diff --git a/README.org b/README.org
index a4ebcfa..6eec97e 100644
--- a/README.org
+++ b/README.org
@@ -18,3 +18,17 @@ Target Size: 8HP
   - storage for presets
   - pulse width control
 
+* Hardware
+
+** Main Component List
+| Name               | Part Number             | Quantity | Function        | Notes                                 |
+|--------------------+-------------------------+----------+-----------------+---------------------------------------|
+| esp32              | ESP32_SE-DevKitC-1-N8R8 |        1 | MCU             |                                       |
+| OP Amp             | TL074                   |        2 | CV I/O Buffers  | 1 for clock out. 1 for inputs         |
+| OP Amp             | TL072                   |        1 | CV I/O Buffer   | For reset                             |
+| LED Rotary Encoder | 12CE2H25B12C24          |        1 | Control Knob    | Blue/Green 12 ppr with NO SPST switch |
+| LED                | generic                 |        4 | Clock Out Blink |                                       |
+| 3.5mm TS Jack      | PJ398SM                 |        7 | CV IN/Out       | TS with switch                        |
+| Pushbutton Switch  | undecided               |        1 | Tap Tempo       | NO SPST                               |
+| Pushbutton Switch  | undecided               |        1 | Start/Stop      | NO SPST                               |
+| Display            | undecided               |        1 | Display         |                                       |