Imported from GitHub: taciturnaxolotl/pxlboard · commit 100d80e · license MIT

Description

YAGNG (yet another generic pixel grid)

README

PxlBoard

BOM

Part	Quantity	Price	LCSC	Notes
PCB (OSHPark)	1	$47.25		Purple PCB; Most expensive manufacturer but also looks gorgeous
PCB (JLCPCB)	1	$24.82		Custom PCB - Green; Mid-range price
PCB (PCBWay)	1	$12.80		Custom PCB - Various colors; Most affordable option (kinda suprisingly?)
Seeed XIAO RP2040	1	$3.99	Seeed Studio	Brain of the operation
SK6812 LEDs	65	$6.40	C5380879	RGB addressable LEDs; $0.0985 each, forms the 8x8 grid
LIS3DHTR Accelerometer	1	$0.60	C15134	3-axis accelerometer; same as the one used on the spark tilt jam
Capacitor 100nF - ceramic	20 (min size) need 1	$0.29	C24497	1206 package
Capacitor 10uF - ceramic	10 (min size) need 9	$0.34	C13585	1206 package
Capacitor 10nf - ceramic	20 (min size) need 1	$0.23	C1846	1206 package
Capacitor 100uF - electrolytic	5 (min size) need 1	$0.87	C1954161	1206 package
Capacitor 470uF - polymer	5 (min size) need 1	$0.59	C41410213	10V 470uF Polymer ±20% SMD,D6.3xL9mm Polymer Aluminum Capacitors ROHS
USB-c connector	5 (min size) need 1	$0.87	C165948	5A 1 16P Female Type-C SMD USB Connectors ROHS

Total (with pcbway): ~$28.25

Schematics

If you want an iteractive version use kicanvas!

Pinout

XIAO RP2040 Connections

XIAO Pin	Connected To	Description
D0/GPIO26/A0	-	Unused
D1/GPIO27/A1	-	Unused
D2/GPIO28/A2	-	Unused
D3/GPIO29/A3	-	Unused
D4/GPIO6/SDA	LIS3DHTR SDA	I2C Data Line
D5/GPIO7/SCL	LIS3DHTR SCL	I2C Clock Line
D6/GPIO0/TX	-	Unused
D7/GPIO1/RX	NEOPIXEL_SIG	LED Data In
D8/GPIO2/SCK	-	Unused
D9/GPIO4/MISO	-	Unused
D10/GPIO3/MOSI	-	Unused
3V3	LIS3DHTR VDD_IO	3.3V Power
GND	LIS3DHTR GND, LEDs GND	Ground
5V	LEDs VDD	5V Power

LIS3DHTR Accelerometer

LIS3DHTR Pin	Connected To	Description
VDD	3.3V	Power Supply
VDD_IO	3.3V	Interface Power
GND	GND	Ground
SDA	XIAO D4	I2C Data
SCL	XIAO D5	I2C Clock
INT1	-	Interrupt (not used)
INT2	-	Interrupt (not used)