diff --git a/README.md b/README.md
index 31d85ff2..8216374d 100644
--- a/README.md
+++ b/README.md
@@ -351,7 +351,7 @@ The Pi-KVM OS is based on Arch Linux ARM and contains all the required packages
   Please note: **we strongly discourage the use of VNC on untrusted networks.** The current implementation does not use encryption, and your passwords are transmitted over the network in a plain text. The existing anonymous TLS mode is also not secure enough.
   
 * To use Arduino HID with **v2** platform:
-  - Build and connect HID according to the [diagram](#v0-diagram).
+  - Build and connect HID according to the [diagram](#v0-diagram) (the bottom part with transistor, level-shifter and Arduino).
   - Switch to RW-mode using command `rw`.
   - Add these lines to `/etc/kvmd/override.yaml` (remove `{}` in the file before):
     ```yaml