Mqtt mcuemplois

I am going to create my LEDs. The job consists of designing a very simple MCU circuit that uses PWM to slowly pulse two white LEDs (note that only one LED is shown in the diagram below, but two are required) for me.

i need socket based listener project with c#. This project includes multiple client support. All client send data to server and recive data from server. Multithread programing methode must using. Client send very simple message . All client use embaded mcu and wizchip 5500. The program will communicate with a maximum of 50 clients. Each time a client is added to the program, a user interface and its own ip number will be set. Certain commands will be sent to the clients with the button. The incoming data will be 30 bytes in total and will be saved to the SQL server after filtering and shredding according to our request.

Create a schematic of a USB cable that will connect to SIM800l pins and will be able to deliver UART and audio via the USB to MCU (pc linux )

Create a schematic of a USB cable that will connect to SIM800l pins and will be able to deliver UART and audio via the USB to the MCU (pc linux )

Hello Everyone, I need a developer to work on MQTT protocol and develop an API on AWS infrastructure to accept some values like GPS coordinates and other such values from an electronic device and to be stored in database on AWS infrastructure. Those who can and are interested in working on this startup project.

We want to us Industry PC or tiny hardware like Raspberry pi to act as mini gateway. all the sensor data and device data will collect into this gateway. So we want to create one web-server to: 1- mini-SCADA page that use SVG to show the data connect from sensor/devices. (also can do control/configuration for devices) 2- users can choose charts and data source to do some kind of custom p...to create one web-server to: 1- mini-SCADA page that use SVG to show the data connect from sensor/devices. (also can do control/configuration for devices) 2- users can choose charts and data source to do some kind of custom pages. 3- users can do configuration/settings for each device /sensor. 4- when alarm and event happen, will have event and alarm list to check in detail 5- data can get from mqtt...

Looking for Embedded designer who has better knowledge on GPIO protection circuits and MCU.

pcb and software development for a remote sensor. The remote sensor needs to measure a 0-5v linear sensor with 12 bit resolution. power supply for the connected sensor - 5VDC 12mA. This can be off while sensor is not reading. LoraWan (Australian standard) communication with possibility...measure a 0-5v linear sensor with 12 bit resolution. power supply for the connected sensor - 5VDC 12mA. This can be off while sensor is not reading. LoraWan (Australian standard) communication with possibility of having 20+ sensors on the same network. Battery powered - ideally 12mths with 30min updates. - Updates include sensor value and battery reports via gateway to TTN or direct to cloud MQTT broker. PCB gerber + drill files ready to be sent to manufacturer (PCB Way/JLB etc) All components ...

I need test program for DE10-Lite board for UART communication. if you have experience, you can work remotely on my pc what was connected with the board. Quartus 18 was installed already with USB-UART converter. Bid on this project if you can do this. #1. Nios 2 UART test #2. communication with MCU (MCU part firmware prepared)

...tracking solutions the information as follows:- Device No.1 -- GSM module : EC21-EC , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 12V --Microphone junction -- INPUT/OUTPUT : GPIO, I2C, UART ---------------- Device No.2 -- GSM module : EC21-EC , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 5V --Microphone junction -- INPUT/OUTPUT : GPIO, I2C, UART ------------- Device No.3 -- GSM module : SIM7000C , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 12V --Microphone junction -- INPUT/OUTPUT : GPIO, I2C, UART ------------------- Device No.4 -- GSM module : SIM7000C , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Batte...

Hi, I need a basic app for B4R (for ESP32 board) as a client (I have a working Arduino example if needed), and a B4A (BASIC for Andriod) as broker app again just a simple working model. The B4R (BASIC for Arduino) app needs to just send a short message to the broker every fixed period of time. The broker sends a received confirmation back to the client. I do have working code for the ESP32 in Arduino, but for the project I need it in B4R.

Need to develop bootloader code using stm32cubeIDE which shall support reprogramming the application area in the MCU over UART ports. STM32G070 can be invoked to BOOT mode by Master controller.

For an idea i have i am in search for a knowledged and skilled programmer which can provide me a running code for a NodeMCU to count the number of WiFi STA's seen adjacent to the MCU. The output (an integer) will need to be provided by serial output. The code provided needs to be fully documented and described in detail for my knowledge. This is a project which potentially scale up to more functions in the near future. For this reason a long(er) term relationship is foreseen.

Project 1: In an IOT end-to-end solution, security is a priority and it plays the major role. MQTT protocol is implemented for communication. I will provide you with the working code. Everything so far is written in Python. You can integrate with the current work. Task 1: Using Oops concept, design a Network Intrusion Detection and Prevention System. To detect and prevent anomalies in the network such as Brute Force Attack, Heartbleed Attack, DoS Attack, DDoS Attack, Web Attack, zero day attacks, etc. And to monitor the network traffic. The code must be written in Java. And to implement it in python, it should be written in Classes. The code must be laid out in a pipeline format from end-to-end. Please use Polymorphism, Multiple Inheritance, concepts. You will be working with th...

Adjustable (power or voltage or current regulation) neon lamp (4.5kV, 5ma) transformer: - Circuit design, PCB design, - Firmware development. STM32 MCU, 3 port network switch, Modbus/TCP communication, 20.4-28.8VDC supply, - the complete set of features to be defined before starting the project, - prototype and delivery, - must use Altium Designer.

I need a person experienced with easy eda He should design a small circuit which has node mcu as the controller and which will include 5 digital input which should accept 5v as well as 12 v ( proper voltage divider should be given) 5 analog output connected to 5 nos 12 volt spft relay which should be terminated on screw terminals 1 analog input All input/output should have status led All parts should be checked from amazon for availability

Adjustable (power or voltage or current regulation) neon lamp (4.5kV, 5ma) transformer: - Circuit design, PCB design, - Firmware development. STM32 MCU, 3 port network switch, Modbus/TCP communication, 20.4-28.8VDC supply, - the complete set of features to be defined before starting the project, - must use Altium Designer.

Adjustable (power or voltage or current regulation) neon lamp (4.5kV, 5ma) transformer: - Circuit design, PCB design, - Firmware development. STM32 MCU, 3 port network switch, Modbus/TCP communication, 20.4-28.8VDC supply, - the complete set of features to be defined before starting the project, - must use Altium Designer.

...passives for prototype build unless absolutely necessary to go 0402. I anticipate the design will fit into 100x50mm. - F9P UBlox receiver with SMA connector and appropriately designed 50 ohm RF antenna trace w/ shielding. All IOs connected to MCU. note: this connects to an L1 and L2 dual band antenna - microSD card socket connected to MCU via SDIO (e.g. MEM2067). Include card-detect pin. - 3 x IMU sensors (ICM-20948) connected by single SPI from MCU plus. Al IO inc interrupts - RJ45 magnetic socket with appropriate phy/transceiver connected to MCU - 25MHz HSE oscillator (assumed to be required for ETH) - STLink / 3-wire debug and headers - 12-20V DC source. Power regulation and filtering as appropriate. (e.g. 5V SMPS with appropriate filters to minimis...

HI , I need a embedded developer who can recreate the eval board and add a mcu with ethhernet for sending out data. please refer to to understand the product. ST has an eval board , the developer has to create the same using the design and gerber provided by ST . The developer has to send the data coming from the device to LAN using a mcu with ethernet. the new MCU needs to have a interface to set the IP address of the devices and the destination ip address and port . The following features are required in the rfid reader . there will be 2 versions 1. fixed reader 2. mobile reader The fixed reader is the 1st priority The product should have the following features 1. 2 RF antenna 2. The main antenna should have 4 GPIO ( 2 input 2 output

We are developing a wearable device with the following details :- -- Bluetooth : CC2541-M0D -- Gyro sensor -- ARM MCU : STM32L073RB -- Max sensor : MAX30105 -- Battery Lithium-ion -- Headers : GPIO, I2C, UART ---------------- - The PCB should be as small as possible - The project should not take more than 10 days. - The output of this project is Full Hardware design include ''Schematic, Layout, BOM, Gerber files''. - And the first payment "50%" will be made after receiving all the output and the remaining 50% after printing the PCB and checking that the board is professionally designed and has no issues. - Tool preferred is Altium Designer.

We are developing a 4 tracking solutions the information as follows:- Device No.1 -- GSM module : EC21-EC , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 12V -- INPUT/OUTPUT : GPIO, I2C, UART ---------------- Device No.2 -- GSM module : EC21-EC , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 5V -- INPUT/OUTPUT : GPIO, I2C, UART ------------- Device No.3 -- GSM module : SIM7000C , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 12V -- INPUT/OUTPUT : GPIO, I2C, UART ------------------- Device No.4 -- GSM module : SIM7000C , -- ARM MCU : STM32F103RCT6 -- Gyro : MPU6050 -- SD Card -- Battery 3.7V -- Power System : 5V -- INPUT/OUTP...

Necesito subir datos de un sensor de temperatura atraves de una sim800L a thingspeak. yo solo he podido enviar mensajes de texto. puede ser con comandos AT o bien con Mqtt.

I would like to make a 5 esp32 bassed system. 4 nodes are connecting each other using mesh network and this mesh network is connected to 5th node that is master node this master node is connected to mqtt server and send data to mqtt server. so I send a data to any one node of mesh network through mqtt server.

Diverse Regler und Sensoren für die Kältetechnik Entwickeln und Programieren Mit Raspi, ESP32, MQTT, SQL, ModBus .........usw.

I need to create. a schematic and circuit board for mini pump contoler. Schematic will consists of: microcontroller PIC32MM0064GPM028 AD converter HX711 pressure sensor wired to PCB MD-PS002 I2C display SSD1306 32x128 piezo electric beeper Function Device will be powered with 9V battery. Level of battery will be monitored by ADC on MCU. 6V mini-pump must be switched on an off by MOSFET transistor PCB must be as small as possible

C/C++ Programmer, for Embedded Control system, Stepper motors on STM32 MCU - Control Stepper motors, Develop HMI for LCD Display - Working knowledge on various protocols I2C, SPI, CAN etc - Experience on OpenSource hard like Raspberry Pi, Ardiuno etc is added advantaged

I I am looking for a professional to create a base project where I will configure a set of data (DB) that should be sent to the cloud using MQTT. The goal is to create a server that will be hosted in my company running some edition of open source linux or windows, to be defined. This server must have an open SQL database where the information should be divided by "plc client". With PHP application on the server, there should be a user register with access definition where I can assign which PLCs the user will have access to. The user having access to a certain bank, he must view a basic Dashboard with the information of the data received from the referred PLC. It will be a differential to create a report with filters that allow the user to identify the operating status ...

we need to setup and debug mqtt on golang

project is about mesh network, have to connect 4 nodes in a network, and may try to add mqtt inside of 1 node Software - arduino Device/node - NodeMCU ESP8266 Programming language - C language

I am looking for someone that can choose a phone app preferably own tracks which will collect sensor data, which the the app data can be published to a mqtt broker which will then put the data into a database. After this is done a website needs to be created which can query the database and display the data.

1)To shrink the reference design below to fit a small (09x09x05cm) enclosure. 2)To add GSM capability to the design 3)To do it built-to-print 4)To provide all the source code and files (schematic, gerber, MCU code ... etc) 5)This meter isn’t read manually so no need for an LCD or buttons 6)Pulse (active and reactive power) must be there to test the meter The reference design is:

We need IoT Platform based on Grafana/ Microsoft Azure Cloud facilities: 1. Gateway Management 2. Dynamic Dashboard 3. Data Manipulations 4. Scheduled Reporting 5. Alerts on Phone or Email 6. User Management (like:Admin, Manager and End-User) 7. Unlimited clients and Dashboard 8. Protocol: MQTT (Gateway Side) Grafana Info: Notes: if you have ready-made solutions than please let us know .

IOT project 1. After scanning the QR code if payment is made then this will rotate the servo motor 180 degree (this should be configurable). 2. After scanning the RFID card code if payment is success then this...shown and will be tested thoroughly before making the final payment. 3. Project should use the most basic required hardware only, mean: should not use extra hardware which is not related to project ( example if ESP8266 is only required ,then please use that rather than full node MCU) 4. Need to answer question like how to add multiple motors (scaleable) Delivery would be made in any possible language preferably coded in Arduino software and IOT board used should be the cheapest available in market (example : Node MCU).please suggest if there is other way to build th...

I have a dashborad programmed with php that captures signals from different equipment through wifi, stores in a MySQL database. The coomunication protocol used now is that the server has to seek updated data from the equipment periodically. THat has to be reversed using MQTT so that it is the equipment that would update the databse every time there is new data.

Hello.. Kindly read the description carefully and then bid on it. This Platform has to be developed on 3 phases. Phase 1 :- Android App Phase 2 :- iOs App Phase 3 :- Web App Technologies for Entire Application Include :- 1. Node.js 2. Javascript 3. Django 4. HTML 5. Mongo 6. REDIS 7. Elastisearch 8. Java 9. SWIFT 10. AMQT & MQTT 11. WebRTC 12. Micro Service Architecture 13. Docker 14. Mailgun for Mails 15. Any other if required during development. The basic feature of this app will be like ticktock..

Hello.. Kindly read the description carefully and then bid on it. This Platform has to be developed on 3 phases. Phase 1 :- Android App Phase 2 :- iOs App Phase 3 :- Web App Technologies for Entire Application Include :- 1. Node.js 2. Javascript 3. Django 4. HTML 5. Mongo 6. REDIS 7. Elastisearch 8. Java 9. SWIFT 10. AMQT & MQTT 11. WebRTC 12. Micro Service Architecture 13. Docker 14. Mailgun for Mails 15. Any other if required during development. The basic feature of this app will be like ticktock..

Hello.. Kindly read the description carefully and then bid on it. This Platform has to be developed on 3 phases. Phase 1 :- Android App Phase 2 :- iOs App Phase 3 :- Web App Technologies for Entire Application Include :- 1. Node.js 2. Javascript 3. Django 4. HTML 5. Mongo 6. REDIS 7. Elastisearch 8. Java 9. SWIFT 10. AMQT & MQTT 11. WebRTC 12. Micro Service Architecture 13. Docker 14. Mailgun for Mails 15. Any other if required during development. The basic feature of this app will be like ticktock..

...entered when not working with dhcp. If working with ethernet, the webserver should be reached over dhcp but also a specific ip can be entered when not working with dhcp. The webserver should be used to set up the device. Enter a couple of parameters that are needed eg. for setting up an mqtt subscribe to specific topics of an external MQTT broker, ntp server for time, etc.... These parameters are then used in the ESP32 to act on several things. The ESP32 should send a couple of messages to our cloud server with MQTT messaging. ESP32 is as mentioned connected to an ATMEGA328 over CANbus. The ATMEGA board is measuring a couple of parameters with ADC's over I2C. This software should also be written. On the atmega board there is an additional canbus controller tha...

Hi, We have a requirement of PCB design for ESP WROOM 32 chip. The Esp32 design should be included with the SIM800C chip. We required all Pinouts as same in ESP WROOM 32 MCU Module along with TTL connection. Also, the input power should be 3.7V and a battery connector should be required. Most import this PCB should be compatible for Arduino. Kindly find the related documents.

We want a Sensor based Controller Card for Automated Sanitizer Dispenser Machine, Card should be robust and economic too, We need Pump to start when Hands detected and dispense the S...Dispensing), some other important features to be developed (i.e. Over Load protection and Indication, Reverse Polarity protection, Short Circuit protection) We want to get this developed around low cost MCU, such as STM8S003F3, PIC, Atmel, Renesas RL78/G11, We prefer using STM8S003F3 it’s low cost and easily available, rest all MCU’s are short in market no a days. The Scope of work will be: Coding of MCU, Schematic, PCB Gerber File for Fabrication and Production. Things to take care of: Minimal Components used, Low-cost Devices, PCB Size to be small, All components should be Throu...

Hello, I need an Arduino sketch for the ESP32 to connect the esp32 to the AWS IoT Core plataform using MQTT protocol and the SIM800L GPRS board. I need to send in device information and listen to the platform continuously to start a printer. I will print what is written to her. I just need communication methods, connection status, reconnection, sending data, and the continuous receipt of data. I need that when the connection falls, I have a return of some method, so that it reconnects and it continues working.

...required: - Basic C++ - Understanding of Arduino IDE. - General knowledge of how i2C works, specifically the SSD1306 OLED displays and i2C multiplexers. I am using a teensy 3.2 + small 128x64 OLED Displays (SSD1306) + a TCA9548A i2C multiplexer to be able to use this library: 1 - and do this: 2 - But with more than 2 oleds, I have 4 i2c small old screens so I want to use the TCA9548A i2C multiplexer and get it working. The only part of the example that needs to be changed is the "Display Interface" as described here: 3 - I just need the above code portion to be finished and for the example code in link

I have built a home automation project with raspberry pi and esp8266. The mqtt broker is installed on the raspberry pi computer and all esp8266 are mqtt clients. I need an mqtt client that reads data from the database and publish them. This client must also be able to receive data and save them on the database. The code must be written in php or javascript.

I need work with node red for: - Develop a gateway modbus tcp protocol to mqtt with: - Graphics interface for config the gateway: 3 tabs (config, cloud, modbus) - See the picture for config tab - For connect to cloud use mqtt - Modbus tab is necesary for config de request

...We are in remote area therefore, we don't have any problem if we tweak the dB to maximum for sending and receiving. 3. Gateway should send all messages Received to MQTT Broker 4. Gateway should be able to Send messages through the message received via MQTT 5. Gateway should be able to transmit general message to all nodes at once or to a specify node. 6. In case the message is sent to a specific node than the Gateway should also receive feedback from the Node that the message was actually received. In case, the message is not received by a specific node, then the Gateway should try couple of time and then send a message via MQTT to an application that the message to a specific node failed even after multiple trial. Node requirement: 1. There are around 2000 Lo...

The job is to code the following features into a ESP32 controller: - Make a WIFi hotspot functionality. I suggest that a standard implementation is used that include WPA. The administrator will login to the device using , or similar, and then add SSID and password to connect the router. I assume that this i available on Git Hub. Every ESP32 u...will connect his phone to the ESP32 wifi. He will then press a button. On pressing the button, the controller will light a LED and also read the value of the sensor. Once read, the controller will display the value. If the user press the button again. the process is redone. After 10 seconds, the led is turned off and the display is reset. The job includes the design of a PCB. The ESP32 is a Node MCU. The unit is powered from a USB cable.

hola Busco un desarrollador cordova con amplia experiencia en mqtt, especialmente en el plugin cordova-plugin-mqtt, deseo realizar la conexión mqtt en plataforma ios, en android ya está realizada y funcionando.

Veuillez vous inscrire ou vous connecter pour voir les détails.

I am using the NRF52832 MCU in a project. I want to write the data from ADC to the buffer on RAM with the help of DMA, then read this buffer and send it to the client via BLEUART. The sampling rate should be 1kHz and the time between all sampled samples should be exactly 1ms. In order to be compatible with the rest of the project, the project should be developed with Arduino IDE. SUMMARY: (Please look the attached schematic) * NRF52832 MCU should be used as microcontroller * Arduino IDE should be used for development * All libraries should be in editable text format (non-binary) * Sample two channels simultaneously, * With sampling frequency of 1kHz and 14 bit ADC resolution * The DMA controller should control the ADC’s without using main CPU for smooth sampling * Writ...