hello i,m new in programming and iot i have big trouble please help mehow make modbus tcp/ip and iot and controll realys with stm32f407 please help me step by step i can only ping with lwip but not know what should i do next?
hii have a stm32f407vgt6 with embedded ethernet and chip dp83848cvv i can configure lwip and set ip and ping but i want to start modbus tcp/ip that control gpio output but i don,t know what to do please help me
