OE!
I read your requirements to design and program a PCB board that can communicate with any vending machines using esp32 and GMS service
I'm an electrical and electronics engineer with more than 5years experience in embedded systems design and PCB layout.
My goal is to make sure work is done efficiently and professionally for a 5 star review.
Let me know when you are free to discuss more details about the project so that I can start working immediately.
I have expertise in
Electronics/embedded systems
PCB layout design, circuit design, embedded systems design, Arduino, ESP32, STM32, PIV, AVR, Controllino
CAD/CAM
Altuim, Eagle, EasyEDA, Proteus, Kicad
Programming languages
C/C++, C#, WPF, Xamarin
Firmware technology
IoT, Bluetooth classic, Bluetooth BLE, WiFi Portals, GSM, Webserver/socket, HMI displays,...
Platforms/ IDE
Arduino IDE, PlatformIO, Visual studio, visual studio code, MPLABx, AVR Studio, MikroC for PIC.
Best regards
Valery