From 4561efee8bea499962d75147bc8b019b17727cf7 Mon Sep 17 00:00:00 2001
From: Fisch <interfisch@gmx.net>
Date: Wed, 26 Apr 2023 00:01:13 +0200
Subject: [PATCH] circuit info

---
 README.md | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 91c8c61..463b083 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
-# EC-Meter for ESP32
+# EC-Meter
 
 Circuit from: https://publiclab.org/notes/bhickman/05-09-2016/conductivity-and-temperature-meter
+
+EC sensor for measuring electrical conductivity of liquids.
+VCC=5V
+Frequency 5kHz from uC.
+Outputs an analog voltage.