Dancing Cactus - Revision history

46.5.2.129: Added Link to boot loader infos

2023-09-30T08:13:59Z

Added Link to boot loader infos

← Older revision		Revision as of 08:13, 30 September 2023
Line 48:		Line 48:

	~4Kbytes		~4Kbytes
	\|Boot data? The microprocessor's firmware? Starts with some header and then "SH54"?{{Highlight		\|Boot data? The microprocessor's firmware? Starts with some header and then "[https://github.com/Jieli-Tech/fw-Bootloader#sdk%E4%B8%8Ebootloader%E7%B3%BB%E5%88%97%E5%AF%B9%E5%BA%94%E8%AF%B4%E6%98%8E SH54]"?{{Highlight
	\| code = 00000000: 2558 bf1d 302e 3031 f0c1 b367 c4ad ff97 %X..0.01...g....		\| code = 00000000: 2558 bf1d 302e 3031 f0c1 b367 c4ad ff97 %X..0.01...g....
	00000010: 5348 3534 ffff ffff ffff ffff ffff ffff SH54............		00000010: 5348 3534 ffff ffff ffff ffff ffff ffff SH54............

Leo at 06:02, 7 January 2022

2022-01-07T06:02:33Z

← Older revision		Revision as of 06:02, 7 January 2022
Line 24:		Line 24:

	==Hardware==		==Hardware==
	The cactus has a small board with a JL AB21BP0K098-42A0 ~~microprocessor~~ and a T25S80 flash chip. ~~Unfortunately, I was unable to find any reference to this microprocessor to give any clues as to how it works~~. The flash chip appears to be similar to the N25S80 SPI flash chip from a different vendor.		The cactus has a small board with a 16-pin JL microprocessor (labeled AB21BP0K098-42A0) and a T25S80 flash chip. JL is likely Zhuhai Jieli Technology. There is a [https://electronics.stackexchange.com/questions/243531/help-for-identifying-pinout-of-unknown-mp3-chip Stack Exchange thread] about similar chips and the label is likely some sort of serial number with the '21' being the year of manufacturing. The flash chip appears to be similar to the N25S80 SPI flash chip from a different vendor.

	An image of the board is available below.		An image of the board is available below.

Leo: Removed hardware category

2021-12-30T02:15:59Z

Removed hardware category

← Older revision		Revision as of 02:15, 30 December 2021
Line 387:		Line 387:
	{{Navbox Tinkering}}		{{Navbox Tinkering}}
	[[Category:Tinkering]]		[[Category:Tinkering]]
	~~{{Navbox Hardware}}~~
	~~[[Category:Hardware]]~~

Leo: Categories

2021-12-19T20:44:35Z

Leo at 20:42, 19 December 2021

2021-12-19T20:42:42Z

← Older revision		Revision as of 20:42, 19 December 2021
Line 1:		Line 1:
	[[File:Dancing Cactus.jpg\|alt=A dancing cactus that sings\|thumb\|297x297px\|A dancing cactus that sings]]The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.		[[File:Dancing Cactus.jpg\|alt=A dancing cactus that sings\|thumb\|297x297px\|A dancing cactus that sings]]The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.

	== Short Review ==		==Short Review==
	After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there are around a total of a dozen songs or sound clips which would be played twice in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then immediately pressing the playback button will play a sound clip without the dancing and lights.		After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there are around a total of a dozen songs or sound clips which would be played twice in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then immediately pressing the playback button will play a sound clip without the dancing and lights.
	{\| class="wikitable"		{\| class="wikitable"
Line 255:		Line 255:
	*The headers here don't match any of the audio formats that JL provides for the AD140 (.a, .e, .f1a, f1c, f1x, ump3)		*The headers here don't match any of the audio formats that JL provides for the AD140 (.a, .e, .f1a, f1c, f1x, ump3)
	*I think some tracks loop indefinitely. Everything else seems to play back two times. Is this controlled by a flag somewhere?		*I think some tracks loop indefinitely. Everything else seems to play back two times. Is this controlled by a flag somewhere?

			I slapped on a real .wav file header to each of these audio tracks to see what I can hear. All tracks sound like noise. The last one however does contain my custom recording but it was also full of noise implying there's still some sort of encoding that's happening.

	Here are the headers from the entire dump:		Here are the headers from the entire dump:

Leo at 09:51, 19 December 2021

2021-12-19T09:51:48Z

← Older revision		Revision as of 09:51, 19 December 2021
Line 1:		Line 1:
	The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.		[[File:Dancing Cactus.jpg\|alt=A dancing cactus that sings\|thumb\|297x297px\|A dancing cactus that sings]]The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.
	~~[[File:Dancing Cactus.jpg\|alt~~=~~A dancing cactus that sings\|thumb\|297x297px\|A dancing cactus that sings]]~~
	After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there ~~were maybe~~ a total of a dozen ~~or so~~ songs or sound clips which would be played in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then ~~double~~ pressing the playback button, a sound clip ~~will be played~~ without ~~turning on~~ the ~~motor or~~ lights.		== Short Review ==
			After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there are around a total of a dozen songs or sound clips which would be played twice in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then immediately pressing the playback button will play a sound clip without the dancing and lights.
			{\| class="wikitable"
			!Pros
			!Cons
			\|-
			\| + Looks pretty good and funky
			+ Has a voice recorder feature for one up to 10 second clip

			+ Takes 3 AA batteries

			+ Cheap
			\| - Doesn't have 120 songs. Probably has around 12 unique songs.
			- Music playback is annoyingly loud and audio quality is pretty poor

			- Despite it being marketed as a dancing cactus, it doesn't actually dance to the music.

			- Arrived without any packaging which resulted in the bottom zip tie being broken during shipment. The felt part was sliding up as a result.

			- Doesn't come with any instructions
			\|}

	==Hardware==		==Hardware==
	The cactus has a small board with a JL AB21BP0K098-42A0 microprocessor and a T25S80 flash chip. An image of the board is available below.		The cactus has a small board with a JL AB21BP0K098-42A0 microprocessor and a T25S80 flash chip. Unfortunately, I was unable to find any reference to this microprocessor to give any clues as to how it works. The flash chip appears to be similar to the N25S80 SPI flash chip from a different vendor.

			An image of the board is available below.
	[[File:Dancing Cactus Board.jpg\|alt=Dancing Cactus Board\|center\|thumb\|Dancing Cactus Board]]		[[File:Dancing Cactus Board.jpg\|alt=Dancing Cactus Board\|center\|thumb\|Dancing Cactus Board]]
	Connected to the board are:		Connected to the board are:
Line 23:		Line 45:
	\|-		\|-
	\|0x0000		\|0x0000
	\|Boot data? Starts with:{{Highlight		+0xfff

			~4Kbytes
			\|Boot data? The microprocessor's firmware? Starts with some header and then "SH54"?{{Highlight
	\| code = 00000000: 2558 bf1d 302e 3031 f0c1 b367 c4ad ff97 %X..0.01...g....		\| code = 00000000: 2558 bf1d 302e 3031 f0c1 b367 c4ad ff97 %X..0.01...g....
	00000010: 5348 3534 ffff ffff ffff ffff ffff ffff SH54............		00000010: 5348 3534 ffff ffff ffff ffff ffff ffff SH54............
Line 186:		Line 211:
	\|-		\|-
	\|????		\|????
	\|Always		\|Always, bits per sample?
	1000		1000
	\|Always		\|Always
Line 229:		Line 254:
	*It's odd that the bulk of the flash (744KB) isn't for audio data. Perhaps these records here refer to the data stored there?		*It's odd that the bulk of the flash (744KB) isn't for audio data. Perhaps these records here refer to the data stored there?
	*The headers here don't match any of the audio formats that JL provides for the AD140 (.a, .e, .f1a, f1c, f1x, ump3)		*The headers here don't match any of the audio formats that JL provides for the AD140 (.a, .e, .f1a, f1c, f1x, ump3)
			*I think some tracks loop indefinitely. Everything else seems to play back two times. Is this controlled by a flag somewhere?

	Here are the headers from the entire dump:		Here are the headers from the entire dump:

Leo at 23:30, 18 December 2021

2021-12-18T23:30:57Z

Show changes

Leo at 23:25, 18 December 2021

2021-12-18T23:25:24Z

← Older revision		Revision as of 23:25, 18 December 2021
Line 1:		Line 1:
	The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.		The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.
			[[File:Dancing Cactus.jpg\|alt=A dancing cactus that sings\|thumb\|297x297px\|A dancing cactus that sings]]
	After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there were maybe a total of a dozen or so songs or sound clips which would be played in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then double pressing the playback button, a sound clip will be played without turning on the motor or lights.		After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there were maybe a total of a dozen or so songs or sound clips which would be played in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then double pressing the playback button, a sound clip will be played without turning on the motor or lights.

Line 9:		Line 9:

	*2 buttons (one for playing a random track, one for recording/replaying a voice recording)		*2 buttons (one for playing a random track, one for recording/replaying a voice recording)
	*a tiny speaker		*a tiny speaker (I later connected a 200 ohm resistor in series to lower the volume)
	*a microphone		*a microphone
	*a motor which goes through some gears and up to the dancing cactus		*a motor which goes through some gears and up to the dancing cactus
Line 185:		Line 185:
	!Byte 15+16		!Byte 15+16
	\|-		\|-
	\|~~Length~~?		\|????
	~~41c6~~
	\|Always		\|Always
	1000		1000
	\|Always		\|Always
	00ff		00ff
	\|~~ffff - always~~		\|Always
			FFFF
	\|Length? /8?		\|Length? /8?
	3401, 8407, f400 ?		3401, 8407, f400 ?
	\|0000 ~~- always~~		\|0000 (prerecorded?)
			0100 (custom?)
	\|Track ID		\|Track ID
	~~1801, 1901, 1a01, 1b01, 0001, 0201, 0301,~~		<br />
	\|0000 ~~- always~~		\|Always
			0000
	\|-		\|-
	\|Header		\|Header "WA"
	5741 ~~(WA)~~		5741
	\|Header		\|Header "V."
	5604 ~~(V.)~~		5604
	\|???		\|???
	7777, 77ff, 7fff, ffff		7777, 77ff, 7fff, ffff
	\|???		\|???
	ffff, 77ff, ffb9,		ffff, 77ff, ffb9,
	\|~~Length~~?~~<br />~~		\|???
	\|??? Audio		\|??? Audio
	\|??? Audio		\|??? Audio
Line 222:		Line 224:
	\|?? Audio		\|?? Audio
	\|}		\|}
	~~I also find it~~ odd that the bulk of the flash (744KB) isn't for audio data. Perhaps these records here refer to the data stored there?		Some random thoughts:

			* Interestingly, the track ID starts from 1801 through to 1b01, then looping back to 0001, 0101, ... 1701. The last audio clip after 1701 is 0d00.
			* It's odd that the bulk of the flash (744KB) isn't for audio data. Perhaps these records here refer to the data stored there?

	Here are the headers from the entire dump:		Here are the headers from the entire dump:
	~~{{Highlight~~
	~~\| code = 000bb000: 41c6 1000 00ff ffff 3401 0000 1801 0000 A.......4.......~~
	~~000bb010: 5741 5604 77ff ffff 1758 888b 8080 8808 WAV.w....X......~~
	~~000bb020: 0088 0088 081c 9100 8088 11ab 12da 1270 ...............p~~
	--
	~~000bc000: 8daa 1000 00ff ffff 8407 0000 1901 0000 ................~~
	~~000bc010: 5741 5604 ffff ffff f118 0815 0880 0880 WAV.............~~
	~~000bc020: 0808 8008 091d a281 9880 8119 bbf8 291a ..............).~~
	--
	~~000bd000: 1998 1000 00ff ffff f400 0000 1a01 0000 ................~~
	~~000bd010: 5741 5604 7fff 77ff 41bc 862a 8080 8088 WAV...w.A..*....~~
	~~000bd020: 0088 0808 081b a101 8908 a805 8802 ab19 ................~~
	--
	~~000be000: f603 1000 00ff ffff 9402 0000 1b01 0000 ................~~
	~~000be010: 5741 5604 7fff ffb9 2943 f851 8080 8080 WAV.....)C.Q....~~
	~~000be020: 8088 1919 2c6f fa91 1098 1008 12bb 011c ....,o..........~~
	--
	~~000bf000: fa3b 1000 00ff ffff 8402 0000 0001 0000 .;..............~~
	~~000bf010: 5741 5604 7777 77fb 75bd 052c 8080 8080 WAV.www.u..,....~~
	~~000bf020: 8800 8800 8808 80cb 239d a111 1092 5988 ........#.....Y.~~
	--
	~~000c0000: 8262 1000 00ff ffff 1411 0000 0101 0000 .b..............~~
	~~000c0010: 5741 5604 77ff 7779 a341 8c71 b41b 8ae0 WAV.w.wy.A.q....~~
	~~000c0020: 8800 8800 8088 0080 92fc 38b1 5a91 0808 ..........8.Z...~~
	--
	~~000c2000: 0a89 1000 00ff ffff b405 0000 0201 0000 ................~~
	~~000c2010: 5741 5604 ffff ffcf 9099 08a2 72a0 3060 WAV.........r.0`~~
	~~000c2020: 8088 0088 0088 0088 0093 0071 99b3 789b ...........q..x.~~
	--
	~~000c3000: 72d8 1000 00ff ffff 1403 0000 0301 0000 r...............~~
	~~000c3010: 5741 5604 77ff 7777 ff25 0998 8080 8800 WAV.w.ww.%......~~
	~~000c3020: 8088 0800 8808 900b 862a a8c8 3111 b93a .........*..1..:~~
	~~\| lang = text~~
	}}

	==See Also==		==See Also==
	===Big Clive's Buddha flower===		===Big Clive's Buddha flower===

Leo at 23:03, 18 December 2021

2021-12-18T23:03:56Z

@@ Line 136: / Line 136: @@
 x0dafff
-|A total of 27 audio clips (including the two above). Most spans 1 0x1000 blocks. A few spans 2 0x1000 blocks.
+|A total of 27 audio clips (including the two above). Most spans 1 0x1000 blocks. A few spans 2 0x1000 blocks. I wrote a quick bash script to printt out these boundaries.{{Highlight
 |-
 |0x0DB000

Leo at 23:02, 18 December 2021

2021-12-18T23:02:24Z

← Older revision		Revision as of 23:02, 18 December 2021
Line 1:		Line 1:
	The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.		The dancing cactus is a toy that stirred up a small controversy in late 2021 after a Polish grandmother purchased it from Walmart only to find out that it contains the Polish cow meme song. I found and purchased one on Ebay for approximately $17 CAD which supposedly contains 120 songs and the ability to record a short message. My intention is to hack it to play my own sound clips.

	After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there were maybe a dozen or so songs or sound clips ~~whenever~~ the playback button is pressed. ~~The order of~~ the ~~songs also appear random~~. It ~~has a voice record function which~~ can be ~~triggered~~ by ~~holding~~ the ~~second~~ button ~~down until it beeps~~. ~~The recording ends when the second button is released or when 10 seconds have elapsed. While~~ on, it will ~~also~~ play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years.		After receiving the cactus, my initial impression of the toy is mixed. I like how silly the thing looks, but the audio is terrible and obnoxiously loud. Despite the listing saying it contains 120 songs, I think there were maybe a total of a dozen or so songs or sound clips which would be played in random order when the playback button is pressed. There is a second 'recorder' button which when held down will activate the voice recorder feature. It is capable of recording any custom sound clip of up to 10 seconds and can be replayed back by pressing the recorder button again. When switched on, it will play back any loud sounds the microphone picks up, similar to those cheap mimicry toys that have been available for the past few years. Interestingly, I noticed that pressing the record button and then double pressing the playback button, a sound clip will be played without turning on the motor or lights.

	==Hardware==		==Hardware==
Line 15:		Line 15:

	==Flash dump==		==Flash dump==
	Because the flash chip has both DI and DO connected together on the board and that the microprocessor is powered by the same rail, I decided to desolder the flash chip for the dump to avoid any interference. The flash dump was done using a Raspberry Pi using its SPI interface. While the flash chip was removed, the cactus doesn't work which suggests that some program code is stored on the flash. None of the buttons respond and no playback occurs. The motor and lights were constantly on however.		Because the flash chip has both DI and DO connected together on the board and that the microprocessor is powered by the same rail, I decided to desolder the flash chip for the dump to avoid any interference from the microprocessor. The flash dump was done using a Raspberry Pi using its SPI interface. While the flash chip was removed, the cactus doesn't work which suggests that some program code is stored on the flash. None of the buttons respond and no playback occurs. The motor and lights were constantly on however.

	After some tinkering with the [[flashrom]] utility to force it to accept the flash chip ID, I was able to dump the contents of the flash chip. Unfortunately, I'm unable to make much of the flash layout since most of the content appears to be encoded. There are 34 sections of what appears to be some sort of audio tracks near the end of the dump which corresponds to the amount of unique sound clips.		After some tinkering with the [[flashrom]] utility to force it to accept the flash chip ID, I was able to dump the contents of the flash chip. Unfortunately, I'm unable to make much of the flash layout since most of the content appears to be encoded. There are 34 sections of what appears to be some sort of audio tracks near the end of the dump which corresponds to the amount of unique sound clips.
Line 55:		Line 55:

	(761,856) bytes		(761,856) bytes
	\|Encoded data? ~~Maybe a XOR type~~ cypher?{{Highlight		\|Encoded data? Some sort of cypher?{{Highlight
	\| code = 00001000: efd6 722b 1f3f 6cf8 dc9b a267 4dbf 5b97 ..r+.?l....gM.[.		\| code = 00001000: efd6 722b 1f3f 6cf8 dc9b a267 4dbf 5b97 ..r+.?l....gM.[.
	00001010: 6e6e 4c27 b0f1 422f c371 7647 2898 cf9f nnL'..B/.qvG(...		00001010: 6e6e 4c27 b0f1 422f c371 7647 2898 cf9f nnL'..B/.qvG(...
Line 132:		Line 132:
	}}		}}
	\|-		\|-
	\|... ~~every 0x1000~~		\|0x0bd000
	\|... ~~Audio data n~~		...

			0x0dafff
			\|A total of 27 audio clips (including the two above). Most spans 1 0x1000 blocks. A few spans 2 0x1000 blocks.
	\|-		\|-
	\|~~0x0EB000~~		\|0x0DB000
	\|~~Audio~~ data 34		to the end?
			\|This might be the user's voice recording. It initially had a few WAV entries, but when I recorded for the full 10 seconds, this section was completely overwritten with data. There is no WAV header.
	\|}		\|}

Line 226:		Line 230:
	}}		}}

	== See Also ==		==See Also==
	=== Big Clive's Buddha flower ===		===Big Clive's Buddha flower===
	Big Clive did a teardown of a buddha flower a few months earlier. There's a discussion on the flash dump that he uploaded on Reddit: https://old.reddit.com/r/BigCliveDotCom/comments/pmt390/buddha_machine_teardown_with_flash_dump/?sort=new		Big Clive did a teardown of a buddha flower a few months earlier. There's a discussion on the flash dump that he uploaded on Reddit: https://old.reddit.com/r/BigCliveDotCom/comments/pmt390/buddha_machine_teardown_with_flash_dump/?sort=new

	The flash dump and similar ones others have uploaded are quite different from this one, but I think it's based on a similar JL microprocessor.		The flash dump and similar ones others have uploaded are quite different from this one, but I think it's based on a similar JL microprocessor.

← Older revision		Revision as of 20:44, 19 December 2021
Line 384:		Line 384:

	The flash dump and similar ones others have uploaded are quite different from this one, but I think it's based on a similar JL microprocessor.		The flash dump and similar ones others have uploaded are quite different from this one, but I think it's based on a similar JL microprocessor.

			{{Navbox Tinkering}}
			[[Category:Tinkering]]
			{{Navbox Hardware}}
			[[Category:Hardware]]