From 825324aa570a2f6ef44db08fdbccc51bac13b9fc Mon Sep 17 00:00:00 2001
From: Rob Hart <hart@g.harvard.edu>
Date: Wed, 7 Oct 2020 17:00:18 -0400
Subject: [PATCH] Update index.html

---
 index.html | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/index.html b/index.html
index 42716f0..810dc8f 100644
--- a/index.html
+++ b/index.html
@@ -17,6 +17,10 @@
 - How to find and use [Datasheets](https://datasheet.octopart.com/ATTINY45-20SU-Atmel-datasheet-41301906.pdf).
 
 - For example, look up part in [Digikey](https://www.digikey.com/) or find in [Octopart](https://octopart.com/).
+
+- Simple Simulation tools.
+  - [Tinkercad](https://www.tinkercad.com/)
+  - [Falstad Applet](https://www.falstad.com/circuit/)
 ___
 
 ###Outline.
-- 
GitLab