Jun 012018
 
New RasPiO Portsplus 3 fits all 40-pin Pi - Launch offer FREE + shipping

Shortly after the Raspberry Pi 3B+ came out, I realised that the PoE pins prevent the RasPiO Portsplus from fitting on the GPIO header. Here you go: https://t.co/Vq2HP9zLW2. I had to Dremel the end off to accommodate the PoE pins. I'm not sure if @RasPiTV has plans to amend it. — Raspberry Pi (@Raspberry_Pi) March 28, 2018 So I redesigned it so it now fits on ALL 40-pin Raspberry Pis. The video tells the story… What is Portsplus 3? It’s a small PCB which can slip over the header of a Raspberry Pi so that […more…]

May 182018
 
Dremel Table Saw Trimming RasPiO GPIO Rulers

In HackSpace Magazine issue 5, I wrote an article on how to “Make a Dremel Table Saw” This week I took delivery of a new batch of RasPiO GPIO Rulers and in QC checking these, I found that they needed a little bit more processing before release. There was a little ‘spike’ in one corner of pretty much all of them, so this needed removing before these could be shipped. I decided this would be an ideal opportunity to make a video of the Dremel Table Saw in action, so here it is. Enjoy… If […more…]

Mar 162018
 
Raspberry Pi 3B Plus Family Photo Update March 2018

One of my other little launch week traditions for a new Pi launch is to update the Pi Family Photo. This time we’ve got three new members since a year ago when it was last updated for the Pi Zero W launch. The aim of doing this is to maintain a record of pretty much all of the versions of the Raspberry Pi which could be purchased by the public. I do have some other rare ones which I don’t include because it seems a bit like gloating. Perhaps one day I’ll do a blog […more…]

Mar 152018
 
How Much Power Does Raspberry Pi 3B+ Use? Power Measurements

Since the original Pi came out I’ve been interested in how much power it consumes. It’s become something of a launch week tradition to publish a new chart and some data. So much so that several people ask for it on launch day. This time the first was within 7 minutes of launch, which is a new record… Did you test the energy consumption? — El Datavizzardo (@datavizzard) March 14, 2018 Why? The main reason I do this is that, if you are running a Pi on batteries, you need to be able to know […more…]

Mar 142018
 
New Raspberry Pi model 3B+ 1.4 GHz, 330Mbit Ethernet, 802.11ac, PoE

It’s Pi day (if you do dates in the illogical MM/DD/YY format) so Raspberry Pi is releasing a new version of the Pi 3B. It’s called the 3B+, which is logical because it has more to offer than the 3B and is also in keeping with previous Pi naming conventions. It contains several incremental improvements, but taken together they provide a substantial upgrade in performance with a faster processor, addition of 5GHz wifi and 330Mbit ethernet and PoE. More detail further down. Here’s the new board… New Chip BCM2837B0 1.4GHz Probably the most significant change […more…]

Feb 262018
 
How to tap a thread in acrylic Perspex, Lucite, Plexiglass using your cordless drill driver

I recently bought a laser cutter (running on a Pi) and started working with acrylic (Perspex). I’ve sawn, routed and drilled Perspex before. It machines beautifully as long as you’re not too ‘greedy’ with your cuts (and if you’re too greedy, it cracks). In exploring the material, I wanted to investigate thread tapping as I’d heard it was possible and it opens up new design options. So I watched a few videos about thread tapping. Some people use a CNC machine on an industrial scale, but others use a small hand tapping set in the […more…]

Feb 192018
 
Run a K40 Laser Cutter from Your Raspberry Pi with K40 Whisperer

I bought a Chinese K40-style laser cutter about three weeks ago and I’ve been spending quite a bit of time playing with it learning how best to use it. It’s an eminently hackable design, and while mine could cut 3mm acrylic OK ‘straight out of the box’, there are many things that can be done to make it better, easier to use and more user-friendly. I’ve had great fun doing a whole host of upgrades and improvements to it, but that’s not what I’m focusing on today. Last week, Les Pounder published a blog article […more…]

Feb 122018
 
Using Wemos D1 mini to control a brushless motor with ESC and servo signals

I’ve recently become interested in making “machines” of various sorts. I was sorting through some of my RC (radio control) plane “stash” the other day and came across various brushless motors and electronic speed controllers (ESC) like these. In RC, Brushless ESCs are usually connected to a radio receiver which generates servo control pulses. So this morning I thought it would be fun to try and get a Wemos D1 mini controlling a brushless motor. I’ve done similar before. I can remember, back in the dark ages of 2013, using a Guzunty Pi to generate […more…]

Jan 082018
 
Cutting Female Pin Headers with a Hacked Together Dremel Jig

I have an occasional need for 13-way female headers. Actually they are a component in both the RasPiO 7-seg kit and the RasPiO Breakout. But 13-way headers are not as easy to get hold of as other sizes, e.g. 15-way, unless you want to order eleventy-billion of them imported directly from China. If you only want a couple of hundred or less, it’s better to buy 15-way and cut them down to size. It’s certainly quicker if that’s what you already have in stock. It’s rather an unpleasant job, but to do it well with […more…]

Nov 282017
 
Make a Rain Alert System with Raspberry Pi

You’ve been left at home in charge of the laundry. It’s already washed and hanging out to dry on the line. But you were warned – on pain of death – to bring it in if it starts to rain. The trouble is, you’re totally into whatever it is you’re coding right now and you won’t even notice if it rains. You’ll be toast if it rains and the laundry gets wet. So which is it to be? Code or laundry? That was your choice – until now! Let’s Make a Rain Alert System We’re […more…]