Arduino modbus rs485pekerjaan

Estoy buscando una persona que tenga experiencia desarrollando proyectos con arduinos, con el fin de que me pueda a ayudar a implementar una Alarma con sensor PIR que funcione con Arduino y un Modulo GSM900, cualquier persona que este interesada en el proyecto le puedo brindar más información al privado.

Hi Abu Sakib, I need help reviewing a circuit that I designed, and develop the arduino code. Brief below: Inputs: Thermal sensor (on/off switch) Magnetic sensor (on/off switch) Buttons (3 buttons) for controls PID controller Output: Buttons LED Stepper Motor 2 relays (one for pump and one for boiler) Controls: -Control the stepper motor rotation and speed -Ensure that temperature reaches a certain threshold before control buttons become active Is that something you can help with?

Hi there, I have an ESP32 with a simple arduino code that exposes two characteristics, one push notification and one read/write characteristic via BLE, see attached. I need a React native app (Visual studio code with Expo) that via a button press scans for this device and connects to it. Once connected, it should display the value notified from characteristic 1 in a simple text and continously update it when a new value is received. It also needs a button that writes '0' (zero) back to the read / write characteristic. Thanks! Marc

I am looking for an experienced developer to help debug an Arduino code. I am interfacing a 3electrode sensor with LMP91000 AFE then getting the readings via the Analog port of ESP32. The readings so far are not satisfactory/accurate. I am attaching 4 files which may give you an idea of the issue.

I need some help with CCtalk and to create an interface for a coinchanger. This is a project that is very close to what I want to do: It does not have to be arduino. ESP32 is an aternative. PIC another. I have some Arduino skills and are able to create the setup in Sweden. Some of the development will be thru TeamViewer. You need to have a CCtalk host to be able to verify your work. I will copy your work and apply it to a Comestero coinchanger. The task is to have 4 buttons. * 10 SEK * 20 SEK * 50 SEK * 100 SEK (option is 5 buttons and 200 SEK) When a button is pressed the coin value is sent to the Comestero coinchanger and 20SEK = 2 tokens from the coinchanger. The buttons will then be replaced

I need an Arduino Nano sketch for PWM control a LED driver with 31x LEDs using I2C communication. We want to connect a prototype PCB with groups of LEDs and check all are working according to the following functionality. The LEDs need to be controlled individually and as groups. Functions 1: off 0%-> on 100% (ALL LEDs) Functions 2: breathing/pulse (ALL LEDs) Functions 3: breathing/pulse (Each group) Function 4: turn each LED gradually in order i.e. a LED string (group 7) Function 5: turn each LED on gradually 1 to 7, then 7 to 1. (group 10) (can explain this later) Group 1: 2x LEDs Group 2: 1x LED Group 3: 1x LED Group 4: 1x LED Group 6: 10x LEDs Group 7: 5x LEDs Group 8: 1x LED Group 9: 1x LED Group 10: 7x LEDs Group 11: 2 LEDs The LED driver is IS31FL3236A-QFLS2-TR (4...

I want a design and Arduino sketch that will allow me to power a small DC Pump that will have a flowmeter attached. I want the flow to be adjustable based on the following parameters: Temperature of medium It can be adjusted via manual or automatic means.

need to install os, set up a python script to 1) update database, 2) photoelectric sensor on gpio pin // detect car 3) usb qr code // scan qr code 4) and an rs485 controller for the gate on gpio pin // open the gate barrier this is the board this error m getting root@bpi-iot-ros-ai:/home/pi# gpio readall Bus error not able to access gpio pins

I was working on a project with an engineer but he couldn’t finish it because I wanted to change the circuit From Arduino to ESP32 I have the codes he made for the Arduino I can share it with whoever can help on this

hello this is kim from korea i need a custom arduino board that has mega2560, uproading chip(ft232 or atmega16), micro-b usb connector the board size is 65mm x 70mm maximum and i need the way to uproad arduino bootloader on the board(atmega2560) and i have a pdf file that including pins arrangement and the pins use 1.25 pitch connector(ex, molex-53047) so in short 1.arduino mega custom board(just changing pins arrangement on the arduino mege mini pro board) board size is 65mm x 70mm maximum(less size is okay) board has 1.25mm pitch connectors 4.i need the way uproding bootloader best way is that you make gerber file and order the board and test it -but if you can't order the board just give me gerber file and i order the board and solder the boar...

Hello, We intend to find somente who have already develop a pH and electrical conductivity transmitter, in order to communicate direct to these sensors and convert its signal do modbus rtu/RS485. These sensors are used for liquid analysis (wastewater application). Best regards

hola necesito un acompañamiento para configurar juntos un gateway Waveshare RS485 to ETH - necesito configurarlo en modo tcp client de modo que envie datos a un socket en internet - necesito configurarlo en modo http para que envie datos a un sitio web de pruebas en internet - necesito hacerle solicitudes modbus TCP desde internet a dos esclavos, que el gateway las convierta en modbus RTU y haga las solicitudes a los dispositivos que ya tengo - necesito colocarlo en modo transparente y que envie datos seriales a internet

Sila Dafter atau Log masuk untuk melihat butiran.

fixing Arduino code that wont load and build a wiring diagram. i have all the lines of code just needs cleaned up and a wiring diagram drawl for Arduino/adafruit this is the link we need tp program I have all necessary compounds

arduino get data from airthings api. Using ESP8266 or ESP32, authenticate with Airthings API using oauth2 method and read/return device variables please check your skill level. as the previous freelancer was not able to finnish this work. client ID: b40f4f82-d508-4fb2-8731-9ee4e0000946 <------------ UPDATED client Secret: 7c6edea0-7874-4232-b8c8-09243cc4391c <------------ UPDATED Feel free to experiment if you are able to grab the data from the API before you commit. The relevant data is shown in Insomnia3 file.

I am using IMU WT901- witmotion, #2 Dc motors 300 rpm 12 V, Lidar for obstacle detection, ESP32 microcontroller, and suitable motor drivers. Need to implement PID via matlab to interact with arduino enviroment.

I want LED dimming controls through touch screen buttons using PWM and STM32 or Arduino.

It's about medical waste segregation using sensors. More details to be shared on contact.

Looking for someone who is proficient in C/C++, Arduino, and CAN coding. We need to create/send/display our own CAN messages for testing using the ESP32. You will be provided with some code to get you started. Chats are welcome to learn more.

I want to print web server data received from using arduino and esp8266 through AT commands. Manually its printing data when sending AT commands one by one but in coding its not printing data. void InitWifiModule() { sendData("AT+RSTrn", 2000, DEBUG); //reset the Serial1 module. delay(1000); sendData("AT+CWLAPrn", 1500, DEBUG); //Check availabe WiFi APs delay(1000); // if (WiFi_Connect() == 1) { // ("ESP8266 connected to WiFi"); // (); // } // sendData("AT+CWMODE=1rn", 1500, DEBUG); //set the Serial1 WiFi mode to station mode. // delay(1000); sendData("AT+CIFSRrn", 1500, DEBUG); //Show IP Address, and the MAC Address. delay(1000); sendData("AT+CIPMUX=1rn", 1500, DEBUG); //Mul...

Se necesita construir una placa de circuito que tenga un microcontrolador ATmega328p, una entrada fuente (Si se puede POE), la misma debe estar conectada a un modulo ethernet w5500, con dos conectas para un sensor de voltaje (un modulo)

Hi Illia A., ive seen your past project "Vending Machine Telemetry via DEX/ MDB protocol using Arduino and GSM shield" im interested because i want to get the data(sales,errors) of the vending machine and transmit it via sms

Programming 4 analog inputs, about 10 digital inputs, and 14 digital outputs with constrains conditions. Handle a serial bus RS485 comunication with 8 3rd part devices, it's MW power supplies that turn on/off magnetrons cooled by circulating water circuit. PLC and HMI are Xinje brand (similar to Mitsubishi), 2 AI are only temperature exhibition, and the other 2 is to drive a vacum pump on a range previously stablishe by HMI on manual mode. Auto mode has 10 stages, programable by recipes which can be loaded on set point values. The complete system is 2 independent chambers (4 magnetrons each one). There are alarm conditions that stop process like overtemperature, rotation interruption, vacuum lost, etc

I need a master / slave setup of two dc motors with encoders both motors need only turn in one direction the master must have variable speed control and slave follows the master i have the motors but need list of component's need how to wire (drawing) and a sketch (arduino smallest one that will work)

I want to build an portable low-cost open-source wireless spectrophotometer based on the development done by Katrina Laganovska. I want to use her Arduino code and install on an Arduino NANO 33 IOT board to support the transfer of the sensor data over wifi to an external MQTT broker. I have the hardware and require an experienced Arduino programmer to develop the relevent software changes. See Katrinas document on how to implement her solution. However I do not want a mobile app or a desktop app, I just need to take the sensor data from the arduio nano iot 33 board and transfer to an MQTT backend broker.

We need a PCB made with Gerber File, BOM and Schematic. The PCB size and component layout should match our drawing, which will be supplied as a DXF file and attached to this project. The components of the PCB includes the following items - 1) Firebeetle ESP32 board 2) Raspberry ZERO board 3) Raspberry PICO board 4) TTL to RS485 board 5) GPS Receiver board 6) Light Sensor board 7) LED Hub board All the above components are to be connected as per our component overview document attached to this project. We will provide wiring connection details for each of the 7 boards.

Hi Sunish S., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

create arduino code to: connect ESP32 or ESP8266 to airthings API using oauth2 method and return device values device1 serial: 2930005798 device2 serial: 2989001642

la comunicacion empezaria con lecturar 2 sensores en arduino y enviarlas mediante modbus a tia portal plc s7-1200 y de tia portal enviarla a node red y posteriormete a ubidots

La idea es la siguiente quiero leer 2 sensores de arduino y enviarlos hacia el plc s7-1200 mediante comunicacion modbus y del plc que en este caso seria tia portal enviar los datos a node red y de node red enviar los datos a Ubidots

Need to have an E Ink screen be updated with QR codes that can be generated from something like (would prefer to use internal QR generator if possible) and have that QR code be displayed on the E ink screen. LTE Hat for the Arduino for updates over cellular and BLE for the times that cellular signal is not available as a backup.

...by suggesting solutions and assist me in the implementation. Below you can find an overview of the various integration that I would like to have: 1) What hardware to use to host HA 2) Ajax alarm integration: - SIA Alarm on HA - Ajax UART Interface 3) Underfloor heating - Smart switches controlled by HA - Room thermometer + presence sensor - Room thermostats to control? 4) Sabiana A/C - Sabiana ModBus integration - Same thermostats integration 5) Audio - Microphones integrated in the BTTicino - Control lighting and other events  - Amplifier connected to speakers 6) Water meter - Find smart water meters (how many?) and integrate 7) Energy Management - Tesla battery - Solar Panels  8) Ubiquiti Protect - Remote backup for cameras In you proposal please con...

Hello Mohammed I would like to work together in a Arduino plant project. Some parts can be local, some in GIT, some by remote desktop. I would always ask if you are comfortable and describe before as good as I know.

Hi I need an arduino code for a little project I'm working on. It involves a brushless motor, an esc and a momentary switch. The plan is: When I push and hold the button the motor starts to spin at low speed(30%) until i hold the button or when the button is released for less than 1 second and pushed and held again than the motor speed goes up to mid speed(70%) same thing for the high speed (100%). After high speed is reached then no speed changes with the "less than 1 second release". When the button is released for more than 1 second at any speeds than the motor stops. When it stops the routine starts over from low speed. Basically 3 speeds. Thanks for you help

Arduino APP in ESP8266 + MegaPro - please see PDF

I need small help in generating PWM signals using 3 hardware timer interrupts, 2 timers for two 6 - 9kHz variable frequency fixed 45% duty cycle @ 180degree phase shift with each other, and 1 Timer for 100kHz fixed frequency, variable duty cycle from 10% to 80%.

we want to develop a firmware on Raspberry pi Connected to single screen via hdmi On display there are 4 values displayed, And a countdown timer (3 minutes for each round). the values are being sent form another software already built. Communication is local, and is still not set but will choose the easiest way, most probably RF, meaning raspberry pi should parse serial messages.

I need a PCB designed that simplifies a current working design of mine. I need to have micro USB data and 5V power input to power and feed data to two arduino pro micros (need to be integrated within the PCB design) and a small LCD screen. Happy to discuss more details further.

I need a person to write a base if arduino code for my project

Budget= 100$ You need to read weighing scale reading using arduino via UART protocol, similarly you need to control pump(start, stop and speed commands) using arduino via UART protocol. Manuals of pump and scale are attached. You also need to take user inputs from lcd touch screen Summary: 1) Read weight values from weighing scale using arduino 2) Give start, stop and analog speed commands to pump 3) take user input from touch screen Thanks

Need to create one project in Arduino related to GPS control.

I want to develop a low cost Arduino board. It should look attractive and can be manufactured in India.

Hello, Is there a way to mine on micro controller such as a arduino or esp8266? If so I would like to start a project to make a mining pool for micro controllers.

...then only respond. ---------------------------------------------------------------- We need someone to help conduct tests (non-destructive) on some of our recently developed embedded PCBs. The PCBs are in India so a testing agency in India is preferred but not required. Actual list & specs of these systems will be provided to short listed candidates. The PCBs operate like a PLC, have several RS485/232, TCP, Canbus ports, along with AI, AO, DI, PWM etc. Some of the testing will be stress, RFI, Temperature, humidity, electrical noise, vibration, PID control etc. Provide us the testing equipment and infrastructure you have. Also, list any other testing that you recommend should be done and test activities you cannot provide from our list. This is a temporary contract work. ...

Need Arduino sketch using QDEC for optical encoder with A,B and index. need to set counter to zero at index be able to get current position at any time. using on stepper with 1000 ppr and optical encoder also 1000 cpr.

hello. I need an arduino button counter to be displayed on a LCD screen. budget is 20€ for the delivered sketch.

My son requires a schematic to follow for building a working example of switching a positive output to a 100w 12v bulb using a MOSFET or transistor with a 12v trigger. ( NOT from a board like Arduino. )

Looking for a CODESYS programmer to develop a basic HMI with MODBUS inputs

I'm having a difficult time making work this sensor: I'm trying to read it with a rs485 to ttl converter and arduino nano but the sensor is not working fine. It works when reading just 1 of the 7 parameters but when using more it gives incorrect readings. I've been reading a lot in forums and it seems to be a pretty usual problem but could't solve it yet. I know is maybe too much specific and you'd need to have the sensor but I risk myself and post this job. Afterwards, I need that data to be transfered to Arduino MKR 1310 to make it connect to an already existing LoraWan connection.

The video should play anytime motion is detected using a GPIO motion detector. It should only play the video once every 5 minutes (may change in the future). Else the PI screen should display a logo. I'm testing these GPIO motion detectors https://www.amazon.com/DIYmall-HC-SR501-Motion-Infrared-Arduino/dp/B012ZZ4LPM/ref=sr_1_1?keywords=gpio+motion+sensor&qid=1665868407&qu=eyJxc2MiOiIwLjAwIiwicXNhIjoiMC4wMCIsInFzcCI6IjAuMDAifQ%3D%3D&sprefix=gpio+motion%2Caps%2C157&sr=8-1