ESP32 RS-485/MODBUS firmware for sensor interface

We have an environmental control system which currently uses i2c sensors for temperature and moisture. We would like to change this to RS-485 sensors. Our microcontroller is ESP32-WROOM32E. Our development environment is Arduino IDE.

We are going to use these sensors ([login to view URL]) and require firmware on our main board to interface with them. We require classes or methods for our main firmware routine to call "getTemperature" and "getMoisture" which will return the temperature in degrees C, and the moisture in a format that the sensor can deliver easily.

The firmware produced by this project will need to run stand-alone on an ESP32 dev kit (with a serial break-out such as MAX485) for us to test the new sensors, and then we will later incorporate it into our own firmware and PCB.

We will run two (or more) sensors on the same serial bus, each sensor will be programmed with two separate addresses.

Testing: It would be best if you can confirm a working solution with your own hardware (ESP32 dev kit, break out board and a sensor simulator), or if that is not possible, provide a firmware solution for us to test here where we already have the hardware.

Summary: Write stand alone Arduino-compatible firmware for ESP32 to interface with multiple RS485 sensors.

Habilidades: Eletrônica, Microcontrolador, Arduino, Engenharia Elétrica

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Acerca do Empregador:
( 3 comentários ) Cardigan, United Kingdom

ID do Projeto: #29034804

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Hello, Chris This is Georgi, I am ready to start firmware developing for your project. Wanna to discuss about project Best regards Georgi

£50 GBP em 7 dias
(6 Comentários)

8 freelancers estão ofertando em média £177 nesse trabalho


Hi I am experienced electronics engineer with more than 14 years of experience. I have read the details and would like to know more about it. Please get in touch to discuss it further Regards

£400 GBP in 5 dias
(260 Comentários)

Hi I am an firmware developer who are familiar with arduino and C programming. In the past I have developed the various sensors for smart greenhouse. I can provide you nice code for converting to RS485. Looking forwar Mais

£150 GBP in 7 dias
(24 Comentários)

Dear Sir, We are a small R & D company, based in Bulgaria, Europe. We specialize in developing Embed systems based ST(STM32), Microchip (Atmel )(PICs,AVR,Atmel ARM) and TI (MSP430) MCPUs and peripheries. For our mobi Mais

£195 GBP in 15 dias
(10 Comentários)

Hello sir I have read your requirements and got very much idea what you exactly wants i am an experienced IoT developer with good knowledge of the arduino and sensor. I can help you out with the project Let discuss mor Mais

£222 GBP in 10 dias
(2 Comentários)

MASTERS IN SOFTWARE DEVELOPMENT AN EXPERT IN ELECTRONICS, MICROCONTROLLER, ELECTRICAL ENGINEERING, ARDUINO Hello employer, I have keenly read and understood your CLEARLY stated instructions. I am qualified since i pos Mais

£135 GBP em 1 dia
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Could not resist but bid on the project! Greetings, with 4 years of experience in esp32 and arduino development i am here to help you with your project. Previously i have developed a professional EMS(Environment Monito Mais

£110 GBP in 4 dias
(1 Comentário)

Hello. I read your project carefully, and I am very interest in the project. I have developed many temperature and moisture sensors with I2C and RS485. Especially I have been programming ESP32 firmware for over 5 years Mais

£150 GBP in 7 dias
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