Research by roberts_ecofarm 7 research notes and 7 wiki edits starting almost 6 years ago
Inexpensive conductivity probe Step 2 - Sensor Driver #1 - an alternative to a 555 timer
Post by @roberts_ecofarm 4 | over 5 years ago
Inexpensive conductivity probe Step 1 - Sensor Probe design (revised)
Post by @roberts_ecofarm 2 | almost 6 years ago
Inexpensive conductivity probe for drinking water monitoring network
Post by @roberts_ecofarm 4 | almost 6 years ago