Hi, I am trying to create a setup here with multiple sensors, that's why I am using a breadboard. However, following the tutorial steps (https://wiki.dfrobot.com/Gravity__Analog_pH_Sensor_Meter_Kit_V2_SKU_SEN0161-V2), I get values around -12 when connecting the sensor via a breadboard:
temperature:25.0^C pH:-11.92
temperature:25.0^C pH:-11.92
temperature:25.0^C pH:-11.95
Without breadboard, holding the sensor in the calibration solution with a pH of 7, I get normal values around 7.
I checked the setup of my breadboard multiple times, but it should be fine. Also, I am actually getting readings (although negative)...
Calibrating the sensor while using the breadboard also doesn't work, it says "Buffer solution error".
Any ideas on how to solve this problem? Is this a hardware or software problem?
FYI: I am using the Arduino Uno R3 and Dfrbobot ph Meter V2.0.
Hi, I am trying to create a setup here with multiple sensors, that's why I am using a breadboard. However, following the tutorial steps (https://wiki.dfrobot.com/Gravity__Analog_pH_Sensor_Meter_Kit_V2_SKU_SEN0161-V2), I get values around -12 when connecting the sensor via a breadboard:
temperature:25.0^C pH:-11.92
temperature:25.0^C pH:-11.92
temperature:25.0^C pH:-11.95
Without breadboard, holding the sensor in the calibration solution with a pH of 7, I get normal values around 7.
I checked the setup of my breadboard multiple times, but it should be fine. Also, I am actually getting readings (although negative)...
Calibrating the sensor while using the breadboard also doesn't work, it says "Buffer solution error".
Any ideas on how to solve this problem? Is this a hardware or software problem?
FYI: I am using the Arduino Uno R3 and Dfrbobot ph Meter V2.0.