Changing the vending system on my Vending Machine

Hello, Dear. I am an experience electronic engineer and PCB designer. I can deliver you high quality PCB design. I hope to help you. Thank you.

Hi Hiring Manager I am Firmware, PCB C, C++, ESP32, Nordic nRF51/52, BLE, IOT FreeRTOS Expert I have more than 8 years of working experience in embedded domain where I worked on hardware design and firmware development. Expert in: - Embedded Firmware development - Sensor library/driver development - Over The Air (OTA) firmware update over BLE and WiFi - Device to cloud communication. AWS, Google ioT core, Azure etc. - PCB design, schematic, pick & place and BOM file Firmware development on following MCUs: - Nordic Semi: nRF51422, nRF51822, nRF52832, nRF52810, nRF52840 and nRF52811 MCU - Texas Instrument: CC2640R2F, CC2640/50, CC2540/41, CC2642R, CC2530, CC3220 MCU - Dialog: DA14680/81/82/83 and DA14580/85 - Silicon Labs BGM13S, BGM11s, BLE121, EFR32 - STM8 and STM32 - Ti's MSP432 - PIC-16 and 32 bits controller - ESP32 and ESP8266 - Raspberry Pi - Arduino ATMEGA-328 - Atmel 8051 and 8052 - LoRa: Semtech SX126x, SX127x series Communication protocol: - UART - SPI - I2C - I2S - RS232 - CAN Cloud communication protocol: - HTTP/HTTPs - MQTT - AWS IoT Core - Google IoT - Azzure - JSON for data format Programming Language: - C - C++ - Python - HTML, CSS - JAVA, JAVA script Experience with following task management tools: - JIRA - Atlassian - Agile Board - Redmine - Trello Worked on Over The Air firmware update over BLE and WiFi protocol Working experience of all types of BLE beacon devices like iBeacon, Eddystone and AltBeacon. Thanks

Hi. Elektronic Expert here, you can Look at my Profile I have read your description, I will design the PCB on kicad and program it with arduino I have good experience in wireless controller such as ESP32, Arduino, STM32, and FPGA You can sent me a message to talk for detail, Tell Me What your Problem, and let me help you to solve it Best regards, Alif

Hello I have more than 15 years of experience in the embedded systems design and pcb design and electronics systems design So let's discuss your project in chat

I am embedded system engineer and I worked before in many embedded projects as I am familiar with Matlab, C programming, electronics and Microcontrollers. Also, worked before with vending machine. So let me hear from you soon.

Hello, Thanks for posting the project with detailed description. I am an Electrical Engineer with 30 years’ experience of Customized Product Development for Instrumentation and Control applications. I am based in Kolkata (India) and running a business in the name of "Zetek Systems". I have a good hardware setup and a team for fabrication and testing. I am bidding here only for design, If you are asking for a prototype please let me know. Looking for your valued reply. Regards - Debasis Basu

hello sir, we are team of engineers . we have done project much close to this one we can do it in two day we can make with you video call if you want any details of the project.

Hi, Sir I hope you are doing good, I am an electrical engineer with experience in circuit design and pcb design, and micro controller programming (Arduino, AVR, etc) I know you want to modify your vending machine system, I have seen your sketches and can tell that I can make this project just the right way, I also knew that you want to replicate the design so you can make it work with multiple products, we have discussed some details recently. What you will get when you work with me is the following .. *fully functional Arduino code that does the required job. *fully functional PCB design that includes the microcontroller chip in gerber format used in manufacturing *you will be updated with the progress so you can tell at which stage I am in and the estimated time to be done with the project. *technical support even after the project is done, in case you faced any problem. For the time needed, I think It is doable within 15~20 days with continuous testing and validation during progression. For the budget, I will make it within the lower limit just to have you encouraged to work with me. Looking forward to working with you and wishing you a great day! Regards, Muhammad T.