Buse RGB LED Panel - Revision history

Thebys: /* TODO */

2026-03-22T21:51:27Z

TODO

← Older revision		Revision as of 21:51, 22 March 2026
Line 86:		Line 86:
	</gallery>		</gallery>

	~~== TODO ==~~		*

	* ~~<s>Port to ESP*</s>~~
	* <s>Hook to Home Assistant</s>
	* Figure out physical mounting
	* hailsatan

Thebys: /* ESPHome integration */

2026-03-22T21:50:04Z

ESPHome integration

← Older revision		Revision as of 21:50, 22 March 2026
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	== ESPHome integration ==		== ESPHome integration ==
	external_components:		<syntaxhighlight lang="yaml+jinja" line="1">
	- source:		external_components:
	type: git		- source:
	url: ~~<nowiki>~~https://codeberg.org/lubko/buse004-1~~</nowiki>~~		type: git
	path: ./		url: https://codeberg.org/lubko/buse004-1
	components: [ btc004 ]		path: ./
			components: [ btc004 ]
	image:
	- file: ~~<nowiki>~~https://codeberg.org/lubko/buse004-1/raw/branch/main/tux.xpm~~</nowiki>~~		image:
	type: rgb565		- file: https://codeberg.org/lubko/buse004-1/raw/branch/main/tux.xpm
	id: tux		type: rgb565
	- file: ~~<nowiki>~~https://codeberg.org/lubko/buse004-1/raw/branch/main/48.gif~~</nowiki>~~		id: tux
	type: rgb565		- file: https://codeberg.org/lubko/buse004-1/raw/branch/main/48.gif
	id: base48		type: rgb565
			id: base48
	display:
	platform: btc004		display:
	le_pins: [ GPIO05 ]		platform: btc004
	clk_pins: [ GPIO04, GPIO15, GPIO02, GPIO00 ]		le_pins: [ GPIO05 ]
	data_pins: [ GPIO16, GPIO14, GPIO12, GPIO13 ]		clk_pins: [ GPIO04, GPIO15, GPIO02, GPIO00 ]
	update_interval: 10666ms		data_pins: [ GPIO16, GPIO14, GPIO12, GPIO13 ]
	lambda: \|-		update_interval: 10666ms
	static bool state;		lambda: \|-
	it.image(0, 0, (state = !state) ? id(tux) : id(base48));		static bool state;
			it.image(0, 0, (state = !state) ? id(tux) : id(base48));
			</syntaxhighlight>

	== Pictures ==		== Pictures ==

Thebys: /* TODO */

2026-03-22T21:46:52Z

TODO

← Older revision		Revision as of 21:46, 22 March 2026
Line 87:		Line 87:

	* <s>Port to ESP*</s>		* <s>Port to ESP*</s>
	* Hook to Home Assistant		* <s>Hook to Home Assistant</s>
	* Figure out physical mounting		* Figure out physical mounting
	* hailsatan		* hailsatan

Klubko at 11:26, 20 March 2026

2026-03-20T11:26:32Z

@@ Line 27: / Line 27: @@
 Rows do have common CLK and LE signals. This means both halves of the row must be fed in parallel, but rows are entirely independent of each other.
 [[File:Layout.png|center|frameless|600x600px|LED & driver layout]]
 == Resources ==
@@ Line 36: / Line 46: @@
 Schematic of the 4-bit (9 pins) ESP8266-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/esp8266-adapter-buse-btc004.pdf
 == ESPHome integration ==
@@ Line 62: / Line 74: @@
         static bool state;
         it.image(0, 0, (state = !state) ? id(tux) : id(base48));
 == Pictures ==

Klubko at 10:53, 19 March 2026

2026-03-19T10:53:37Z

← Older revision		Revision as of 10:53, 19 March 2026
Line 62:		Line 62:
	static bool state;		static bool state;
	it.image(0, 0, (state = !state) ? id(tux) : id(base48));		it.image(0, 0, (state = !state) ? id(tux) : id(base48));

			== Mounting ==
			Needs figuring out.

			Panel got a plenty of mounting holes.

			There's a diffuser (from an old LCD?).

			TODO: Upload FreeCAD models of what we got, pictures of ESP8266-based driver & PCB.

	== Pictures ==		== Pictures ==
Line 76:		Line 85:
	* <s>Port to ESP*</s>		* <s>Port to ESP*</s>
	* Hook to Home Assistant		* Hook to Home Assistant
			* Figure out physical mounting
	* hailsatan		* hailsatan

Klubko at 16:56, 18 March 2026

2026-03-18T16:56:58Z

← Older revision		Revision as of 16:56, 18 March 2026
Line 36:		Line 36:

	Schematic of the 4-bit (9 pins) ESP8266-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/esp8266-adapter-buse-btc004.pdf		Schematic of the 4-bit (9 pins) ESP8266-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/esp8266-adapter-buse-btc004.pdf

			== ESPHome integration ==
			external_components:
			- source:
			type: git
			url: <nowiki>https://codeberg.org/lubko/buse004-1</nowiki>
			path: ./
			components: [ btc004 ]

			image:
			- file: <nowiki>https://codeberg.org/lubko/buse004-1/raw/branch/main/tux.xpm</nowiki>
			type: rgb565
			id: tux
			- file: <nowiki>https://codeberg.org/lubko/buse004-1/raw/branch/main/48.gif</nowiki>
			type: rgb565
			id: base48

			display:
			platform: btc004
			le_pins: [ GPIO05 ]
			clk_pins: [ GPIO04, GPIO15, GPIO02, GPIO00 ]
			data_pins: [ GPIO16, GPIO14, GPIO12, GPIO13 ]
			update_interval: 10666ms
			lambda: \|-
			static bool state;
			it.image(0, 0, (state = !state) ? id(tux) : id(base48));

	== Pictures ==		== Pictures ==

Klubko at 16:55, 18 March 2026

2026-03-18T16:55:39Z

← Older revision		Revision as of 16:55, 18 March 2026
Line 29:		Line 29:

	== Resources ==		== Resources ==
	Repository with sources to schematic and ~~driver~~: https://codeberg.org/lubko/buse004-1		Repository with sources to schematic, Arduino driver and ESPHome component: https://codeberg.org/lubko/buse004-1

	Partial schematic of the panel: https://codeberg.org/lubko/buse004-1/src/branch/main/buse-btc004.pdf		Partial schematic of the panel: https://codeberg.org/lubko/buse004-1/src/branch/main/buse-btc004.pdf

	Schematic of the Arduino-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/arduino-adapter-buse-btc004.pdf		Schematic of the 8-bit Arduino-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/arduino-adapter-buse-btc004.pdf

			Schematic of the 4-bit (9 pins) ESP8266-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/esp8266-adapter-buse-btc004.pdf

	== Pictures ==		== Pictures ==
Line 46:		Line 48:
	== TODO ==		== TODO ==

	* Port to ESP*		* <s>Port to ESP*</s>
	* Hook to Home Assistant		* Hook to Home Assistant
	* hailsatan		* hailsatan

Klubko at 11:20, 12 March 2026

2026-03-12T11:20:26Z

← Older revision		Revision as of 11:20, 12 March 2026
Line 19:		Line 19:
	RGB		RGB

	Not sure which city is it operated in. Brno has green only panels and Bratislava got RGB but of different ~~side~~.		Not sure which city is it operated in. Brno has green only panels and Bratislava got RGB but of different size.

	== Theory of operation ==		== Theory of operation ==

Klubko at 12:25, 11 March 2026

2026-03-11T12:25:20Z

← Older revision		Revision as of 12:25, 11 March 2026
Line 22:		Line 22:

	== Theory of operation ==		== Theory of operation ==
			[[File:Segment-render.png\|thumb\|Pixmap split into segments, like on the panel]]
			LEDs are organized into 24 x 32 pattern on one side, drivers are organized into a grid of 18 x 16 drivers. Three lines of LEDs snake around and are driven by a line of drivers on the other side.

	== ~~Schematic drawings~~ ==		Rows do have common CLK and LE signals. This means both halves of the row must be fed in parallel, but rows are entirely independent of each other.
			[[File:Layout.png\|center\|frameless\|600x600px\|LED & driver layout]]

			== Resources ==
			Repository with sources to schematic and driver: https://codeberg.org/lubko/buse004-1

			Partial schematic of the panel: https://codeberg.org/lubko/buse004-1/src/branch/main/buse-btc004.pdf

			Schematic of the Arduino-based driver: https://codeberg.org/lubko/buse004-1/src/branch/main/arduino-adapter-buse-btc004.pdf

	== Pictures ==		== Pictures ==
Line 34:		Line 44:
	</gallery>		</gallery>

	== ~~Driving the panel~~ ==		== TODO ==

			* Port to ESP*
			* Hook to Home Assistant
			* hailsatan

Klubko at 08:43, 11 March 2026

2026-03-11T08:43:17Z

← Older revision		Revision as of 08:43, 11 March 2026
Line 1:		Line 1:
			{{Project
			\|name=BTC004.1 25x42_10 RGB
			\|image=Btc004-1.jpeg
			\|founder=[[User:Lubko]]
			\|coops=
			\|status=active
			\|tags=hw
			\|shortdesc=Driving a panel from a bus
			\|created=2026
			}}

	== What it is ==		== What it is ==
	A segment of a panel with 768 RGB LEDs on one side driven by chains shift registers on the other side.		A segment of a panel with 768 RGB LEDs on one side driven by chains shift registers on the other side.

	~~Pre~~ PCB is marked:		The PCB is marked:

	BTC004.1		BTC004.1
	24x32_10		24x32_10
	RGB		RGB

	Not sure which city is it operated in. Brno has green only panels and Bratislava got RGB but of different side.		Not sure which city is it operated in. Brno has green only panels and Bratislava got RGB but of different side.

			== Theory of operation ==

	== Schematic drawings ==		== Schematic drawings ==

	== Pictures ==		== Pictures ==
	~~{{Project~~		<gallery>
	\|~~name=BTC004.1 25x42_10 RGB~~		File:Btc004-4.jpeg\|Whole LED array
	~~\|image=~~Btc004-1.jpeg		File:Btc004-2.jpeg\|Arduino driver mounted on the back
	~~\|founder=[[User~~:~~Lubko]]~~		File:Btc004-5.jpeg\|In operation
	\|~~coops=~~		File:Btc004-1.jpeg\|LED side closeup with markings
	\|~~status=active~~		File:Btc004-3.jpeg\|Back closeup
	~~\|tags=hw~~		</gallery>
	~~\|shortdesc=Driving a panel from a bus~~
	\|~~created=2026~~
	}}

	== Driving the panel ==		== Driving the panel ==