PH metre » History » Revision 9
Revision 8 (Frédéric Blanc, 2021-04-10 19:36) → Revision 9/19 (Frédéric Blanc, 2021-04-10 19:38)
h1. PH metre h2. PH-4502C !clipboard-202104101846-oevts.png! *Po* Ph analog *To* Temp analog *Do* Trig digital !clipboard-202104101516-ovhks.png! h3. ADS1115 gain x1 (4.096V) <pre><code > ph=-5.7*(%value%/2^15*4.096)+21.34 </code></pre> *"ph=-5.7*(%value%/2^15*4.096)+21.34"* https://www.e-tinkers.com/2019/11/measure-ph-with-a-low-cost-arduino-ph-sensor-board/ http://agregationchimie.free.fr/phmetre_arduino.php