dunkirk.sh
.github/images/back.png
.github/images/back.png
This is a binary file and will not be displayed.
.github/images/front.png
.github/images/front.png
This is a binary file and will not be displayed.
+47
-76
README.md
+47
-76
README.md
···
1
1
# PxlBoard
2
2
3
-
<img src="https://cachet.dunkirk.sh/emojis/SK6812RGBW/r" width="150" align="right">
4
-
5
-
> ### More deets coming never 😊
6
-
> **Y**et **A**nother **G**eneric **N**eopixel **G**rid (**YAGNG**) except this one is mine so don't you dare dis it :kirby-gun:
3
+
7
4
8
5
## BOM
9
6
10
-
| Part | Quantity | Price | LCSC | Notes |
11
-
| --- | --- | --- | --- | --- |
12
-
| PCB (OSHPark) | 1 | $44.05 | | Purple PCB; Most expensive manufacturer but also looks gorgeous |
13
-
| PCB (JLCPCB) | 1 | $24.82 | | Custom PCB - Green; Mid-range price |
14
-
| PCB (PCBWay) | 1 | $12.80 | | Custom PCB - Various colors; Most affordable option (kinda suprisingly?) |
15
-
| Seeed XIAO RP2040 | 1 | $3.99 | [Seeed Studio](https://www.seeedstudio.com/XIAO-RP2040-v1-0-p-5026.html) | Brain of the operation |
16
-
| SK6812 LEDs | 65 | $6.40 | [C5380879](https://www.lcsc.com/product-detail/RGB-LEDs-Built-in-IC_OPSCO-Optoelectronics-SKC6812RGBW-WS-B_C5380879.html?s_z=n_rgbw) | RGB addressable LEDs; $0.0985 each, forms the 8x8 grid |
17
-
| LIS3DHTR Accelerometer | 1 | $0.60 | [C15134](https://www.lcsc.com/product-detail/Accelerometers_STMicroelectronics-LIS3DHTR_C15134.html?s_z=n_LIS3DHTR) | 3-axis accelerometer; same as the one used on the spark tilt jam |
18
-
| Capacitor 100nF - ceramic | 20 (min size) need 1 | $0.29 | [C24497](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL31B104KBCNNNC_C24497.html?s_z=n_1206%2520100nf) | 1206 package |
19
-
| Capacitor 10uF - ceramic | 10 (min size) need 9 | $0.34 | [C13585](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL31A106KBHNNNE_C13585.html?s_z=n_10uf%25201206) | 1206 package |
20
-
| Capacitor 10nf - ceramic | 20 (min size) need 1 | $0.23 | [C1846](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_FH-Guangdong-Fenghua-Advanced-Tech-1206B103K500NT_C1846.html?s_z=n_10nf%25201206) | 1206 package |
21
-
| Capacitor 100uF - electrolytic | 5 (min size) need 1 | $0.87 | [C1954161](https://www.lcsc.com/product-detail/Tantalum-Capacitors_Vishay-Intertech-TMCMA0J107MTRF_C1954161.html?s_z=n_100uf) | 1206 package |
22
-
| Capacitor 470uF - polymer | 5 (min size) need 1 | $0.59 | [C41410213](https://www.lcsc.com/product-detail/Polymer-Aluminum-Capacitors_Yunxing-SPT1AM471E09TRVZC_C41410213.html?s_z=n_470uf%252010v%2520polymer) | 10V 470uF Polymer ±20% SMD,D6.3xL9mm Polymer Aluminum Capacitors ROHS |
7
+
| Part | Quantity | Price | LCSC | Notes |
8
+
| ------------------------------ | -------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------ |
9
+
| PCB (OSHPark) | 1 | $47.25 | | Purple PCB; Most expensive manufacturer but also looks gorgeous |
10
+
| PCB (JLCPCB) | 1 | $24.82 | | Custom PCB - Green; Mid-range price |
11
+
| PCB (PCBWay) | 1 | $12.80 | | Custom PCB - Various colors; Most affordable option (kinda suprisingly?) |
12
+
| Seeed XIAO RP2040 | 1 | $3.99 | [Seeed Studio](https://www.seeedstudio.com/XIAO-RP2040-v1-0-p-5026.html) | Brain of the operation |
13
+
| SK6812 LEDs | 65 | $6.40 | [C5380879](https://www.lcsc.com/product-detail/RGB-LEDs-Built-in-IC_OPSCO-Optoelectronics-SKC6812RGBW-WS-B_C5380879.html?s_z=n_rgbw) | RGB addressable LEDs; $0.0985 each, forms the 8x8 grid |
14
+
| LIS3DHTR Accelerometer | 1 | $0.60 | [C15134](https://www.lcsc.com/product-detail/Accelerometers_STMicroelectronics-LIS3DHTR_C15134.html?s_z=n_LIS3DHTR) | 3-axis accelerometer; same as the one used on the spark tilt jam |
15
+
| Capacitor 100nF - ceramic | 20 (min size) need 1 | $0.29 | [C24497](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL31B104KBCNNNC_C24497.html?s_z=n_1206%2520100nf) | 1206 package |
16
+
| Capacitor 10uF - ceramic | 10 (min size) need 9 | $0.34 | [C13585](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_Samsung-Electro-Mechanics-CL31A106KBHNNNE_C13585.html?s_z=n_10uf%25201206) | 1206 package |
17
+
| Capacitor 10nf - ceramic | 20 (min size) need 1 | $0.23 | [C1846](https://www.lcsc.com/product-detail/Multilayer-Ceramic-Capacitors-MLCC-SMD-SMT_FH-Guangdong-Fenghua-Advanced-Tech-1206B103K500NT_C1846.html?s_z=n_10nf%25201206) | 1206 package |
18
+
| Capacitor 100uF - electrolytic | 5 (min size) need 1 | $0.87 | [C1954161](https://www.lcsc.com/product-detail/Tantalum-Capacitors_Vishay-Intertech-TMCMA0J107MTRF_C1954161.html?s_z=n_100uf) | 1206 package |
19
+
| Capacitor 470uF - polymer | 5 (min size) need 1 | $0.59 | [C41410213](https://www.lcsc.com/product-detail/Polymer-Aluminum-Capacitors_Yunxing-SPT1AM471E09TRVZC_C41410213.html?s_z=n_470uf%252010v%2520polymer) | 10V 470uF Polymer ±20% SMD,D6.3xL9mm Polymer Aluminum Capacitors ROHS |
20
+
| USB-c connector | 5 (min size) need 1 | $0.87 | [C165948](https://www.lcsc.com/product-detail/C165948.html) | 5A 1 16P Female Type-C SMD USB Connectors ROHS |
23
21
24
-
Total (with pcbway): ~$27.38
22
+
Total (with pcbway): ~$28.25
25
23
26
24
## Schematics
27
25
28
26
> If you want an iteractive version use [`kicanvas`](https://kicanvas.org/?github=https%3A%2F%2Fgithub.com%2Ftaciturnaxolotl%2Fpxlboard%2Fblob%2Fmain%2Fkicad%2Fpxlboard.kicad_pro)!
29
27
30
28
31
-
32
29
33
-
## Build Notes
34
-
35
-
Wokwi link: [https://wokwi.com/projects/429914092020158465](https://wokwi.com/projects/429914092020158465)
30
+
<div align="center">
31
+
<img src="https://raw.githubusercontent.com/taciturnaxolotl/pxlboard/main/.github/images/front.png" width="30%" />
32
+
<img src="https://raw.githubusercontent.com/taciturnaxolotl/pxlboard/main/.github/images/pcb.svg" width="38%" />
33
+
<img src="https://raw.githubusercontent.com/taciturnaxolotl/pxlboard/main/.github/images/back.png" width="30%" />
34
+
</div>
36
35
37
-
### Pinout & Wiring Diagram
36
+
### Pinout
38
37
39
38
#### XIAO RP2040 Connections
40
39
41
-
| XIAO Pin | Connected To | Description |
42
-
| --- | --- | --- |
43
-
| D0/GPIO26/A0 | - | Unused |
44
-
| D1/GPIO27/A1 | - | Unused |
45
-
| D2/GPIO28/A2 | - | Unused |
46
-
| D3/GPIO29/A3 | - | Unused |
47
-
| D4/GPIO6/SDA | LIS3DHTR SDA | I2C Data Line |
48
-
| D5/GPIO7/SCL | LIS3DHTR SCL | I2C Clock Line |
49
-
| D6/GPIO0/TX | - | Unused |
50
-
| D7/GPIO1/RX | NEOPIXEL_SIG | LED Data In |
51
-
| D8/GPIO2/SCK | - | Unused |
52
-
| D9/GPIO4/MISO | - | Unused |
53
-
| D10/GPIO3/MOSI | - | Unused |
54
-
| 3V3 | LIS3DHTR VDD_IO | 3.3V Power |
55
-
| GND | LIS3DHTR GND, LEDs GND | Ground |
56
-
| 5V | LEDs VDD | 5V Power |
40
+
| XIAO Pin | Connected To | Description |
41
+
| -------------- | ---------------------- | -------------- |
42
+
| D0/GPIO26/A0 | - | Unused |
43
+
| D1/GPIO27/A1 | - | Unused |
44
+
| D2/GPIO28/A2 | - | Unused |
45
+
| D3/GPIO29/A3 | - | Unused |
46
+
| D4/GPIO6/SDA | LIS3DHTR SDA | I2C Data Line |
47
+
| D5/GPIO7/SCL | LIS3DHTR SCL | I2C Clock Line |
48
+
| D6/GPIO0/TX | - | Unused |
49
+
| D7/GPIO1/RX | NEOPIXEL_SIG | LED Data In |
50
+
| D8/GPIO2/SCK | - | Unused |
51
+
| D9/GPIO4/MISO | - | Unused |
52
+
| D10/GPIO3/MOSI | - | Unused |
53
+
| 3V3 | LIS3DHTR VDD_IO | 3.3V Power |
54
+
| GND | LIS3DHTR GND, LEDs GND | Ground |
55
+
| 5V | LEDs VDD | 5V Power |
57
56
58
57
#### LIS3DHTR Accelerometer
59
58
60
-
| LIS3DHTR Pin | Connected To | Description |
61
-
| --- | --- | --- |
62
-
| VDD | 3.3V | Power Supply |
63
-
| VDD_IO | 3.3V | Interface Power |
64
-
| GND | GND | Ground |
65
-
| SDA | XIAO D4 | I2C Data |
66
-
| SCL | XIAO D5 | I2C Clock |
67
-
| INT1 | - | Interrupt (not used) |
68
-
| INT2 | - | Interrupt (not used) |
69
-
70
-
#### Wiring Diagram
71
-
72
-
```mermaid
73
-
graph TD
74
-
XIAO[XIAO RP2040] -- SDA --> LIS3D[LIS3DHTR Accelerometer]
75
-
XIAO -- SCL --> LIS3D
76
-
XIAO -- 3.3V --> LIS3D
77
-
XIAO -- GND --> LIS3D
78
-
79
-
XIAO -- 5V --> LEDS[SK6812 LED Grid]
80
-
XIAO -- GND --> LEDS
81
-
XIAO -- D7/GPIO1 --> LEDS
82
-
83
-
LEDS -- Data chain --> LED1[LED #1]
84
-
LED1 --> LED2[LED #2]
85
-
LED2 --> LED3[LED #3]
86
-
LED3 --> DOT["..."]
87
-
DOT --> LED64[LED #64]
88
-
89
-
classDef mcu fill:#f96,stroke:#333,stroke-width:2px;
90
-
classDef sensor fill:#bbf,stroke:#33f,stroke-width:1px;
91
-
classDef led fill:#9f9,stroke:#3a3,stroke-width:1px;
92
-
93
-
class XIAO mcu;
94
-
class LIS3D sensor;
95
-
class LEDS,LED1,LED2,LED3,LED64 led;
96
-
```
59
+
| LIS3DHTR Pin | Connected To | Description |
60
+
| ------------ | ------------ | -------------------- |
61
+
| VDD | 3.3V | Power Supply |
62
+
| VDD_IO | 3.3V | Interface Power |
63
+
| GND | GND | Ground |
64
+
| SDA | XIAO D4 | I2C Data |
65
+
| SCL | XIAO D5 | I2C Clock |
66
+
| INT1 | - | Interrupt (not used) |
67
+
| INT2 | - | Interrupt (not used) |
97
68
98
69
<p align="center">
99
70
<img src="https://raw.githubusercontent.com/taciturnaxolotl/carriage/master/.github/images/line-break.svg" />