. This is different from some implementations where one "candle" consists of two LEDs inside
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.
...a small voltage detecting device similar to these: [login to view URL] And I need your help designing the electronics. You will be required to: * Design electronics * Test and advise on suitable batteries * Create a working prototype Please begin your proposal with the word Robot so I know you're not a robot : ) The number
...would like some software developed to control a number of devices and log actions based on inputs. The inputs are: - temp sensor - push button with LED - Bluetooth - XY axis controller Based on the 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
...and when we got married we buy a house in Taiwan, now I have a legal process, and i need to prove that we have a house in taiwan, i have been searchin and i see that a : electronic cadastre cartificate or a land ownership certificate will work for my legal process in Ecuador . so i need urgently this certificate, or other certificate maybe you know
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
I would like someone from Upstate SC or even in Charlotte NC to contact me
...(Multi-Drop Bus) – protocol, that is used to connect the separate modules of the trading automate to a general splint, which supports the logic and the way they work. The main microcontroller of the device is the one that controls everything and sends commands to other devices (coin collector, banknote collector and card reader). The controller needs to
...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...
My whole main project is to create a phone app whi...be able to also read the readings from my DHT11 sensor (saying: humdity:95%, temperature:@27oC) and PIR sensor (saying: there is an obstruction). The hardware part will be using of DHT11 sensor (a type of humidity and temperature sensor) and Passive Infrared (PIR) sensor (a type of motion detector).
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 deta...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 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.
...technologies that are integrated into daily life. We are searching for an electrical engineer that has experience in: -Design of PCB boards -Printing of PCB boards and soldering of individual components -Design new EMG microcontroller in tandem with biomedical engineers. While hours will be flexible, the goal is to produce prototypes as fast as possible
...relatively easy to configure) to accommodate the required functionality. 2. Develop the CPLD/FPGA code. The device needs to take as inputs a set of states (from a microcontroller so either as an I2C command or as a 3 digital input code, along with 3 digital inputs - alarms). The device then needs to set 11 outputs based on a 4 input truth table
...Operations, Modifications and Maintenance of telecommunications equipment and associated apparatus. (IP, Voice, EoSDH, MPLS, etc.) • Testing, commissioning and fault 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
Hi, I'm making a 3D model of a PCB. I need Sketchup models made of 7 components. Goal is for us to be able to do mechanical verification with these models. The PCBs needs to fit in a housing without touching components, so the models need to be mechanically accurate & good looking to show to sales people. I have attached a document that describes the models we are looking for + the mech...
...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
Hi, We are looking for a freelancer who can develop firmware for ESP32 board, circuit for power supply and controlling the 16X16 led lights (WS2812B). Also we need Android App for controlling the led lights like sending customize or fixed images, text using BLUETOOTH. The freelancer has to provide the specification of the battery on which this board
...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 either case, I would like to have a C or C++ program that would run on the PC to control
I need to make the piezo counter display, 2 seven segments 1.8 in. t...seven segments 1.8 in. the piezo will send low voltage (1 to 5 Volt) to the microcontroller, according to of each puls the microcontroller is going to counting and display it, one reset button to reset the micro controller, I need use Arduino to program the microcontroller (Atmel).
...Signal Analysis. This project consists of two sections. Section 1 Create your own simple hydrophone and record it using Raspberry Pi 1. Create a physical hydrophone based on the attached “Simple Hydrophone [login to view URL]“ document’s design (inside the zip file). If you can locally source the parts, that would be great as it will make the project move fas...
I have a unusual ADC/DAC/GPIO hybrid device connected to a Microcontroller via SPI. I need a driver for the ADC & DAC as well as digital IO from the device
...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