From d61986630c3709a8ed617ace5871d0686756794e Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>
Date: Wed, 6 Mar 2024 13:12:13 +0100
Subject: [PATCH] try math

---
 readme.md | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/readme.md b/readme.md
index 488b8f8..c497345 100644
--- a/readme.md
+++ b/readme.md
@@ -76,6 +76,20 @@ The circuit generates the following signals:
 
 ![](./docs/reset-signal.png)
 
+Reference voltage (green):
+
 ```math
-3.3V \frac{22k\Omega}{22k + 10k} = 2.2V
+3.3V \frac{22k\Omega}{22k\Omega + 10k\Omega} = 2.2V
+```
+
+Trigger voltage (purple):
+
+```math
+3.3V \frac{330k\Omega}{330k\Omega + 82k\Omega} = 2.64V
+```
+
+RC constant:
+
+```math
+\tau = 82k\Omega 100nF = 8.2ms
 ```