#WeAreNotWaiting thanks to #xDrip – Components Required

NOTE: xDrip used to be called DexDrip so you might find some references to the old name in this article.

 

If you don’t know what a xDrip device is take a look at this page.

partially made up xDripSince the release of my first comment about xDrip on Sunday morning my Facebook and Twitter notifications have gone crazy: ‘like’s everywhere, comments everywhere, questions everywhere. At stages I’ve been overwhelmed with my phone buzzing with notifications ten to the dozen and me not getting the time to answer the questions. This just goes to prove the level of interest in a set up like this.

By far the biggest questions I have been asked are:
    1. can I really build this myself as I’ve never soldered before?
    2. what components do I need?
    3. where can I buy these components?

The answer to 1 is easy: Yes, you probably can, I had never soldered anything electrical before starting this project, in fact I had to buy a soldering iron/kit just for this.

The rest of this blog should answer questions 2 and 3.

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PLEASE READ THIS ADVISORY

a) Never make a medical decision based on a reading from any CGM device, whether certified (eg Dexcom) or not (eg xDrip). Always perform a fingerstick blood glucose check first.
b) xDrip is a DIY product, decide for yourself if you wish to use it. Build it, test it, test it again and use (if you want to) in conjunction with a certified receiver.
c) The fact that it is working for us does not mean it’s right for you.
d) Never build a xDrip for anyone else and never sell one.
e) The blogs are provided for information only. We are not endorsing it for use by others, nor promoting it, just merely publishing our information as well as answering questions from previous blog articles.

Components you’ll need to buy, borrow or steal
(Okay, don’t steal, that’s not good.)
Thank you to Johan Lorant from the USA for information about the components he bought.

HM10 v CC41UPDATE WARNING
It seems there’s two types of chip being passed of as HM10, the second actually being a CC41 and it appears these will not work, although some do.
Be careful which one you get, check with the supplier before you order one but bear in mind that that supplier will only know what their supplier told them. Best thing is to get a proper photo of them beforehand and make sure it’s a HM10 as per the picture on the right.
BLE face upBluetooth Low Energy 4.0 BLE Tranceiver HM-10 Module
From eBay seller AudioSpectrumAnalyzers I’ve got a working HM10 (see warning above), in fact he even has ‘xdrip’ in the items listing title. Cost: under £12.
The first one I bought was off eBay for £15.29 from Aura Communications.
WIXEL face downThe heart of the xDrip device is the WIXEL chip.
I got mine – along with lots of stuff – from Hobby Electronics.
Cost: £13.80
In the USA, one place to get it from is from Jaycon Systems:
JS-3237 Wixel Programmable USB Wireless Module

AdaFruit LiPo charger and batteryAdaFruit LiPo (Lithium-ion Polymer battery and MicroUSB charger.
I got the charger from eBay for £7.70 each, I bought two. An alternative is Pimoroni at £7.
I got the battery from eBay too, 1200mAh ones, although note that Stephen (the designer of xDrip) only uses a 500mAh battery.
In the USA one place to get from is Jaycon Systems
JS-1965 Micro-USB Lipo Charger (MCP73831)
JS-3418 3.7 Volt Rechargeable Lithium Battery (850 mAh)
jumper-wires-ff-6in-500x500You’ll need some wires to link it all together. I bought these and cut them in half as I’m going to build another xDrip.
Cost: £2
In the USA one place to get these from is Jaycon Systems
JS-3958 Flat Ribbon Cable – 16 Wire (15 Ft) 1
SolderingkitHaving never soldered before I was in need of a few things, all of which I found in this kit. Note that everything works well apart from the solder, buy some good stuff elsewhere.
The ‘magic hands’ and magnifying glass were a Godsend, I couldn’t have done without them.
digital-multimeter-basic-500x500I wouldn’t be without my multimeter when dealing with electrical stuff but you don’t actually need one. I used one for the first xDrip I built but not for the 2nd or 3rd which I use as spares in demos.
Cost: £10 or so, from any DIY or electronic hobbyist store, such as HobbyTronics.
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