Extreme Kits

The bottom left of the image shows a Pico RomWBW computer in a brown wooden case. The output from it is shown on the screen in the background. It is just about to boot into CP/M.

New from me: Building a Pico RomWBW

z80.timholyoake.uk/building-a-p...

Happy new year.

Over the Christmas period, I was VERY busy.

Many product lines were sold out, Thankyou

I'm slowly restocking, and the first back in stock is the Theremin kit...

extkits.co.uk/product/lumi...

Make one of your New Year's Resolutions to visit The National Museum of Computing in 2026 :-)

Bernard the fly on an extreme kits business card

This is Bernard, or Ber for short. Tomorrow is his birthday. To celebrate we are continuing our Black Fly day sale.

For FlyBer Monday.

Enter "Black Fly day" at the checkout for 10% off all our products. Last day tomorrow.

extkits.co.uk

A small Van de Graff with a fly at the base and a shiny metal dome.

Grab a mini Van De Graff kit In our "Black fly day" sale" 10% off, if you use BLACK FLY DAY code at the checkout.

We don't do #BlackFriday until Dec 1st.

extkits.co.uk/product/van-...

Small box with silk screened front panel rows of buttons, leds and switches extremekits and RomWBW logos. In a polished wooden case, with a huge black fly on top. Because Black fly day is really a thing, well its as much of a thing as black Friday is in the uk.

Pico RomWBW computer kits back in stock. You can now order with a wooden case as a single item, saving you £££s. Plus (minus ?) the 10% off Black fly day offer (use the code BLACK FLY DAY) at the checkout.

ExtKits doesn't do #BlackFriday.

extkits.co.uk/product/pico...

Extreme kits logo and an acrylic black fly

If you've been following Extreme kits for a while you will realise that we don't do black Friday. But, to celebrate one of our software bugs becoming sentient, this year we will be doing "BLACK FLY DAY"

10% off your order at extkits.co.uk if you use "BLACK FLY DAY" at the checkout, until 1st Dec.

Small desktop battery powered Wimshurst machine. sparking between two silver balls on wire above the machine. Two acrylic disks spinning on an acrylic chassis below. against a white graph paper checked background.

Mini Wimshurst kits back in stock

30000V of whirly disk based #science on your desktop, but still safe for kids.

extkits.co.uk/product/mini...

Available here extkits.co.uk/product/rp23...

#RetroComputing

RP2350 RomWBW Bus kit. 10 leds, 8 switches and an OLED display on two blue PCB's with a 40way connector.

a Neo pixel driver. Running emulated Z80 CPM via #ROMWBW from an onboard RP2350

AND it can be directly plugged into a RC2014 backplane.

#retrocomputing

RP2350 RomWBW Bus kit. 10 leds, 8 switches and an OLED display on two blue PCB's with a 40way connector.

RomWBW Bus kits now available.

All the features of the Pico2 RomWBW kit PLUS

an OLED display emulating a 2 line LCD and a full #RC2014 IO Bus, so you can run RC2014 peripherals. Not that you really need to as you have SD disks, Speech synth, 8 bit LEDs / switches on the front panel.

RP2350 RomWBW Bus kit. 10 leds, 8 switches and an OLED display on two blue PCB's with a 40way connector.

RomWBW Bus kits now available.

All the features of the Pico2 RomWBW kit PLUS

an OLED display emulating a 2 line LCD and a full #RC2014 IO Bus, so you can run RC2014 peripherals. Not that you really need to as you have SD disks, Speech synth, 8 bit LEDs / switches on the front panel.

Nano Probe - Logic probe / Oscilloscope

Nano Probe - Logic probe / Oscilloscope
The Nano Probe is a combined logic probe and miniature oscil... Read More
#kits #makers #stem #science

Solenoid 24V 350mA Push Pull

Solenoid 24V 350mA Push Pull

Read More
#kits #makers #stem #science

YouTube video by MeArm Robotics First Prototype Robot Arm - MeArm Robotics

11 years ago...

youtube.com/shorts/hM8G2...

RC2014 Assembly — The National Museum of Computing This Event has been created In collaboration with RC2014 and Peter Onion, hosted at the TNMOC. Witness the versatility of the RC2014 and similar Z80 kits: A deep dive into community-driven 8-bit proje...

Ext kits are going to the RC2014 Assembly event at the National Museum of computing on Saturday.

We will be taking our RC2040 and Pico RomWBW kits to sell.

www.tnmoc.org/events/2025/... for tickets.

Thanks ill take a look, i think its picking up on the meta some how.

Its for our antipodean market...

Strange thing is it was the right way up last time i posted it.

Cypher of the Monk's Clock

Cypher of the Monk's Clock
A digital clock kit that has a OLED display of the time based on the Cyph... Read More
#kits #makers #stem #science

RC2014 Assembly — The National Museum of Computing This Event has been created In collaboration with RC2014 and Peter Onion, hosted at the TNMOC. Witness the versatility of the RC2014 and similar Z80 kits: A deep dive into community-driven 8-bit proje...

There's still time to book your place at the forthcoming RC2014 event at The National Museum of Computing. It's a chance to meet other RC2014 builders and users, or to learn about RC2014 and similar systems before deciding to buy and build your first one. www.tnmoc.org/events/2025/...

Poster for RC2014 Assembly, 20th September National Museum of computing and the RC2014 logo. More details at https://rc2014.co.uk/3855/rc2014-assembly-v1-0/

Next week I'll be packing for RC2014 Assembly.

For all things RC2014 related.

rc2014.co.uk/3855/rc2014-... #retrocomputing

Cypher of the Monk's Clock

Cypher of the Monk's Clock
A digital clock kit that has a OLED display of the time based on the Cyph... Read More
#kits #makers #stem #science

10 x Morse oscillator practice kits - with 5x 5M cables

10 x Morse oscillator practice kits - with 5x 5M cables
A class Pack of 10 Simple Morse Practice osc... Read More
#kits #makers #stem #science

Nano Probe - Logic probe / Oscilloscope

Nano Probe - Logic probe / Oscilloscope
The Nano Probe is a combined logic probe and miniature oscil... Read More
#kits #makers #stem #science

Thanks Tim :)

Micro SD Card Module - Z80 Kits The Pi Pico powered Micro SD Card Module is a drop-in replacement for the Compact Flash Module and will help to future-proof your CP/M running RC2014

The SD module z80kits.com/shop/micro-s... is a direct consequence of 8 bit CF cards becoming rare and my work on the RC2040, allowing a easy SD card interface to the RC2014 bus.

And I have permission from Both Spencer and Wayne to mention Rc2014 and RomWBW for my products, and both are aware of what I'm doing.

Much as I agree the the RC2014 bus is a big part of the RC2014, so is the collected software, interfaces and peripheral drivers.

There is, internally :)...

And the SD card module for RC2014.

Alas even the pico2 isnt fast enough or has enough pins to replicate the whole bus.

RC2040 - Retro emulated Z80 CP/M computer kit - Extreme Kits The RC2040 is a PI PICO z80 emulated RC2014 kit with CP/M-80 and support for ROMWBW, FUZIX and RUN CPM - Speech synthesis, parallel port and RGB Leds

A comment about the RC2040 extkits.co.uk/product/rc20...

"I plugged it in - it works like a champ. Thank you for designing, selling, and supporting this great kit. It must be a labor of love, because you can't be charging enough to cover your labor. Thanks again!"

and Yes it is, and No I don't

Morse oscillator practice kit x2 with 5M cable

Morse oscillator practice kit x2 with 5M cable
2 Simple Morse Practice test kits for soldering pract... Read More
#kits #makers #stem #science