Write some Software for MODBUS RTU based on Arduino ESP8266 and MQTT protocol

Hi, I have experience for 15+ years in electronics/embedded development. I have several years of advanced AVR/arduino development, including library development from scratch. Practically all Arduino AVR boards used, like: 2009, 2010, UNO, MEGA, NANO, MICRO, MINI and others like DigiSpark (attiny85). Several shields used like Ethernet (W5100, ENC28J60, etc.) with various IP protocols implementation, various graphical TFTs with and without touchscreen and various BUS types (parallel, SPI, I2C, etc.), all kinds of sensors and buses, serial and parallel memories, etc. I am quite experienced in using the Arduino IDE for ESP8266 and in porting arduino libraries to the ESP8266 toolchain. Regarding "cloud" connectivity, I have previously implemented MQTT, Microsoft Azure Mobile Services and EventHub, simple POST's to http servers, etc. I have also experience in modbus both serial (RS-485) and TCP, mainly in master devices (what you want). Here's the ESP8266 material I have for development: [login to view URL] If you are interested in my bid, please let me know some more details about your project and I'll be able to answer you back telling if I'm up to the task or not. Feel free to contact me. Best regards, Carlos.

Hi, I have worked on RS485 based energy meters on ESP8266. I have understood your project requirements and I can execute it in less possible time. Looking Forward, Khawaja

I could help you with this project

Hello, I have some experience with arduino, and modbus, however not with mqtt but I like to learn. thanks, Ronald Garcia

I have worked with modbus standard, ESP8266 arduino, and mqtt as well. So, it'll take five days to integrated all features as your requirements

Hello, Please consider my bid on this project. For my portfolio please check my profile. Thank you!

I have done a similar project, i can do it for you in 1 day. Contact me if you need me. Would be happy to help.

Hello , I am a PhD student with great experience on ESP8266 platform. I am also involved in many project with energy consumption(currently working with ADE7753ARSZ) I hope we can work together! BRs Dimitris

I have 3 such project energy data acquisition over RS485 and uploading over WiFi or Zigbee or sub ghz RF module to cloud. Thanks, Warm Regards, Nilesh Bhadule

I completed master of engineering in embedded. I am very hardworking and i make many projects on protocol. I am working on ARM, AVR controller and other controller in company. This is my first project on freelancer. I make many projects in local area.

I am embedded engineer with networking experience.