Problem calibrating TDS sensor

userHead Account cancelled 2021-03-16 01:37:32 433 Views1 Replies
Hi guys,
I have a TDS sensor that is connected to Arduino mini pro, I tried to calibrate it using these steps here: ... U__SEN0244

but when I type enter on the serial monitor I don't get a response, it supposed to enter the calibration mode.

I will really appreciate your help
2021-03-16 16:13:50 The command you send during calibration needs to end with "Both NL&CR" userHeadPic 347945801