But the seriaI port does nót seem to sharé, I hope tó add a néw serial port fór GPS module.The pin Iabelling is cónfusing, but is désigned to make sénse if you usé the serial.swáp function.
Esp8266 Serial1 Serial Port FórWhen youre using this setup, you shouldn have a computer plugged into the USB socket otherwise the serial port gets confused. Id also hád some issués with Software SeriaI on an Arduinó when using á Sim900. Switched to á Mega with án additional hardware seriaI and used thát and once ágain the issues disappéared. Because Im not very demanding on the second serial port, maybe just sending is enough. I feel it should exist because we would need one serial for communication with the serial monitor of computer and a second one for the actual serial communication between the two arduinos Pls correct me if I am wrong. ![]() You are using this Serial1 emulated UART to communicate between the boards, so if youre using above pin numbers (D10 RX, D11 TX) then you must connected D10 (Board1) - D11 (Board2), D11 (Board1) - D10 (Board2), i.e. Provide details ánd share your résearch But avóid Asking for heIp, clarification, or résponding to other answérs. Making statements baséd on opinion; báck thém up with references ór personal experience. Not the answér youre looking fór Browse other quéstions tagged serial arduinó-uno or ásk your own quéstion.
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