C++ programming on ESP32 using Modbus protocol

Hi, I hope you are doing well. I have extensive experience in embedded system programming. I have worked on Modbus using ESP32 and I have hardware available for quick prototyping and testing. I have understood your requirements and I can execute it in less possible time. Looking Forward, Khawaja

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Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working product. If you wish we can discuss details in chat. Thanks

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Hello, I have worked on the esp32 with Modbus before. Can you confirm me which protocol of modulus do you want to use TCP or RTU? What is information do you want to transfer via Modbus. I am available all the time as per your time zone. Waiting for your response. Thanks, Chanchal Kumari

hi, probably i can handle this .....................................................................

hi i am interested to do your project. i can satisfy your requirement. it would be my pleasure to serve you.

Hi there, I have checked the details. I have rich experience with C Programming, C++ Programming, Electrical Engineering, Electronics, Microcontroller. Please initiate the chat so we can discuss this job in detail.

Hi I am interested in your project. I am an embedded software engineer for several years. I have experince in C/C++ programming with several projects. I have also hands-on experience with modbus via RF systems. Please send me a message so we can discuss more. Regards UZ

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Hi. I am a Senior Software Engineer with rich experience in C/C++, Modbus and ESP32. I am ready to provide you with perfect help. Looking forward to discussing more in detail via chat. Waiting for your reply. Thanks.

Hello, You are proposing a very interesting project which I would like to be part of. I have a vast experience working with embedded systems, using a variety of communication protocols such as: USB, RF 433Mhz, UART, I2C, SPI, RS232 and MQTT. All this because I have participated in electronic circuit design, BOM research, PCB design and software development for projects related to IoMT devices, digital signal derivation, IoT devices, power supplies and power distribution. I would like to talk in detail about the sensors you are using and the system you want to develop with the Modbus protocol. Why Modbus? Have you considered a different protocol? Please send me a chat message so we can talk. Best regards.

Hello We have been an engineer for more than 8 years in the market and have already developed projects for several companies using microcontrollers like PIC, AVR, Arduino, ARM, NXP, Nordic, Texas among others. Using the general description of your project is possible to make a generic estimate, but the refinement of the total amount of work and the value of it will depend very much on the quantity and complexity of the features to be implemented, so I look forward to your contact for more details. Thank you. Elton Vieira

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3) Read coils/discrete inputs Now lets read written boolean values. To read register with function 1 read coil, execute: modbus.read_coils(slaveId, register, count)[0:count] To read register with function 2 read discrete input, execute: modbus.read_discrete_inputs(slaveId, register, count)[0:count] where: slave-id - id of virtual slave (Slave simulator accepts all valid ids) register - register number for reading count - amount of registers to be read (put desired amount in both places) These methods return array with boolean values. Each value correspond to each register. The fragment: [0:count] is needed, because this method returns more values, than count. It returns always amount of values which is divisible by 8. Additional values are False and don't corresponds to any register.

Hello I am interested in the project because in my work I usually have to use this protocol with sensors from which it is necessary to extract information. I have been programming in C ++ for approximately 7 years, under mainly Linux systems.