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--- pm:prj2026:tarik_ilhan.omer:darius.zaharescu [2026/05/09 19:45]
darius.zaharescu [General Description]
+++ pm:prj2026:tarik_ilhan.omer:darius.zaharescu [2026/05/09 22:39] (current)
darius.zaharescu [Hardware Design]
@@ Line 8: / Line 8: @@
 It is useful as a learning reference for anyone getting started with LED matrices, I2C displays, and button debouncing on AVR microcontrollers.
+}
-{{:pm:prj2026:tarik_ilhan.omer:block_diagram.png?200|}}===== General Description =====
+===== General Description =====
 The system is built around the ATmega328P (XMini board). The user presses a button to advance through the letters D → A → R → I → U → S, each rendered as a bitmap pattern on the 8x8 LED matrix driven by a MAX7219. The LCD 1602 (I2C) shows the current letter being displayed. Two separate buttons increase or decrease LED brightness via the MAX7219 intensity register.
-**Block diagram:** {{pm:prj2026:tarik_ilhan.omer:darius.zaharescu:block_diagram.png}}
+**Block diagram:**
+{{pm:prj2026:tarik_ilhan.omer:block_diagram.png}}
+───────>: Signal / data
+-------: Passive connection
+───────: Power
 Modules:
@@ Line 51: / Line 59: @@
   * Brightness down → PD4
-**Schematic:** will be completed
+**Schematic:**
+{{pm:prj2026:tarik_ilhan.omer:schematic_block.png}}
 ===== Software Design =====