Wilf Rigter

From BEAM Robotics Wiki

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The Master BEAMer

Canadian, Wilf Rigter is Senior Technologist at Powertech, in Surrey, BC. But more importantly, he is one of (if not) the most prolific designers and interpreters of BEAM-tech on the planet. Over the years he has contributed a number of excellent articles explaining the workings of a variety of BEAM circuits, and has provided answers to untold questions and helped to solve many difficult circuit problems for BEAMers of every age and skill level.

His web page on Solarbotics.net is listed as a reference on the bottom-right corner of page #528, of the "Robot Builder's Sourcebook" By: Gordon McComb. In fact his influence in the world of [BEAM]] robotics has been so great that the anniversary of his first post to the original BEAM email list (December 7, 1998) is often marked by BEAMers with the greeting "Happy Wilf Day".

Always the true renaissance man, Wilf has also greatly contributed to fans of the old Sinclair ZX81 computer (aka Timex Synclair 1000). Even designing his own discrete logic clone of the ZX81 that he called the ZX97. A few links related to his work in this area are listed at the bottom of this page.

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Contents 1 Wilf's contributions 1.1 Wilf on Nervous Networks 1.2 Wilf's Robots 1.3 Wilf's Neurons 1.4 Sensor Circuits 1.5 Wilf's Cores 1.6 Miscellaneous Circuits 1.7 Miscellaneous Articles, Comments and Analysis' 2 External Links 3 WIlf's ZX Stuff

[edit] Wilf's contributions

The following is a short and very incomplete list of Wilf's many articles and circuit contributions to BEAM robotics:

• Wilf's first post to the original BEAM email list "ETC" Voltage (E) Controlled Time Constant

Sent on: Dec 7, 1998 - Re-posted (by request)to the BEAM group on Yahoo (See: Message #53628 - May 20, 2006)

[edit] Wilf on Nervous Networks

• "BiCores (suspended, isolated, Schmitt)"

Sent to the original BEAM email list, with a copy sent to the alt-beam list

(see:Message 58 - Jan 31, 1999)

• "The "belt and suspenders" BiCore Circuits"

Sent to the original BEAM email list with the above, with a copy sent to the alt-beam list

(see:Message 58 - Jan 31, 1999 Half way down the page)

• "Linked BiCores; How Does The Slave Cycle?"

Sent to:'Wouter Brok' (CC: the original BEAM email list on:12 Apr 1999

• "Slave BiCore Operation"

Sent to the original BEAM email list on: 17 Apr 1999

• "NERVOUS NEURONS- Processes and Transitions"

• " Hypersaturation, wavefront processors, -Nv/+Nv etc"

Posted to the alt-beam list on Yahoo - Feb 11, 2000 - Message #10064

• "BEAMant - Description of circuit operation - Overview of circuit operation and probable behaviours"

[edit] Wilf's Robots

• The Power Smart Head
  • "BEAM Heads 101"

• Quadra Walker (AKANot So Dummy Opamp Walker -or- Quadrature Opamp Walker

• uCrawler

[edit] Wilf's Neurons

• Hardened Nv Neurons
• The N/2 Neuron
• Non-Resettable Nv
• The NuTron
• The Spiking Burst Neuron (AKA SB Neuron)
• Wilf's axon-hillock and axon delay circuits

[edit] Sensor Circuits

• I-Mirror

[edit] Wilf's Cores

• Monocore
• Nu Cores
• The Original NuRing
• QCORE
• PNCFree Microcore
• Servocore, AKA uServo

[edit] Miscellaneous Circuits

• ANIMATED LCD NAME TAG
• BEAM Sonics
• NuStepper (A Nu based stepper motor controller)
• Rigter oscillators
• SCANMANv1 - BEAM SONIC MOTOR CONTROL
• Zero Volt Diode

[edit] Miscellaneous Articles, Comments and Analysis'

• Analysis of Ben Hitchcock's "Dummy" and "Not So Dummy" Walker
• Analysis of W. Grey Walter's "Machina Speculatrix"
• Wilf’s Thought Experiment and some thoughts from Bruce Robinson it inspired.

[edit] External Links

• Wilf’s BEAM Page - broken link
• Wilf’s BEAM Column
• The BEAM Heretic’s, “Rigter Archive”
• Chiu-Yuan Fang’s, “Rigter's NuPages”
• A word doc. file containing a number of Wilf's post can he found here

[edit] WIlf's ZX Stuff

• Wilf’s “ZX81 RULES OK!” Page
• Wilf's ZX97 aticle
• ZX97 Lite

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