@irfanjamil1127
Your demonstration was awesome. I just want to ask that i don't know the pH value before dip the sensor into the water so how can i adjust the voltage level. means already you know that you have pH7 and pH10 water samples for testing.
@rebazbalisani9687
this device is retired, and the website is down, can you recommend any other replacement of this product?, i may need to use it for nitrate, potassium, sodium and calcium
@GiselleEss
Hi Andrew, My situation: 1) Checked voltage of Arduino (4.94V) and updated sketch 2) Placed in pH7 solution and changed trimpot so Voltmeter showed 0 3) Placed in pH10 solution and changed trimpot so Serial Monitor showed 10 4) Place in pH7 solution and changed trimpot so Voltmeter showed 0 However, when placed in pH7 solution, the Voltmeter shows 0 but the Serial Monitor shows 9.65 instead of 7. What could be the reason for this? Thanks!
@tlsw0515
If i have buffer solution ph4 and ph10, Can i modify the equation ph_value = ((millivolts / PH_GAIN) / 59.2) + 4 to get the range (4~10)?
@manolisfcf
Hello, I have the same shield . In the beggining I could measure but at the moment I only get 0 voltages but then I tried to configure it and changed the trimpots position after a while it reached 0 and now I can only measure 0 , I m changing the trimpots to the the first position and still measuring 0 what is going on ?
@tlsw0515
Can i get full range pH reading (0-14pH) by this sensor shield?
@andreadonado5549
Hello Andrew, you can pass me the code?
@ALJAWIIE
phduino?
@vn0r1g1n41
Hi Giselle, I'm answering you via the email you sent.
@rishavnath