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a [https://en.wikipedia.org/wiki/Free_and_open-source_software#FLOSS FLOSS] [[Dedicated Chess Computers|dedicated chess computer]] designed by [[Rasmus Althoff]].
The CT800 features an [https://en.wikipedia.org/wiki/ARM_Cortex-M#Cortex-M4 ARM Cortex M4] [https://en.wikipedia.org/wiki/Microcontroller microcontroller] of an ''Olimex H405'' board <ref>[https://www.olimex.com/Products/ARM/ST/STM32-H405/ Olimex STM32-H405]</ref> that operates up to 168 Mhz, with 1 MiB of [[Memory#ROM|flash memory]], 192+4 kiB of [[Memory#RAM|SRAM]], and multiple [https://en.wikipedia.org/wiki/Input/output I/O] and [https://en.wikipedia.org/wiki/USB USB] connectors, with a 4x20 character [https://en.wikipedia.org/wiki/Text_display text display], two [https://en.wikipedia.org/wiki/Light-emitting_diode leds], and a 4x4 + 1 [https://en.wikipedia.org/wiki/Keypad keypad] as [https://en.wikipedia.org/wiki/Peripheral peripherals] aka [[User Interface|user interface]]. [https://en.wikipedia.org/wiki/Voltage_source Voltage source] is due to four [https://en.wikipedia.org/wiki/Nickel%E2%80%93metal_hydride_battery NiMH] [https://en.wikipedia.org/wiki/Rechargeable_battery rechargeable] [https://en.wikipedia.org/wiki/AA_battery AA batteries] or external 5 V [https://en.wikipedia.org/wiki/Power_supply#DC_power_supply DC power supply].
CT800's [https://en.wikipedia.org/wiki/Firmware firmware] is developed by Rasmus Althoff, released under the [[Free Software Foundation#GPL|GPL Version 3]], the chess playing software is an ARM adaption of [[George Georgopoulos|George Georgopoulos']] [[:Category:Open Source|open source engine]] [[NG-play]] <ref>[https://www.ct800.net/summary.htm CT800 Summary]</ref> including a [[KPK]] [[Endgame Bitbases|bitbase]] by [[Marcel van Kervinck]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=57517 Yet another KPK endgame table generator: pfkpk] by [[Marcel van Kervinck]], [[CCC]], September 05, 2015</ref> <ref>[https://github.com/kervinck/pfkpk kervinck/pfkpk · GitHub]</ref> and runs . The program may be compiled to run on other playtforms platforms via [[UCI]], such as [[Windows]], [[Linux]], [[Mac OS]], and [[Android]] computers, and [[Raspberry Pi]] systems like the [[DGT Pi]].
=Forum Posts=
==2016...==
* [http://www.talkchess.com/forum/viewtopic.php?t=61345 new chess computer: CT800] by [[Rasmus Althoff]], [[CCC]], September 05, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=61976 New idea for "easy move detection"] by [[Rasmus Althoff]], [[CCC]], November 05, 2016 » [[Time Management]]
* [http://www.talkchess.com/forum/viewtopic.php?t=62113 CT800 V1.01] by [[Rasmus Althoff]], [[CCC]], November 13, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=64203 CT800 V1.10 released] by [[Rasmus Althoff]], [[CCC]], June 06, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=64326 CT800 V1.11 release + Winboard-version] by [[Rasmus Althoff]], [[CCC]], June 17, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65449 CT800 V1.12 released] by [[Rasmus Althoff]], [[CCC]], October 14, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=66273 CT800 engine: Android problems?] by [[Rasmus Althoff]], [[CCC]], January 08, 2018 » [[Android]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=66620 CT800 V1.20 released] by [[Rasmus Althoff]], [[CCC]], February 17, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68552 CT800 V1.32 released] by [[Rasmus Althoff]], [[CCC]], October 01, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=68791 CT800 for the macOS] by [[Michael Byrne|MikeB]], [[CCC]], November 01, 2018
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=69533 CT800 V1.33] by [[Rasmus Althoff]], [[CCC]], January 08, 2019
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=69855 CT800 V1.34] by [[Rasmus Althoff]], [[CCC]], February 09, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73570 CT800 V1.40 released] by [[Rasmus Althoff]], [[CCC]], April 05, 2020
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74922 CT800 V1.41 released] by [[Rasmus Althoff]], [[CCC]], August 29, 2020
'''2021'''
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76729 CT800 V1.42 released] by [[Rasmus Althoff]], [[CCC]], February 27, 2021
=External Links=
==Chess Computer==
* [https://www.ct800.net/ CT800 Chess Computer]
* [https://www.ct800.net/download/manual-ct800.pdf Manual CT800] (pdf)
* [https://olimex.wordpress.com/2016/08/29/ct800-embedded-floss-chess-computer-made-with-stm32-h405-oshw-board/ CT800 – embedded FLOSS Chess computer made with STM32-H405 OSHW board | olimex]
==Misc==
* [[:Category:Passport|Passport]] - Handmade, [https://www.discogs.com/de/Passport-2-And-Brian-Auger-Johnny-Griffin-Alexis-Korner-Volker-Kriegel-Pete-York-Doldinger-Jubilee-C/master/62209 Doldinger Jubilee Concert] @ 14th [https://en.wikipedia.org/wiki/Deutsches_Jazzfestival Deutsches Jazzfestival], [https://en.wikipedia.org/wiki/Frankfurt Frankfurt], September 27, 1974, [https://en.wikipedia.org/wiki/YouTube YouTube] Video
: [[:Category:Klaus Doldinger|Klaus Doldinger]], [https://en.wikipedia.org/wiki/Johnny_Griffin Johnny Griffin], [https://en.wikipedia.org/wiki/Kristian_Schultze Kristian Schulze], [[:Category:Brian Auger|Brian Auger]], [[:Category:Volker Kriegel|Volker Kriegel]], [https://en.wikipedia.org/wiki/Alexis_Korner Alexis Korner], [[:Category:Wolfgang Schmid|Wolfgang Schmid]], [[:Category:Curt Cress|Curt Cress]], [https://en.wikipedia.org/wiki/Pete_York Pete York]
: {{#evu:https://www.youtube.com/watch?v=MljLCngq1fg|alignment=left|valignment=top}}
=References=
<references />
'''[[Engines|Up one Level]]'''
[[Category:Open Source]]
[[Category:GPL]]
[[Category:UCI]]
[[Category:WinBoard]]
[[Category:Mac]]
[[Category:Android]]
[[Category:Linux]]
[[Category:Windows]]
[[Category:Dedicated]]
[[Category:Passport]]
[[Category:Brian Auger]]
[[Category:Curt Cress]]
[[Category:Klaus Doldinger]]
[[Category:Volker Kriegel]]
[[Category:Wolfgang Schmid]]
