diff --git a/Home.md b/Home.md
index ff3375d..484f91f 100644
--- a/Home.md
+++ b/Home.md
@@ -2,4 +2,5 @@ Resources:
 
 - Mesh Model Bluetooth Specification 1.0: https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=429634
 - Bitchat Whitepaper: https://github.com/permissionlesstech/bitchat/blob/main/WHITEPAPER.md
-  - Noise protocol usage and description in the whitepaper: https://github.com/permissionlesstech/bitchat/blob/main/WHITEPAPER.md#5-the-noise-protocol-layer
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+  - Noise protocol usage and description in the whitepaper: https://github.com/permissionlesstech/bitchat/blob/main/WHITEPAPER.md#5-the-noise-protocol-layer
+- Ble Intro Spressif: https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/ble/index.html
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