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pH Featherwing

pH Featherwing

Blog posts featuring the pH FeatherWing

pH FeatherWing Assembly

pH FeatherWing Assembly

The pH FeatherWing [https://iorodeo.com/products/phfeatherwing] is sold as an unassembled kit. The kit includes the pH FeatherWing v0.2 board (PCB with all of the smt components), and a set of through-hole components. These are i) 3-pin screw terminal connector (blue), ii) 12-pin and 16-pin headers and

pH FeatherWing Hardware

pH FeatherWing Hardware

The pH FeatherWing [https://iorodeo.com/products/phfeatherwing] is a single channel pH electrode amplifier based on Texas Instrument's LMP7721 [http://www.ti.com/lit/ds/symlink/lmp7721.pdf] ultra low input bias current (3 fA) precision operational amplifier. The design of the pH electrode amplifier closely follows Texas Instrument's

Creating a pH meter using the pH FeatherWing

Creating a pH meter using the pH FeatherWing

In this blog post we demonstrate how to create a pH meter using the pH FeatherWing, an Adafruit Feather M4 Express and a few additional components. The meter will display a continuous readout of the current pH and can be calibrated, via button press, at pH values of 4, 7