Layton Bit Stripper: Difference between revisions
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The Layton Bit Stripper is comprised of a custom PCB and off-the-shelf power supplies and outer enclosure.
As of August 10, 2022, the Layton Bit Stripper is temporarily unavailable for sale due to unavailable parts resulting from the ongoing semiconductor shortage.
== PCB Revisions ==
[[File:Layton Bit Stripper Rev. A.2 PCB.png|thumb|Rev. A.2 PCB]]
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* '''Bitstripper 1.1B''' - Fixed a previously undetected bug which caused outputs to be updated 600 microseconds later than they should be
* '''Bitstripper 1.1C''' - Increased the movement diagnostic cycle time to allow longer stroke movements to fully extend and retract
* '''Bitstripper 1.1D''' - Fixed a previously undetected bug which erroneously mapped Dook’s right head turn movement to his right elbow bit. Current release as of August 10, 2022.
There are two custom code versions designed for special applications:
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Revision as of 06:53, 10 August 2022
![](http://static.miraheze.org/decodedocdigitizewiki/thumb/f/fd/Layton_Bit_Stripper_-_Green_PCB.png/300px-Layton_Bit_Stripper_-_Green_PCB.png)
The Layton Bit Stripper is an animatronic character controller designed by Layton Sanders in 2018 and available for purchase from Creative Engineering beginning in 2019. The controller accepts standard Pianocorder format biphase data as input and can drive any Rock-afire Explosion character, with data passthrough to controllers for additional characters. A movement test feature is also available. 30 LEDs show power, per-channel output status, and data sync.
The Layton Bit Stripper is comprised of a custom PCB and off-the-shelf power supplies and outer enclosure.
As of August 10, 2022, the Layton Bit Stripper is temporarily unavailable for sale due to unavailable parts resulting from the ongoing semiconductor shortage.
PCB Revisions
![](http://static.miraheze.org/decodedocdigitizewiki/thumb/2/2c/Layton_Bit_Stripper_Rev._A.2_PCB.png/300px-Layton_Bit_Stripper_Rev._A.2_PCB.png)
Three revisions of the Layton Bit Stripper exist:
- Rev. A - Green PCB, no bypass switch, no expansion port, unpopulated 5V regulator footprint, no external buttons, individual LED resistors, different output drivers than future revisions, never publicly revealed due to functional problems
- Rev. A.1 - Green PCB, no bypass switch, no expansion port, unpopulated 5V regulator footprint, no external buttons, individual LED resistors
- Rev. A.2 - Red PCB, waveshaper bypass switch, 12-pin expansion port footprint, requires both 5V and 24V supplies, two external buttons, resistor networks for LEDs
Software Revisions
There are five public software revisions for the Layton Bit Stripper:
- Bitstripper 1.0 - Initial release, lacking movement diagnostic external button support, only used in experimental Rev A boards and the first five Rev. A.1 boards
- Bitstripper 1.1 - Identical to previous release with the addition of diagnostic button support
- Bitstripper 1.1B - Fixed a previously undetected bug which caused outputs to be updated 600 microseconds later than they should be
- Bitstripper 1.1C - Increased the movement diagnostic cycle time to allow longer stroke movements to fully extend and retract
- Bitstripper 1.1D - Fixed a previously undetected bug which erroneously mapped Dook’s right head turn movement to his right elbow bit. Current release as of August 10, 2022.
There are two custom code versions designed for special applications:
- TODO: Second generation Dook custom code information
- Shavers 1.1D - Designed to operate the Four Little Shavers, owned by Volo Auto Museum as of August 10, 2022. Based on Bitstripper 1.1D but has shorter data frames than standard Pianocorder data with only 24 control bits and a different synchronization system. When using movement diagnostic buttons, Curly’s right elbow and right arm twist always actuate at the same time because of the potential of his mirror hitting and damaging his nose if the arm is kept retracted when the arm twist actuates.
I/O
- Permanently-attached AC power cord
- Data input (RCA jack)
- Data output (RCA jack)
- Character output connector (TODO: centronics something-or-other)
- 2x momentary pushbuttons (bit test select, bit pulse)
- 30 LEDs (arranged in 3x 10-LED bargraphs)
- 5 DIP switch (character select)
- 12-pin expansion footprint
Hardware breakdown
- ATmega328 MCU (presumed, covered by sticker)
- 3x 74HC595 (serial to parallel)
- 6x SN75437 (output drivers)
- TODO: unknown audio interface components
Character select DIP switch settings
Switch setting | Name | # of bits |
---|---|---|
00000 | Disable bitstripper | 0 |
00001 | Rolfe and Earl | 22 |
00010 | Dook | 17 |
00011 | Fatz | 16 |
00100 | Organ and Sign | 14 |
00101 | Spots | 8 |
00110 | Curtains | 6 |
00111 | Spots and Curtains | 14 |
01000 | Props | 8 |
01001 | Beach Bear | 16 |
01010 | Looney Bird | 6 |
01011 | Mitzi | 19 |
01100 | Billy Bob | 20 |
01101 | Floods | 12 |
01110 | Specials | 3 |
01111 | Stage lights | 19 |
1xxxx | Future use | - |