diff --git a/z80.project/README.md b/z80.project/README.md
index 324217e..d37145f 100644
--- a/z80.project/README.md
+++ b/z80.project/README.md
@@ -2,4 +2,5 @@
 - Timer 555 Calculator
 - https://www.digikey.de/de/resources/conversion-calculators/conversion-calculator-555-timer?srsltid=AfmBOooVGYjRDR9IChxvm5S2sqknCEWSG8kwr6jI-XGZyPnTDZY9G8-c
 - Board Simulation
+- https://easyeda.com
 - https://www.circuitlab.com/editor/#?id=7pq5wm&from=homepage
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