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.


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



Good service
Monday, 13 August 2018  |  L

Thank you for swift, trouble free delivery.

Great time saver...needs a small tweak!
Monday, 25 June 2018  |  Ian

Just received this and used it to program up my latest batch of boards. Seems to take a little while to recognise the chip on each board but then programs them quickly. Very convenient! Only niggle I've found is that the LED indicators are FAR too bright, they actually hurt my eyes and leave me "flash blind". I'm going to have to find something to put over them or locate their related resistor and replace it with one of a higher value. Otherwise, brilliant tool!

Video transmitter for rc
Friday, 11 May 2018  |  Christopher

I used this cap on my video transmitter to clean up the picture of electrical noise from the motor and esc of my fixed wing model aircraft. Also the OSD was flickering badly and it cured it of this too. Simply soldered it across the battery terminals to soak up any power spikes. Worked great. Good quality.

Thursday, 3 May 2018  |  George

Easy for to assemble with assistance from YouTube video- my wife loved it.

0.25W Carbon Film Resistor (Pack of 20)
Wednesday, 25 April 2018  |  John

As expected

Break Away Header 8 Pin
Wednesday, 25 April 2018  |  John

As expected - correctly spaced, right length and quick delivery.

JST Jumper 2 wire Assembly
Thursday, 19 April 2018  |  Anthony

No pitch size was given in the review. I hoped they were 0.1" pitch, but they appear to be 2mm. As they had to fit a socket, no good. Socket pins were straight type.

Good service, Good product
Wednesday, 11 April 2018  |  Colin

I'm total novice to Ardruino and this device seemed ideal for a project. Just been playing with it so far but seems a useful bit of kit and well made. Great service from Proto-Pic and wouldn't hesitate to use them again.

In a lack of a better review title
Tuesday, 3 April 2018  |  Maciej

Had no problems with that, maybe because I had small tip on the solder iron. Works as it supposed to do

atx power supply straight connector
Tuesday, 3 April 2018  |  Michael

Very good product and received very quickly and packaged was excellent.

Free Technical Support
Fast Delivery Options
Customer Loyalty Scheme

Proto-PIC - UK Distributor of Sparkfun, Arduino, BBC Micro Bit, Adafruit Electronic ComponentsProto-PIC ; UK Distributor of Sparkfun, Arduino, Adafruit, BBC Micro Bit electrical components