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Cees Meijer

Electronic engineer, programmer, designer since the seventies. Always 5 unfinished projects on the shelf...

Purmerend, The Netherlands
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16 Followers
37 Following
11 Projects
186 Likes
cees-meijer
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This user joined on 05/22/2019.

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Recreation of the 'Fastest computer in the Universe' that runs FORTH.
Project Owner Contributor

Recreating the Jupiter Ace

cees-meijerCees Meijer

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Creating a real echosounder from scratch
Project Owner Contributor

DIY Echosounder

cees-meijerCees Meijer

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An autonomous little boat that scans and maps lakes and rivers.
Project Owner Contributor

Small Autonomous Survey Vessel

cees-meijerCees Meijer

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Recreating this iconic (and mostly useless) computer from the eighties
Project Owner Contributor

ZX80 replica

cees-meijerCees Meijer

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Reviving my Atari Lynx games on modern hardware
Project Owner Contributor

RetroPie - Handheld

cees-meijerCees Meijer

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Another Virtual Pinball machine, using scrapped parts.
Project Owner Contributor

Virtual Pinball

cees-meijerCees Meijer

View all 11 projects

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Create a working DSKY using a 3D printer and my AGC simulator running on a Raspberry Pi and slave Arduino Nanos.
Project Owner Contributor

DSKY

wglasfordwglasford

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Development of an open-source SONAR, echo sounder, fish finder using standard, easy-to-source components. DIYable and hackable.
Project Owner Contributor

a DIY open-source SONAR

jan-neumannJan Neumann

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The World's First Battery-Powered All-In-One Portable Amstrad CPC!
Project Owner Contributor

The Amstrad CPC Portable

michael-wesselMichael Wessel

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Simple Single Chip Computer running MCS BASIC-52 with wireless connectivity between PC or Phone. No external crystal, latch or RAM required!
Project Owner Contributor

Single Chip Computer

mit41301mit41301

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This Arduino-MEGA based microcomputer has a DIY hardware terminal and runs Terminal-BASIC!
Project Owner Contributor

80's style BASIC Computer with Terminal-BASIC

johnJohn

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My 'modern' take on the Tandy TRS-80 Model 100.
Project Owner Contributor

VCF-80 Model 100

evan-scheelEvan Scheel

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The plan is to make a reproduction of the dedicated chess computer CHESSmate released by Commodore in 1978.
Project Owner Contributor

Commodore CHESSmate Reproduction

michael-gardiMichael Gardi

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Give your Microprofessor MPF-1B (and other machines) a versatile SD card interface - no more cassettes!
Project Owner Contributor

PicoRAM 6116 - SRAM Emulator & SD Card Interface

michael-wesselMichael Wessel

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Development board for the CH32X035F7P6 low-cost 32-bit RISC-V microcontroller with native USB2.0 and USB PD
Project Owner Contributor

CH32X035 F7P6 Development Board

stefan-wagnerStefan Wagner

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A virtual pinball cabinet built largely from scrap and recycled materials, powered by an Intel N100 mini-PC
Project Owner Contributor

Bartop Virtual Pinball Cabinet

valkyrie0528valkyrie0528

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They say that the third time's a charm. Let's find out.
Project Owner Contributor

TMD-3: Turing Machine Demonstrator Mark 3

michael-gardiMichael Gardi

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HamRadio SDR+Pi CyberDeck.
Project Owner Contributor

Luggage

bill-hillBill Hill

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A display module for 3d-printers made out of vintage mil-spec LED display modules
Project Owner Contributor

VinDisplay

michaelMichael

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A Raspberry Pi HAT for Atari 2600 cartridges with joystick support, exposing classic switches and buttons for a neo-authentic experience.
Project Owner Contributor

Pitari: A Raspberry Pi Atari 2600 HAT

vincentVincent

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Using a sonar echo sounder, GPS and Arduino to map lakes and rivers.
Project Owner Contributor

Water depth mapping

jan-neumannJan Neumann

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Development of an Echosounder System.
Project Owner Contributor

Design of an Echosounder system

luicers-labLuicer's Lab

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Goal: Build a replica, using an actual 8008-1 chip, of the "rack" machine used at Micro Computer Machines when developing the MCM/70.
Project Owner Contributor

Rack8 MCM/70 rack machine replica

camfarnellcamfarnell

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There is little difference among the three modules in terms of their upper computer (PC-side) control software.
Project Owner Contributor

A Comparison of Three Radar Modules

ai-thinkerAi-Thinker

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Michael Gardi wrote 01/05/2026 at 22:13 • point

Hey Cees. Been a while. Welcome to my venture into software blogging. 

  Are you sure? yes | no

Cees Meijer wrote 01/07/2026 at 20:01 • point

Hi Michael. Yep, my hackaday activity has been limited lately. But I'm glad to see you're still going strong. And now I'm almost tempted to buy the PiDP 1...

  Are you sure? yes | no

Michael Gardi wrote 12/25/2023 at 19:34 • point

Thanks for liking and following my Commodore CHESSmate Reproduction project Cees. I thought about your ZX80 project when I was modelling the case.  

  Are you sure? yes | no

Michael Gardi wrote 07/24/2023 at 12:25 • point

Thanks for your interest in my TMD-3: Turing Machine Demonstrator Mark 3 project Cees. 

  Are you sure? yes | no

Michael Gardi wrote 09/27/2021 at 19:33 • point

Thank you for your interest in my Sol-20 Reproduction project Cees!

  Are you sure? yes | no

andrei.erdei wrote 04/17/2020 at 20:43 • point

Thank you for liking my #Game of Life Coffee Table project!

  Are you sure? yes | no

Ken Yap wrote 08/06/2019 at 07:14 • point

Thanks for the follow. More to come.

  Are you sure? yes | no

Thomas wrote 08/04/2019 at 19:05 • point

Thanks for the like :-)

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