Proto-PIC - Electronic Component Supplier, based in UK is owned and operated by RelChron Limited which was founded in 2006.

We started the company to develop a product for the Oil Industry, a HydroStatic Pressure Testing System, which is still in wide use today.

During the development of this system, we accrued a whole pile of electronic goodies that we decided to sell on ebay to recoup some of the money we had spent. The items sold so fast we realised that there was a real need in the UK to buy electronics at good prices. We maxed out our credit cards and bought up lots of parts we thought there would be a need for in the UK and was born.

We buy electronics for the UK Maker Community in bulk from reputable suppliers only, generally from the USA. Buying in bulk allows us to be able to take care of all the Import tasks and paying Duty so the products can be available to customers in the UK on a super quick turnaround.

Our favorite supplier has to be Sparkfun Electronics in the US. They have been with us right from the beginning. Some of their components were in the original revision of our Pressure Testing System and they were the first guys we bought our first big (huge) order from to stock the place up. We sell every item that Sparkfun sell, unless its illegal to sell in the UK (some radio products are banned as they interfere with our wavelengths over here). Even if we are sold out of the item, we can get parts from them within 48 hours - if we place the order on Monday afternoon - it will generally be here Wednesday morning - that's pretty awesome!.

We knew that we had the ability and love of the products to be able to create some of our own. Our first in-house developed product was the Proto-PIC Arduino Starter Kit. We have sold over 10,000 of these to date. We now have a full range of products that are our own concept and design.

Our tech support team are fluent in Arduino C and can help with any aspect of design, code or assembly of your project.

The BBC Micro:bit is an ARM based embedded system developed by the BBC for use in education. It is aimed at getting kids into electronics - something very close to our hearts here - and can be programmed via a web interface. It has LEDs mounted on the board so kids can make scrolling messages or simple graphics. They can even connect up other things like temperature sensors using the croc clip rings on the board. We were really excited when we saw this and have lots of BBC micro:bit goodies in stock.

One of the things we learnt fairly quickly when we started out is that Packing efficiency is key. If you are selling fairly high value, fairly fragile parts - you want to pack them fast but protect them well. I was always concerned about ordering parts from websites and paying top money for shipping only for them to arrive having been dropped into a 7p Jiffy bag. We wanted to do something different. So we did our research and we have sent all our smaller orders in plastic boxes, since about 2010. This costs us a bit more, but we would be happier knowing that your items are extremely well protected during transit and just generally look nicer when you receive them. The boxes are meant to be reused by the customer, they can be used for storage - or can even be drilled and cut to make a nice enclosure. - We got such a great response from our boxes we now sell them as a stock item on the website.

Buying things online is meant to be a happy time, every day is like Christmas! So with that in mind, we now send all of our orders out with a bag of free Haribo. This stems from the fact that I love Haribo, so I assume everyone does too - and also it creates some nice extra padding inside the box!


Our company registration number is SC298119 and our VAT registration number is 880518413

Our postal address is: 

RelChron Limited
Unit 17, Kirkcaldy Enterprise Centre
Myregormie Place
Mitchelston Industrial Estate




Our registered address is:


RelChron Limited

C/O Harley Hepburn

28 Townsend Place



Tuesday, 21 March 2017  |  David

Very nice and very compact. Keeps your micro bit safe as a secondary feature, but the ability to have a battery powered project without the cables is a major win

Parallax (Futaba S148) Continuous Rotation Servo #900-00008
Monday, 20 March 2017  |  Alan

Just the job. Arrived on the due day, excellent service.

Micro Servo HD-1900A
Monday, 20 March 2017  |  Alan

Just the job. Arrived on the day stated

Relatively cheap
Thursday, 16 March 2017  |  Alastair

I've been using unregulated irons for through-hole hobby work my whole life but decided finally to upgrade to a decent thermostatic one for SMD. In the past I've always bought Antex but this iron is currently about 70 cheaper than the equivalent Antex device. I've sometimes found that the tips become loose on Antex irons so I was pleased to see that the Hakko ones are secured with a screw thread. In general it seems very well made, although I've only had it a week so I cannot comment yet on the device's longevity.

My only reservation with buying a Japanese iron like this right now is that UK political / trade uncertainty might make it trickier to obtain replacement tips in the medium term, so I'll probably buy a few in advance.

Excellent module
Tuesday, 14 March 2017  |  IAN

Works perfectly, powering LED Christmas lights using thrown away (from the recycling bins) AA batteries.

12v vacuum pump
Sunday, 12 March 2017  |  Geoff

Have left a review before as have been buying these for some years now have proved totally reliable in service as long as a good filter is fitted on the suction side otherwise they will clog with particles and stop working motor seems bullet proof have not had any burn out and I am using about 20 of them

SPDT mini switch
Wednesday, 8 March 2017  |  Michael

This is a nice little switch for small circuit work and performed well.

Just the job
Tuesday, 28 February 2017  |  Alan

Arrived earlier than expected and is just right for the job.

Excellent leads
Monday, 27 February 2017  |  Neil

These are very well made with strong alligator clips and piggy-back banana plugs. Well worth the low price.

Excellent leads
Monday, 27 February 2017  |  Neil

I should have had these years ago, what an asset! They are very well made and the banana plugs are piggy-back.
And cheap as well.

Proto-PIC - UK Distributor of Sparkfun, Arduino, Adafruit, BBC Micro Bit electronic componentsProto-PIC ; UK Distributor of Sparkfun, Arduino, Adafruit, BBC Micro Bit electronic components