commit ddb68db15ec56f2e26cc2a0305ce03b330577826 · dunkirk.sh/pxlboard

+40 -39
README.md
···

       7
       7
        
       

     

       8
       8
        
       ## BOM

     

       9
       9
        
       

     

       10
       10
       -
       | Part | Quantity | Price | LCSC | Notes |

     

       11
       11
       -
       | --- | --- | --- | --- | --- |

     

       12
       12
       -
       | PCB (OSHPark) | 1 | $47.25 | | Purple PCB; Most expensive manufacturer but also looks gorgeous |

     

       13
       13
       -
       | PCB (JLCPCB) | 1 | $24.82 | | Custom PCB - Green; Mid-range price |

     

       14
       14
       -
       | PCB (PCBWay) | 1 | $12.80 | | Custom PCB - Various colors; Most affordable option (kinda suprisingly?) |

     

       15
       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
       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
       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
       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
       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
       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
       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
       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 |

     

       10
       10
       +
       | Part                           | Quantity             | Price  | LCSC                                                                                                                                                                     | Notes                                                                    |

     

       11
       11
       +
       | ------------------------------ | -------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------ |

     

       12
       12
       +
       | PCB (OSHPark)                  | 1                    | $47.25 |                                                                                                                                                                          | Purple PCB; Most expensive manufacturer but also looks gorgeous          |

     

       13
       13
       +
       | PCB (JLCPCB)                   | 1                    | $24.82 |                                                                                                                                                                          | Custom PCB - Green; Mid-range price                                      |

     

       14
       14
       +
       | PCB (PCBWay)                   | 1                    | $12.80 |                                                                                                                                                                          | Custom PCB - Various colors; Most affordable option (kinda suprisingly?) |

     

       15
       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
       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
       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
       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
       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
       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
       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
       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    |

     

       23
       23
       +
       | 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
       24
        
       

     

       24
       24
       -
       Total (with pcbway): ~$27.38

     

       25
       25
       +
       Total (with pcbway): ~$28.25

     

       25
       26
        
       

     

       26
       27
        
       ## Schematics

     

       27
       28
        
       

     
···

       38
       39
        
       

     

       39
       40
        
       #### XIAO RP2040 Connections

     

       40
       41
        
       

     

       41
       41
       -
       | XIAO Pin | Connected To | Description |

     

       42
       42
       -
       | --- | --- | --- |

     

       43
       43
       -
       | D0/GPIO26/A0 | - | Unused |

     

       44
       44
       -
       | D1/GPIO27/A1 | - | Unused |

     

       45
       45
       -
       | D2/GPIO28/A2 | - | Unused |

     

       46
       46
       -
       | D3/GPIO29/A3 | - | Unused |

     

       47
       47
       -
       | D4/GPIO6/SDA | LIS3DHTR SDA | I2C Data Line |

     

       48
       48
       -
       | D5/GPIO7/SCL | LIS3DHTR SCL | I2C Clock Line |

     

       49
       49
       -
       | D6/GPIO0/TX | - | Unused |

     

       50
       50
       -
       | D7/GPIO1/RX | NEOPIXEL_SIG | LED Data In |

     

       51
       51
       -
       | D8/GPIO2/SCK | - | Unused |

     

       52
       52
       -
       | D9/GPIO4/MISO | - | Unused |

     

       53
       53
       -
       | D10/GPIO3/MOSI | - | Unused |

     

       54
       54
       -
       | 3V3 | LIS3DHTR VDD_IO | 3.3V Power |

     

       55
       55
       -
       | GND | LIS3DHTR GND, LEDs GND | Ground |

     

       56
       56
       -
       | 5V | LEDs VDD | 5V Power |

     

       42
       42
       +
       | XIAO Pin       | Connected To           | Description    |

     

       43
       43
       +
       | -------------- | ---------------------- | -------------- |

     

       44
       44
       +
       | D0/GPIO26/A0   | -                      | Unused         |

     

       45
       45
       +
       | D1/GPIO27/A1   | -                      | Unused         |

     

       46
       46
       +
       | D2/GPIO28/A2   | -                      | Unused         |

     

       47
       47
       +
       | D3/GPIO29/A3   | -                      | Unused         |

     

       48
       48
       +
       | D4/GPIO6/SDA   | LIS3DHTR SDA           | I2C Data Line  |

     

       49
       49
       +
       | D5/GPIO7/SCL   | LIS3DHTR SCL           | I2C Clock Line |

     

       50
       50
       +
       | D6/GPIO0/TX    | -                      | Unused         |

     

       51
       51
       +
       | D7/GPIO1/RX    | NEOPIXEL_SIG           | LED Data In    |

     

       52
       52
       +
       | D8/GPIO2/SCK   | -                      | Unused         |

     

       53
       53
       +
       | D9/GPIO4/MISO  | -                      | Unused         |

     

       54
       54
       +
       | D10/GPIO3/MOSI | -                      | Unused         |

     

       55
       55
       +
       | 3V3            | LIS3DHTR VDD_IO        | 3.3V Power     |

     

       56
       56
       +
       | GND            | LIS3DHTR GND, LEDs GND | Ground         |

     

       57
       57
       +
       | 5V             | LEDs VDD               | 5V Power       |

     

       57
       58
        
       

     

       58
       59
        
       #### LIS3DHTR Accelerometer

     

       59
       60
        
       

     

       60
       60
       -
       | LIS3DHTR Pin | Connected To | Description |

     

       61
       61
       -
       | --- | --- | --- |

     

       62
       62
       -
       | VDD | 3.3V | Power Supply |

     

       63
       63
       -
       | VDD_IO | 3.3V | Interface Power |

     

       64
       64
       -
       | GND | GND | Ground |

     

       65
       65
       -
       | SDA | XIAO D4 | I2C Data |

     

       66
       66
       -
       | SCL | XIAO D5 | I2C Clock |

     

       67
       67
       -
       | INT1 | - | Interrupt (not used) |

     

       68
       68
       -
       | INT2 | - | Interrupt (not used) |

     

       61
       61
       +
       | LIS3DHTR Pin | Connected To | Description          |

     

       62
       62
       +
       | ------------ | ------------ | -------------------- |

     

       63
       63
       +
       | VDD          | 3.3V         | Power Supply         |

     

       64
       64
       +
       | VDD_IO       | 3.3V         | Interface Power      |

     

       65
       65
       +
       | GND          | GND          | Ground               |

     

       66
       66
       +
       | SDA          | XIAO D4      | I2C Data             |

     

       67
       67
       +
       | SCL          | XIAO D5      | I2C Clock            |

     

       68
       68
       +
       | INT1         | -            | Interrupt (not used) |

     

       69
       69
       +
       | INT2         | -            | Interrupt (not used) |

     

       69
       70
        
       

     

       70
       71
        
       #### Wiring Diagram

     

       71
       72