1 files changed, 68 insertions, 7 deletions
diff --git a/Miscellaneous/64x64 HUB 75 LED Matrix/index.md b/Miscellaneous/64x64 HUB 75 LED Matrix/index.md
index 97762d8..6443e00 100644
--- a/Miscellaneous/64x64 HUB 75 LED Matrix/index.md
+++ b/Miscellaneous/64x64 HUB 75 LED Matrix/index.md
@@ -3,7 +3,44 @@ description: "Me documenting my 64x64 LED matrix display"
 created: 2025-03-11
 ---
 
-## Chips
+## Display documentation
+
+### From Aliexpress dealer
+
+[64x64 Indoor RGB HD P3 Led Module Video Wall High Quality P2.5 P4 P5 P6 P7.62 P8 P10 Panel Full Color Display - Aliexpress.com](https://www.aliexpress.com/item/32757647402.html)
+
+Key                       | Value
+------------------------- | -----------------------------------
+Item                      | P3
+Chip                      | Epstar
+Chip size                 | Red 9 mil, Green 12. Blue 12mil
+Light type                | SMD2121
+Pixel Pitch               | 3mm
+Module Size               | 192mmX192mm
+Module Resolution         | 64 X 64 (dots)
+Density of pixel          | 111111dots/m2
+Pixel configuration       | 1R1G1B
+Red wavelength            | 625±2nm
+Green wavelength          | 525±2nm
+Blue wavelength           | 470±2nm
+Colors                    | 16777216
+Best viewing distance     | ≥2m
+viewing angle             | 120°/90°
+Maximum power consumption | 20W
+Brightness                | 1500cd/m2
+Gray scale                | 14bits per color
+Color temperature         | 6500k
+Control method            | Synchronization or Asynchronization
+Driving method            | 1/32 scanning
+Frame frequency           | 60Hz
+Refresh frequency         | ≥600Hz
+Working Voltage           | DC5V
+IP grade                  | IP54
+MTBF                      | More than 8000hours
+Life Span                 | 80,000hours
+
+
+### Chips
 
 1. CHIPONE `ICN74HC245TS` `A14276CA`
 2. `MBI5124GP` `A3YN72CTHB`
@@ -13,11 +50,22 @@ created: 2025-03-11
 ![Chip 2](Chip 2.webp)
 ![Chip 3](Chip 3.webp)
 
-## Display IN connector
+### Display IN connector
 
 ![In left](In left.webp)
 ![In right](In right.webp)
 
+---
+
+## Micro controller wiring
+
+I use an [ESP32 WEMOS LOLIN S2 Mini](https://docs.platformio.org/en/latest/boards/espressif32/lolin_s2_mini.html)
+which has an ESP32-S2F chip on it
+
+![ESP32-S2F_chip](ESP32-S2F_chip.webp)
+
+Display in wiring
+
 ```
     ┌────────┐
 R1  ┤  1  40 ├ G1
@@ -31,13 +79,28 @@ OE  ┤ 14   ⏚ ├ GND
     └────────┘
 ```
 
-## ESP32 S2 Mini wiring
-
 ![ESP32 S2 Mini](ESP32 S2 Mini.webp)
 
 ---
 
-https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA
+## PCB Connector board
+
+The screen glitches unless you have a solid connection.
+
+This PCB is a straight connection, except the gnd which is flipped with the adjacent pin.
+
+![esp32_display_pcb_top_plugged_in](esp32_display_pcb_top_plugged_in.webp)
+![esp32_display_pcb_bottom](esp32_display_pcb_bottom.webp)
+
+Half the display glitched out, untill i added a 100pf capacitor between `lat pin` and `gnd`
+as per:
+<https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA/issues/130#issuecomment-867116753>
+
+---
+
+## Software
+
+<https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA>
 
 ```c++
 #define R1_PIN   1
@@ -63,7 +126,5 @@ HUB75_I2S_CFG mxconfig(
 	_pins, // pin mapping
 );
 dma_display = new MatrixPanel_I2S_DMA(mxconfig);
-
 ```
 
-