diff --git a/Indexes/Odin.md b/Indexes/Odin.md
new file mode 100644
index 0000000..e69de29
diff --git a/Indexes/Retro.md b/Indexes/Retro.md
new file mode 100644
index 0000000..e69de29
diff --git a/Notes/PWM Candles Software.md b/Notes/PWM Candles Software.md
index d75874b..8898ce2 100644
--- a/Notes/PWM Candles Software.md	
+++ b/Notes/PWM Candles Software.md	
@@ -1,6 +1,6 @@
 ---
 created: 2026-06-08T14:10:00
-Index:
+Index: "[[Odin]]"
 tags:
   - software
   - table-candles
diff --git a/Notes/PWM Candles.md b/Notes/PWM Candles.md
index 56c2783..4aa1bc1 100644
--- a/Notes/PWM Candles.md	
+++ b/Notes/PWM Candles.md	
@@ -1,6 +1,6 @@
 ---
 created: 2026-06-07T14:31:00
-Index:
+Index: "[[Odin]]"
 tags:
   - software
   - electrical
diff --git a/Notes/Record Puzzle.md b/Notes/Record Puzzle.md
new file mode 100644
index 0000000..024b03a
--- /dev/null
+++ b/Notes/Record Puzzle.md	
@@ -0,0 +1,40 @@
+---
+created: 2026-06-25T13:24:00
+Index: "[[Retro]]"
+tags:
+  - electrical
+  - software
+  - speaker
+source:
+---
+# Record Puzzle
+---
+
+## Needed
+- 6 record slots that read records with RFID reader to check if it is the correct record
+- Songs of correct record play on speaker below each record holder
+- Hand sensor for someone to place hand on record holder, then song plays
+
+## Constraints
+- 1 Raspberry Pi
+- Limits of I2C
+	- I2C bus supports up to 128 devices, but limits such as unique addresses, and bus capacitance limit that significantly, especially with longer wire lengths. Something similar to this might have been the issue with the SPI
+
+## New Parts
+- New RFID readers, flat, I2C, new cable
+- Speakers
+	- Already have 3 of 4 ohm 5 W speaker
+- Speaker Driver
+	- Complicated, because it is 6 speakers, and different sounds, along with already having I2C used
+- Hand sensor
+	- IR distance sensor?
+	- I2C?
+- Speaker enclosure
+
+## Considerations
+- Should the Raspberry Pi control the audio, or should it just send a signal to a separate board to trigger audio playing?
+	- IE: each speaker has it's own little board with an amplifier and sound file, and plays on command
+- OR: Should the hand sensor trigger that directly, no need for the Raspberry Pi to control it?
+	- It could send a signal to the Raspberry Pi so we know what is going on, but this simplifies the code, and I2C issue, and the multiple speaker driver issue.
+
+---
diff --git a/Notes/Wyatt's Notes on Odin_Table Code.md b/Notes/Wyatt's Notes on Odin_Table Code.md
index 489d2e0..352201b 100644
--- a/Notes/Wyatt's Notes on Odin_Table Code.md	
+++ b/Notes/Wyatt's Notes on Odin_Table Code.md	
@@ -1,6 +1,6 @@
 ---
 created: 2026-06-11T23:23:00
-Index:
+Index: "[[Odin]]"
 tags:
   - software
   - odin
diff --git a/Templates/Main Note Template.md b/Templates/Main Note Template.md
index 315660f..20f1a49 100644
--- a/Templates/Main Note Template.md	
+++ b/Templates/Main Note Template.md	
@@ -9,5 +9,4 @@ source:
 
 
 
----
-## References:
+---
\ No newline at end of file