I'm looking for some help with a PCB design i'm doing, i want to connect a power analyzer thar requites Modbus protochol, using 485 halfduplex For that to work i need to enable a disable the rs485 tranductor via gpio or timer555. i copy pasted this :
I copied the configuration above to se my raspberry as master.
-The would be any problems with the modbus timeout? (i set it like the example at 40us)
-is it a safer solution to set the enable using gpio/mcp23017(i2c)?