Stephen C Cousins

3,367 orders since Sep 20, 2018

Stowmarket, Suffolk, United Kingdom

Ships from United Kingdom.

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Overall Rating:

Review Breakdown

Average Ratings

Product: (4.97)

Documentation: (4.90)

Shipping: (4.91)

Communication: (4.92)

All Reviews

Keith | Oct. 28, 2024

Considering an RC2014? This is the one!

For SC126 RCBus Z180 SBC/Motherboard Kit

I honestly feel like this is *the* choice for a good entry into the world of RC2014 compatible systems. RomWBW provides a ton of support programs and drivers to get you started; and having full RCbus compatibility is amazing. It was super easy and a joy to spend an afternoon with my soldering iron to put it all together, thanks to Mr. Cousin's extremely well-written documentation! Not to mention his gracious support and patience answering all my questions before I purchased. Plus the price really can't be beat! Shipping from the UK to the US was fast too! Can't wait to add more modules to an amazing little computer.

David | Oct. 11, 2024

Exactly what I needed.

For SC148 RCBus-40pin Power Module Kit for RC2014

I got this for my sc100 build, primarily to add its reset supervisor to the circuit. Now the system can be powered either by 8-15v or 5v inputs and it's added a great deal of versatility and reliability to my build!

David | Oct. 11, 2024

Verticality!

For SC729 RCBus-80pin Compact Flash Module Kit

An excellent, vertical option for the CF card adapter. Very happy with it. This is paired with my largest backplane to reduce its footprint a little.

David | Oct. 11, 2024

The joy of iterative designs.

For SC730 RCBus-80pin Z80 CPU plus MMU Module Kit

This moves the MMU of the SC714 to the same module as the Z80 CPU itself, opening possibilities for multiboot when paired with the more robust, linear memory modules. This module represents the core of the SC794, and I've built mine out to be an ultimate, Z80 development workstation. I really love the versatility this particular unit provides!

David | Oct. 11, 2024

Compact prototyping.

For SC115 RCBus-40pin+ Breakout Module Kit for RC2014

I have the larger, 80-pin standard for this one, with its prototpying area; but I wanted something smaller for pure breadboarding work. This is perfect, it does not include pins 40 and 80, but those are optional user pins rarely connected to anything and I don't need them for this module's use cases.

I use this with my SC720 to reduce its footprint slightly.

David | Oct. 11, 2024

Ultimate Expandability!

For SC710 RCBus-80pin Backplane Kit

I use this for my SC794 build, and have yet to fill out the whole backplane, despite adding many modules to the system. This is the ultimate backplane for supporting advanced builds.

David | Aug. 31, 2024

Particularly useful for i2c testing.

For SC407 I2C Switches and Lights Module Kit

I've used this module with multiple devices both in and outside of the 8-bit computing space to test and verify i2c-connectivity and correctness. It's a very useful tool and can provide GPIOs and press button commands over i2c on any compatible platform.

This one is very affordable, very quick to build, and quite fun to put together (something about the lights and switches modules always make them particularly fun to solder together and I could not tell you why.)

Even if you aren't using SCC computers or other 8-bit designs, this little gadget is good to have on hand. It would be an excellent first-solder project kit for anyone new to it. This is true of most designs sold here, but this kit would be particularly accessible to children as it is quite simple and the switches hold themselves in pretty well during soldering.

I could imagine distributing these to a class alongside some arduino or adafruit project to teach kids how to both solder and then control the lights over i2c.

Robert | June 6, 2024

Very fun project to build and explore

For SC131 Pocket-sized Z180 RomWBW CP/M computer kit

I purchased this set about a week ago. Delivery was fast and it is a very fun project to assemble. It took me about 4 hours to put it together. After starting up, it turned out that there were already more than expected programs on the ROM.

The only thing that disappointed me a bit is that the SD card interface does not sit comfortably in the box, so in the end I mounted it without a socket, just soldered the pins directly to the PCB. Then it straightens and fits properly into the housing.

What I also wondered, there is no SD card included, is there a link somewhere where you can download an image with programs, otherwise I don't really understand the usefulness of the SD card.

This set is highly recommended, but not for the beginner.

Gary | May 30, 2024

Great all round experience

For SC131 Pocket-sized Z180 RomWBW CP/M computer kit

Kit was delivered promptly, comms were great and the instructions were straight forward and clear with checks as you progress to ensure everything is correct. I highly recommend, assembled and working in under 3 hours despite my very rusty soldering skills.

Marco | April 23, 2024

Great Project kit!

For SC114 RCBus-40pin Z80 SBC/Motherboard Kit

I purchased this Kit for a bit of nostalgia as my father and I put together a kit form Z80 computer in the garage in the early 80's (Dick Smith Super 80 kit in Australia). This kit brought back many fond memories of learning to solder properly and then programming my first BASIC programs. The kit was very easy to put together and worked first time, (unlike the earlier kit that had to go in for repair and mods to function :-) ). I am very happy with this product and am now going to buy more cards to add to its functionality and fun. Great job!!

Jonas | April 17, 2024

Easy kit to build, good instructions, great fun to play with

For SC131 Pocket-sized Z180 RomWBW CP/M computer kit

This review is a bit overdue, but better late than never.
I've ordered several kits from SC, but this was the first I built.
Kit is well packaged, parts easy to sort out and instructions excellent.
I ran into a problem with a cold solder, but managed to figure out the approximate whereabouts on the PCB and after that it was a breeze.
Kit works as advertised and I am really impressed at the !/$ factor.

Gerald | April 3, 2024

High quality SBC

For SC130 RCBus-40pin RomWBW CP/M Computer Kit

I chose this machine for a specific project that needed the extra CPU throughput and memory offered, over a Z80 platform, and my experience of the maker’s SC126. It did not disappoint.

The component quality and documentation are superb making it easy to recommend this machine to those looking for a small but potent SBC.

Shawn | April 2, 2024

What a great kit!

For SC792 RCBus-80pin Z180 RomWBW CP/M Computer Kit

Everything worked first time and is so well designed and documented it was a blast to assemble.

Thank you!

William | March 21, 2024

Exceeded expectations

For SC131 Pocket-sized Z180 RomWBW CP/M computer kit

This was an interesting kit to build. The documentation was great, and included various points to test to ensure a smooth build. The only issue I had was forming the LEDs, but that's due to my sausage fingers. I did have to remove the LEDs to re-form them. While doing so, I noticed there are tiny flange-like protrusions on the legs of the LEDs and that was my marker. As soon as I powered on the finished board, I had two reactions: one, it booted first time! Second was "dang this thing is fast!". I built it over the course of two after-work sessions. Like usual, take your time, take a break if necessary. Would recommend.

Matthew | Jan. 31, 2024

Brilliant little board - you need this !

For SC145 RCBus-40pin Compact Flash Kit for RC2014

I ordered this from USA and it arrived in a week.
It took about 45 mins to put it together on the bench - worked first time !
Bootstrapping up from hex files was a nice way to set this up. You format the CF card from the monitor, then transfer the base CPM to the disk images.
I had a few issues getting basic transfered - possibly because I had the text file open in notebook at the same time as I was trying to transfer it....
====File Length Error =====

My RC2014 :
SC108 V1.1: Z80 CPU, RAM, ROM, 7.37 mhz
SC112 V1.0- backplane (6 slots).
SC110 V1.1 - Serial Module (2 SIO port w CTC)
SC129 V2.0 - Digital I/O
SC145 - CF card

I used "CPM-B" package which seems to work.

Eric | Jan. 29, 2024

Great kit! No trouble with assembly!

For SC131 Pocket-sized Z180 RomWBW CP/M computer kit

The assembly went very smoothly using the online documentation that walks you through the process. The only thing I did differently was I desoldered the right angle headers from the SD card adapter and soldered new, straight header pins rather than bending the right-angle header pins straight and then trimming them.

I did not use an FTDI serial adapter with RTS and CTS pins. I used a generic CHM340-based USB to serial adapter. It wasn't a problem. I used PuTTY as my terminal software and was able to connect without issue.

I look forward to exploring the SC131.

Mike | Dec. 5, 2023

The kit worked first time.

For SC727 RCBus-80pin Real Time Clock Module Kit

This was easy to build thanks to clear and detailed documentation. It even include 4 output lines and 2 input lines that can be used for other purposes. The only problem I had was figuring out how to use RTC.COM program in CP/M to set the time. After some experimentation I discovered that 2 digits are needed for the day, month, year, hour, minutes , seconds and the day of the week. With the backup battery fitted, it is keeping good time - the date and time was bang on even after my CP/M system had been switched off for the last week.

David | Nov. 26, 2023

RomWBW!!!

For SC714 RCBus-80pin RomWBW Memory Module Kit

I noticed this module and upgraded one of my computers to it so I could work with RomWBW. Very happy with the purchase. As usual, the documentation is top-notch!

With six chips, six capacitors, and some headers, this was the quickest and easiest build in the whole sc700 ecosystem. I went from opening the box to booting in about 25 minutes.

David | Nov. 18, 2023

Another fun build!

For SC719 RCBus-80pin Digital I/O Module Kit

This is almost as fun to build as the digital i/o module for z50bus. For some reason that one was a bit more enjoyable, but this one was quite fun as well. It's nice to have these lights for basic diagnostics and arbitrary testing of I/O.

David | Nov. 12, 2023

Quick and simple build with endless versatility.

For SC136 RCBus-40pin Digital Input Kit for RC2014

Arbitrarily read in data from any external device? Yes please! These are a great way to practice with peripherals!

David | Nov. 12, 2023

Quick and simple build with endless versatility.

For SC135 RCBus-40pin Digital Output Kit for RC2014

Arbitrarily write data out to any external device? Yes please! These are a great way to practice with peripherals!

David | Nov. 11, 2023

More paged memory in such a compact space?!

For SC150 RCBus-40pin Paged RAM Module Kit for RC2014

As I mention in my paged rom review, I'm still blown away that we have pageable memory in such a compact board. It's really fascinating. I made a mistake on this order, too, and the seller helped me sort out that mistake, refunding the necessary funds, and got me exactly the parts I was trying to order.

Thanks for everything, Steve!

David | Nov. 11, 2023

Very cool build!

For SC139 RCBus-40pin Serial Module Kit for RC2014

This is an extremely fun board to put together. I was a little intimidated at first, but the way the resistors are hidden beneath the ACIA IC is really interesting and fun to watch come together.

This module has its own clock circuit! Complete overkill and very much appreciated. You can isolate the bus clock from the ACIA clock, even in this compact of a space.

It also has configurable addressing, so you can place it on any port you need. So many features packed into such a small space!

David | Nov. 11, 2023

The one you need!

For SC720 RCBus-80pin Z80 RomWBW CP/M Motherboard Kit

This system rounds out my collection of SCC computers and is the culmination of several years of collecting. I love this system's design, as it combines pretty much the best of the z80 and z180 computer designs for the rcbus. I have plenty of modules and extensions I can use with this board, and it will quickly become my primary 8-bit workstation.

I'll be buying more computer kits in the future as gifts for friends and family, but this is the last of the SCC computers I'll need. If you aren't sure which system to get, and you want something that covers all of the basics and then some, this system will keep you happy for years to come!

Update after a couple days working with it:

This thing really is a motherboard! That's the best descriptor for it. It feels like a complete computer and, whenever I get some kind of display driver and PS/2 driver hardware installed in it, it will be easily standalone. The three slots are typically sufficient for expansion, though I do have a larger expansion board that fits it nicely. It starts to get a little unwieldy, but it sure looks cool! It really looks its best when it's got two cards installed directly on the board.

The build was very fun, too, I forgot to mention. It was different from the modular builds, with everything being on one board. Take your time and work section-by-section. While the build itself was less work than a full modular system, it can be a little intimidating when you first open the box. In the end, this build flew by quickly and I had a blast doing it.

The low profile compared to the modular systems is a nice change, though it is a little harder to display effectively when not in use. Overall, having RomWBW on a true Z80 system has been quite enjoyable. I even got a C compiling running on it!

David | Nov. 11, 2023

Paged memory in such a compact space?!

For SC151 RCBus-40pin Paged ROM Module Kit for RC2014

How even? These compact little boards are doing things that I thought we needed a much larger board for. Studying this design will surely yield some fascinating new knowledge!

As with all these compact modules, the build is quick and easy; almost underwhelming after building so many of the larger systems. I still enjoyed it, though, it's a nice little relaxer to be able to solder each board up quickly during a break and slowly assemble the system.

David | Nov. 11, 2023

CP/M Anyone?

For SC145 RCBus-40pin Compact Flash Kit for RC2014

I've never been able to run CP/M on my RC2014 classic before. I've been retiring genuine rc2014 components in favor of SCC revisions lately, and this really brings my work station together. Having CP/M available on this low profile computer is both impressive and amazing.

I've been playing zmachine games on this system with the Vezza zmachine interpreter by Sijnstra since I finished building this module last night! The computer looks amazing with this module installed, and I really can't get over the design of the system as a whole.

You learn a lot putting these things together, and these low profile modules make a particularly good entry into the ecosystem.

David | Nov. 11, 2023

Light show central!

For SC404 I2C Digital I/O Module Kit (MCP23008)

I have found this module extraordinarily useful for testing, troubleshooting, and blinking lights in interesting ways over the years.

David | Nov. 10, 2023

Well documented, well designed, and easy to use!

For SC504 Compact Flash Interface Kit for Z50Bus

Another fun build. I like soldering on the battery holder near the end, it's quite enjoyable. Works reliably and easy to build. Another excellent design. The cutout to allow for access to the IDE breakout module is clever, an improvement over previous revisions. The use of box pins was also inspired, ensuring a good connection. Be sure to check the documentation as there is a small modification that needs to be made. It is simple and well documented, though.

David | Nov. 10, 2023

It knows the time!

For SC505 RTC & I2C Card Kit for Z50Bus

This module is great fun to build and use. My 8-bit systems keep the time, and can even timestamp files with the right configuration!

David | Nov. 10, 2023

i2c baybee!

For SC137 RCBus-40pin I2C Bus Master Kit for RC2014

To have i2c on my RC2014 is simply amazing. Next up SPI! I really love having access to the lineup of peripherals this board brings to the table. While I have yet to master its use, this module is an empowering and educational choice for any rc2014 owner!

David | Nov. 10, 2023

Fun, Quick, and useful.

For SC406 I2C Temperature Sensor Kit (TC74)

I plan to use this to seed random number generators. It's a pretty fun build for how small it is! Also useful for keeping an eye on temp around the system, particularly if you build inside of a case.

David | Nov. 10, 2023

Just cool!

For SC401 I2C Prototyping Module Kit

I use these to adapt adafruit i2c modules to my 8 bit computers. These are too cool for school and you probably need a few.

Randy | Nov. 10, 2023

First quality product

For SC147 RCBus-40pin Modular Backplane Kit for RC2014

Makes good low budget prototype platform. Connectors might not be the most ridgid but with card edge support they are quite reliable,

David | Nov. 10, 2023

Sleek, Cute, and Useful

For SC138 I2C Memory Card Kit

You need sneakernet on your 8-bits? This thing is pocket friendly, supports 64k if you have it (supplied with 32k) and looks slick both on its own and plugged in. Get one or three.

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