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 learned 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:                                                                Our registered address is:

RelChron Limited                                                               RelChron Limited
Unit 17, Kirkcaldy Enterprise Centre                               C/O Harley Hepburn
Myregormie Place                                                              28 Townsend Place
Mitchelston Industrial Estate                                           Kirkcaldy
Kirkcaldy                                                                              KY1 1HB


Great system
Sunday, 23 June 2019  |  Rich

This is a well made and well thought out unit.

Wednesday, 13 March 2019  |  David

I recently discovered proto-pic and was delighted in their service.
I will probably be back for more bits for my next project.

Are 5 ring pins really reversed?
Thursday, 14 February 2019  |  William

I ordered six of these for an after school class I'm teaching at my daughter's school. The first thing I notice weird about the microixel board is when you plug the Microbit board into the microixel the five "ring pins" labeled 0, 1, 2, 3V and GND are in reverse order on the microixel board, and I don't know why this is. Are the pins just mis-labeled? Or are there hidden traces (perhaps behind the connector) that route the proper signals to the pins as they are labeled? It has me mystified. I guess I will give it a try and see what I find. For now, my tentative rating is 3.

Great addition to the home lab
Monday, 4 February 2019  |  Peter

Perfect for mounting those various SOT23 devices that need to be tested on a breadboard.

Just what I needed
Tuesday, 27 November 2018  |  Pete

I asked Drew at proto-pic if they did a cr2032 breakout for bread board as i bought the USB and barrel jack breakout boards, he told me he didnt, but would design adn get one made, and he sent me one to try. I am making a datalogger for a friend, and it will be running on a cr2032, I needed to test the running time on a breadboard before getting a PCB made and this maked this easy.

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