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Need a PCB designed using the ATMEL SAM21D + SIM7020G and should have the proper resistance trace and connector for an external LTE antenna. It should use a usb connector to program the SAM21D in a similar way to the Arduino MKR Zero. The Atmel microcontroller will be connected to the SIM7020G in such...SIM7020G and should have the proper resistance trace and connector for an external LTE antenna. It should use a usb connector to program the SAM21D in a similar way to the Arduino MKR Zero. The Atmel microcontroller will be connected to the SIM7020G in such a way to send data over LTE of course. Additionally, there should be 3 channels to measure voltage between 6-40v using the Atmel's onboard ADC. Cost of components should be a consideration. Designs should be submitted in Ea...
I'm seeking an electronics expert for a specialized task: creating a control board for an Analog-to-Digital Converter (ADC) using Field-Programmable Gate Array (FPGA) technology. This board will primarily aim for data acquisition, taking advantage of a high-quality 24-bit resolution ADC to ensure accurate and reliable data retrieval. Interfacing will utilize the Serial Peripheral Interface (SPI) for its inherent advantages in speed, reliability, and simplicity. Key Skills & Experiences: - Proficient in FPGA design and programming - Familiarity with high-resolution ADCs - Experience in developing SPI interfaces - Understanding of data acquisition systems Your expertise will contribute significantly to the development of a powerful data acquisition tool. Let...
I have a pre-existing STM32 board (STM32H750VBTx) that requires a skilled freelancer to complete a time-sensitive project. The tasks include reading data from 6 ADC channels (DMA), transmitting it over UART, and implementing a basic Proportional-Integral algorithm to control the DC output. I will be present to explain the hardware setup and provide assistance throughout the project. Proficiency in STM32 programming, ADC, UART communication, and basic control algorithms is required. This is a straightforward task for an experienced STM32 developer, and immediate availability is essential. If interested, please bid on the project, and let's get started.
...to a MySQL database for visualization on Grafana. Liquid Type: - The liquid being monitored is water. Arduino Model: - I am using an Arduino uno that I would like to be used for this project. Data Updating Frequency: - The data should be updated to the MySQL database every few hours. Data will be sent to the cloud using a botletics sim7000 module. The liquid level is measured using a 4-20ma sensor which is running through a voltage converter giving a voltage input signal to the arduino The arduino and sensors will be running from a battery and solar panel - power management is important. I will want the arduino to turn on a relay which will power up the sensors, wait for a couple of seconds - take the level reading then power the relay down again to preserve power. I ...
Looking for someone to develop a Python 3 / HTML two thread app for me. It'll run on a Raspberry 4 or 5. I'll do the Apache Server configuration... and such. You'll write the python app & Index.html. I'm attaching a PDF description of exactly what I'm looking for. You'll need this hardware for debugging: Serial Port adapter (to read / verify the Raspberry Pi RS232 output). SPI ADC.
I need a PCB design and parts suggestions for my project, with the following requirements: - Reliable measurement of Velostat resistance, without significant noise. - Bluetooth communication capability. - Powered by a USB cable. - Smaller size compared to the prototype. I currently have a working prototype (ESP32 + external ADC because there is too much noise on the ESP32 ADCs), but I need a smaller solution with a custom PCB.
Presciso de algm com experiencia para configurar uo wasender não estou conseguindo scanear o qr code para acessar o whatsapp e então importar ou adc membros a um grupo. Presciso de soluções
I am looking for a skilled freelancer who can design an analog circuit with fusion 360 electronics. The purpose of the circuit is to generate an analog output signal -10 to +10V and 0 to 20mA from a DCA outptu 0..3.3V, and it should have high precision. The desired size or form factor of the circuit is medium-sized. Skills and experience required: - Strong knowledge and experience in designing analog circuits - Proficiency in using fusion 360 electronics - Ability to design circuits with high precision - Familiarity with medium-sized circuit design and form factors German is a big plus!
Hi, I need program for Drawing wire on Delta PLC , need to control the speed of four motors (using VFD) via the modbus RS485 we need hold constant speed using 4-20ma resistor sensor, we have converter 4-20ma to rs485, so need write program that can PID control 4 motors to hold constant speed, useng liner resistor for feedback
Hi Michael Kofi A., Thanks for Akan ADC project with Cognegica Networks. Sending you offer for payments
...interactivity with mouseover descriptions. Artwork and Frame Data Integration The Developer will receive an Excel list containing 30 new artworks and related metadata. The Developer will be provided with images for 30 new frames, including separate images for the corners and bars which must be assembled to create a full frame representation (FRM-L-<CODEHERE>.jpg). The Developer will also receive images for 30 new frame thumbnails to be displayed in a scrollable list on the artwork page (FRM-S-<CODEHERE>.jpg). JavaScript and JSON Update The Developer will download the current script and associated JSON files from the Client’s website. The Developer will
I am looking for an expert freelancer who can help me with programming the nRF52840 controller. The main goal of this project is to program the controller to meet my specific requirements. Skills and experience required: - Expertise in nRF52840 programming - Knowledge of programming languages and tools commonly used with the nRF52840 controller - Ability to configure the ADC module and set up the Bluetooth functionality I am open to the freelancer's expertise and do not have any specific programming languages or tools in mind. However, familiarity with standard industry tools would be preferred.
A flyback boost circuit that needs to be fixed as I cannot get the simulation to work. Should be constant current. Amplitude - between .2 - 20mA Channel gros on off at 2kHz. Enable is on. Open drain has to be closed by the uP. V_SYS is at 5.1V. HV at 140V I2C sets the ePot resistance Current path from the ring finger to the thumb. Driven by an ESP32 For chronic pain. End waveform
Hello, I am looking an experienced freelancer who can help me to debug the error that I am facing. I am calling dialogflow API from my local but I face following error. I need you to debug this error side by side with me. I am ...side by side with me. I am using CloudShell and Flask building the app. Welcome to apply : 403 Your application is authenticating by using local Application Default Credentials. The API requires a quota project, which is not set by default. To learn how to set your quota project, see . [reason: "SERVICE_DISABLED" domain: "" Full Stack Development Skills Flask API Integration Dialogflow API Python Chatbot
We have a data logging software on windows C# that we use it with arduino normally, AND NOW, we want to use STM32 bluepill(or blackpill) and our software adaptation. Please read carefully below explanation and give your price. Dont waste our time if you dont have stm32 project experiences. 1- STM32 bluepill or blackpill will be used. 2- 8CH STM32's ADC Reading and sending via COM port to the computer and see values on our software. 3- ADC reading and data sending speed 50k samples for each channel. Total 400k sampling in a second. 4- All STM32 cube and Keil codes will be given and all codes have to have explanations. 5- We have a C# based Windows software. Now, our software can not get data over 5000 samples. Our software will be UPDATED. I will share our software'...
We need to connect esp32 uart to Gilbarco 2 wire which is. Positive and negative. Gilbarco 2 wire protocol which is an asynchronous serial link, using standard NRZ communications between UARTs. There are two not-quite-standard aspects: 1) It is a 40 mA current loop, (not 4-20ma) 2) Logic 1 is current ON, Logic 0 is current Off. We would like someone to implement the connect so that we can send command and receive data from Gilbarco dispensee
Im looking for someone who can support me in coding. He/She must have string Embedded knowledge with C and C++ skills , Microcontroller knowledge, driver development, ADC knowledge, freeRTOS, data modeling, framework, bootloader exp.
...looking for a skilled freelancer to design a current limiter for a specific electronic component, namely a resistor. The purpose of this design is to protect the resistor from excessive current flow. I have a power board and it is working at 180v peak to peak voltage 18khz sine wave and 40 ma RMS. The issue I have the current is not steady I want a circuit design that ensures the current not exceed 20ma rms. Requirements: - The current limiter should have a peak to peak voltage of 200v and a current limit of 20mah at a frequency of 18khz. - The design should be suitable for an in-home working environment. Ideal Skills and Experience: - Strong knowledge and experience in electronic circuit design. - Familiarity with current limiting techniques and components. - Ability to de...
...ESP32 Description: I am looking for a skilled programmer to work on programming an ESP32 device. The project requires the use of the Arduino programming language and should be completed within 2 weeks. Specific requirements: - I have a detailed list of functionality and features that need to be implemented on the ESP32. - Program has to read the data from modbus devices, read the analog input 4-20mA, read the digital inputs, controlling the relay outputs. ESP 32 should connect to the any cloud database by GSM or by LAN/WAN when GSM is not available. More details will be available for selected candidates. - The programmer should be experienced in working with Arduino and have a strong understanding of its capabilities. - Attention to detail is crucial to ensure that all the spec...
...voltage converter to power an ESP32 microcontroller. The power supply should provide sufficient current to ensure stable ESP32 operation. 2. **ESP32 Integration**: All pins of the ESP32 should be available on the PCB, with proper labeling and connections for easy interfacing with other components. 3. **Analog Signal Integration**: The PCB should include additional components to interface with two 4-20mA analog sensors operating at 24V. These sensors should be connected to analog input pins of the ESP32 for data acquisition and processing. remember esp32 pins are 3.3v so need to implement somthing. 4. **Antenna Port**: The PCB must have provisions for an antenna port for the ESP32, ensuring seamless wireless connectivity. 5. usb C port for programming the esp32 I am looking ...
...programmer to finish our firmware, they have delivered it to us and it seems to have errors. Project description: Iot device connected to App and server through MQTT (Already working). We are looking for a collaborator who has the following experience: -Programming in "C" language -Management and knowledge in IDF expressif -Management of free-RTOS -Knowledge of structured programming -Knowledge of ADC signals Jobs to finish: - Wifi local network configuration for Esp32 microcontroller - OTA installation (remote updates via server) - Installation of Radio Frequency module -Code check in "C" to repair it or program it again. We offer: Team of collaborators in all areas (Electronics, App. Backend) Daily support as required. Contact the professional who made the...
...changes and simulations performed on the PCB. The documentation should provide a comprehensive overview of the modifications required. Ideally we don't want to modify the current PCB layout but hopefully only make changes to specific components to get as close as possible to the target input impedance. This means the same footprint components. in the end the two amplification circuits are read by ADC (3.3v chip). orp input -1500mV -> +1500 mV pH input: -400mV -> + 400mV See images attached of current setup. Ideal skills and experience for this project: - Experience in TeraOhm input impedance testing and PCB simulation - Proficiency in analyzing and improving PCB performance - Strong documentation and reporting skills to provide a detailed report of changes and sim...
...programmer to finish our firmware, they have delivered it to us and it seems to have errors. Project description: Iot device connected to App and server through MQTT (Already working). We are looking for a collaborator who has the following experience: -Programming in "C" language -Management and knowledge in IDF expressif -Management of free-RTOS -Knowledge of structured programming -Knowledge of ADC signals Jobs to finish: - Wifi local network configuration for Esp32 microcontroller - OTA installation (remote updates via server) - Installation of Radio Frequency module -Code check in "C" to repair it or program it again. We offer: Team of collaborators in all areas (Electronics, App. Backend) Daily support as required. Contact the professional who made the...
I am looking for a freelancer who can help me with writing Raspberry Pi code for my temperature sensor project. The ideal candidate should have experience in Python programming and be familiar with Raspberry Pi. you need to make sure that the ADC is reading it tell you if it work or not i just need output number when you finish i will convert it to a function i am openig on the pi a code to test if it reading any thing Chip ID: 0x0000 that value it is not reading any thing i will focus on other stuff if you find that you cant do it tell me Requirements: - Experience in Python programming - Familiarity with Raspberry Pi - Ability to write code to control a device using temperature sensor data Skills: - Strong knowledge of Python
Project Description: Can you help me with a mini spectrum analyzer using FPGA the results will be on a pc screen with GUI that the user can put markers on and change the resolution, to make a spectrum analyzer with FFT algorithm on FPGA Using UI the u...me with a mini spectrum analyzer using FPGA the results will be on a pc screen with GUI that the user can put markers on and change the resolution, to make a spectrum analyzer with FFT algorithm on FPGA Using UI the user can control the span a put markers. The user will be able to change parameters in a user interface. The ADC is the sampling. The FPGA is going to calculate the FFT. The all idea is to mini spectrum analyzer (the measurement device). Block chain 1. ADC for sampling 2. FPGA to calculate the FFT and sent it ...
Build code to Read 4 Analog Signals 4-20ma in a ESP32. We have made a board thats basicly has: ESP32 WROOM ADS1115 over i2c 4 Current to Voltage converters 4-20mA to 0-3V We would like to read the values from the probes. Actualy we've got already made code for reading and readings can be made. We apply already have a Int[] for multiples readings, made an average of squared values, Calculate the RMS value and Apply a rolling average. Althought the results still fluctuate a lot. Experience is needed. Full code can be provided.
...module containing: 1. wide input voltage ADC (+-10V) 2. positive&negative 15V voltage supply for precise magnetic field sensor 3. Positive 15V supply for precise magnetic field sensor 4. 2x mezzanine connectors for embedded module (library will be provided to the engineer). SPI ports from ADC, etc. will have to be connected to those mezzanine connectors. 5. 5V out low noise power supply for the embedded system (300mA average output current with 1A peak), 24V in. Routed to mezzanine connector. Design requirements: 1. PCB: - max 4 layers - 1.2mm FR4 - gold plated or HASL with lead - passive component size 0402 or bigger - dimesnions as small as possible, a dxf shape will be proposed - 6mil min. distances and tracks - 0.3mm min. drills - all power supply and ADC c...
1-I want a design for the smallest Pic Microcontroller that will handle the program. 2-I want the circuit to operate at 9vdc(common battery) and the program to remain unchanged when powered off. 3a)-I want the program to control a vertical line of 10 conventional 3 or 5mm, 20ma LEDs. 3b)-I want the program to also control three common 5mm LEDS @20ma in parallel. 4-When the circuit is powered on I want the stack of 10 LEDs to act in this manner…..the top LED will light then go off and the next LED will light below it with the effect continuing till the bottom LED is lighted and remain on. Next the effect starts again at the top until the column of LEDs is all lighted. This column stays lighted for about two seconds. 5-I want a potentiometer to adjust the fill rate bu...
...want to achieve with the programming is the automation of the system. Ideal Skills and Experience: - Strong programming skills in the specified PLC and HMI system (to be specified by the client) - Experience in developing automation systems for pumping systems - Knowledge of fault detection and alert systems - Ability to improve the current system as needed Brief outline is. Inputs: Analog 4-20mA input for level, pressure or temperature transducer Digital inputs for backup low and high float switches, pressure switches or system enable/disable input and a low flow switch Outputs: 1-4 pump outputs BMS volt free output for common fault Modbus RTU Serial RS485 connections for SCADA Function Features Multi pump control - Control of up to 4 pumps in any number of duty, duty assist...
We have a data logging software on windows C#, STM32 and our software adaptation Please read carefully below explanation and give your price. 1- STM32 bluepill or blackpill will be used. 2- 8CH STM32's ADC Reading and sending via COM port to the computer. 3- ADC reading and data sending speed 50k samples for each channel. Total 400k sampling in a second. 4- All STM32 cube and Keil codes will be given and all codes have to have explanations. 5- We have a C# based Windows software. Now, our software can not get data over 5000 samples. Our software will be UPDATED. I will share our software's C# Sln file and explanation of the software. You can create new software or update ours. BUT WHEN THE JOB FINISH OUR SOFTWARE SHOULD BE WORK. 6- The project can not be separate...
...and a proven track record of effectively empathizing, pacifying, and resolving issues for irate customers. Eager to leverage technical troubleshooting expertise and adaptability to new technologies to provide outstanding remote support and contribute to enhancing customer satisfaction. EXPERIENCE System Analyst, 05/2021 - Current HCL Technologies - Lucknow, India Project: SC Johnson-DWP-NORAM-EE-ADC/RDC Role/Position: Infrastructure-Delivery-L2-Analyst Answered incoming calls and logged all users' questions and issues accurately and efficiently into the ticketing system. • Successfully managed and resolved customer complaints, turning negative experiences into positive outcomes. • Demonstrated exceptional communication skills to empathize with irate customers and p...
...programmer to finish our firmware, they have delivered it to us and it seems to have errors. Project description: Iot device connected to App and server through MQTT (Already working). We are looking for a collaborator who has the following experience: -Programming in "C" language -Management and knowledge in IDF expressif -Management of free-RTOS -Knowledge of structured programming -Knowledge of ADC signals Jobs to finish: - Wifi local network configuration for Esp32 microcontroller - OTA installation (remote updates via server) - Installation of Radio Frequency module -Code check in "C" to repair it or program it again. We offer: Team of collaborators in all areas (Electronics, App. Backend) Daily support as required. Contact the professional who made the...
...data to an MQTT server. The logger will be recording 4-20mA signal sensor data. The frequency at which the logger will record data will vary, allowing for a variable data rate. Other Peripherials are available as (current consumption, temperature sensor I2C, EEPROM I2C, RTC I2C, I/O Expander I2C mainly). If there is no connection to the internet. Sensor log is stored in eeprom. While back online, send data queue packets. Arduino UNO + Ethernet Shield 2 + custom board for peripherals --> connected to ethernet to obtain internet (No wifi) Connect to Hive MQTT Broker online. Skills and experience required for this project: - Proficiency in Arduino programming - Knowledge of MQTT protocol and server integration - Experience with 4-20mA signal sensors - Understanding of d...
I am looking for an experienced freelancer to design a Peltier driver circuit for my project. The circuit should meet the following requirements: - Input Voltage for the board is 24V. - Using DAC to adjust the Peltier voltage and ADC to read the Voltage/Current of Peltier [I2C or SPI]. - All the interface with uC should be isolated. [Only schematic is required WITHOUT PCB layout] Skills and Experience: - Good knowledge and experience in circuit design and electronics. - Familiarity with Peltier driver circuits and their specifications. - Attention to detail to ensure the circuit meets the desired requirements. - Ability to provide clear documentation and instructions for the circuit design. If you have the necessary skills and experience, please submit your proposal with examples...
I am looking for a freelancer to help me develop an i/o expansion board for the NUCLEO-H745ZI-Q Development Board. The board should have the following functionalities: NUCLEO-H745ZI-Q Development Board, need to make a i/o expansion board 10 stepper motor controlls (isolated) 2 (modbus ) connectors 1 adc (4-20 ma) 6 pc817 inputs(limit switch) 2 optical encoder connectins 24( relay connector just , bhr connectors ) 24 input power supply 4-20 ma loop transmeter temperature sensor (universal) - Experience in developing i/o expansion boards - Knowledge of the NUCLEO-H745ZI-Q Development Board - Proficiency in designing PCB layouts - Understanding of analog inputs and their implementation - Ability to work within a specified time frame
...temperature is above 45°C. 4. Cells will not discharge when the battery temperature is BELOW -20°C or ABOVE 60°C. 5. Each cell is monitored utilizing a unity-gain differential amplifier with the amplifier output going into the PIC16. (PIC 32 or other PIC may be utilized for efficiency of design or code). 6. Each cell will be maintained when 3.45V or above by utilizing trickle charging technique of 20mA charge @ 3.65V. 7. Each cell must be monitored for temperature. If any temperature sensor determines abnormal temperatures, the micro will disconnect the three or four cells from the charging circuit and close an alarm output (relay dry contact, 1A @ 24vdc max current). 8. Once the batteries are disconnected due to low temperature, the cells are permitted to drop to ...
looking for someone who have very good knowledge of pic 16f15385 and write assembly code in mplabx to read 8 adcs and simulate this project in mplax x .
...2200 hours between replacements) and will stand by in a low-power/sleep mode, waking at 1 second intervals to communicate with the GATT client and service any commands/tasks. Top Level Functionality List --------------------------------- The corridor light button's functionalities include: - Monitor status of a button (momentary switch, SPST-NO) via digital input - Monitor device battery life via ADC input - Interface with an LED driver (PWM or I2C) to control 4 LEDs (RGBY) - Interface with an NFC reader to read NFC card ID in device proximity for a defined time interval after a button press event. - Interface with an E-Paper Display (EPD) to display patient information - Communicate via BLE as a GATT server (custom profile) with gateway (GATT client) with the following ser...
We have a custom board with some perhiperals. We designed a FW, and verify the interface with some ADC. We need to add a couple of small functionalities (an accelerometer via SPI and a DAC). this will requires minor modifications to 2 SPI, used to interface with an external microprocessor. Test and debug is also needed
I am looking for a freelancer who can assist me in finishing the integration of the LTC2495 Analog-to-Digital Converter (ADC) on the Arduino platform. I already have the evaluation kit from Analog Devices as well as I am working (with success) on my existing VSCode PlatformIO project that requires the integration of this component. I am trying to use existing drivers for this device but run into too many time consuming errors. I intend to send my code to you and if you can guide me solving it, that would be great. Skills and Experience Needed: - Proficiency in C++ programming language VSCode and PlatformIO w. ESP32 - Strong knowledge of I2C communication protocol - Experience with drivers, adresses, .cpp and .h librairies etc. - Electronics engineering skills, understanding of sch...
I am looking for an experienced STM32 developer to help with a small project. Specifically, I need help coding a specific function for an STM32L0 microcontroller. This is a time-sensitive project, so I need the job to be completed by a certain deadline. Experience with STM32 microcontrollers is a must, and familiarity with STM32L0, in particular, will be particularly helpful.. LCD, Usart, ADC and PWM
Stm32 adc read 8 channels 50k samples per second Usart interface
I am looking for a skilled freelancer to help implement a board level 4 channel, 2 wire 4-20ma transmitter for my project. The requirements for this project are as follows: Measurement Range: - The transmitter should have a measurement range of 4-20ma. Accuracy: - The desired accuracy of the transmitter should be around 1-3%. Hardware Environment: - The transmitter should be able to withstand harsh outdoor conditions. Ideal Skills and Experience: - Experience in designing and implementing 4 channel, 2 wire 4-20ma transmitters. - Knowledge of industrial settings and the ability to design for harsh outdoor conditions. - Attention to detail to achieve the desired accuracy of 1%. I would prefer to implement this with an I2C signal from my PIC32 - but ...
...samples per second. We will use USB port of STM. We need to see STM on device manager as UART and send a header value (header: one hex value and one int value.) Ideal Skills and Experience: - Proficiency in programming with STM32F103C8T6 board - Strong understanding of analog input and voltage measurement techniques - Experience in developing programs for high-speed data acquisition - Knowledge of ADC (Analog to Digital Conversion) principles and techniques - Familiarity with programming languages such as C or C++ - Ability to optimize code for efficient and accurate sampling The project involves: - Developing a program that can perform analog readings on 8 channels using the STM32F103C8T6 board - Configuring the board to accurately measure voltage inputs - Optimizing the prog...
Hello, i need respberry pi based data logger. it need to read 4-20mA and Rs-485 and have to upload to server. i have code to read data from RS-485 and i can upload data to server using python. i required code and suitable hardware
Still using Microsoft SBS 2011 as an ADC and Exchange Server. Had this Hyper-V hosted virtual server crash, rebuilt from a backup. Exchange 2010 is working. Everything on the server is up and running except Outlook Web Access. Need OWA to work.
...circuit when they are below 2.5V. Disconnected cells will be bypassed in the charge circuit. Each cell is monitored utilizing a unity-gain differential amplifier with the output going into the PIC16. Each cell will utilize a constant current method between 2.5V and 3.65V at 300mA maximum charge current. Each cells will be maintained when 3.65V or above by utilizing trickle charging technique of 20mA charge @ 3.65V. Each cell will be disconnected from the 4-cell series if they are below 2.0V, or above 132°F. If any cell is disconnected, the series line will bypass that cell. - Operating mode when 24vdc power is NOT present: All 4 cells will be connected in series regardless of voltage or temperature. - All battery connections and disconnects are to be gate-driven device...
