tl;dr; I have not yet managed it… but if you read on you will see where I am currently up to, and where I think I can go. I am reading the University of Toronto’s “Self-Driving Cars Specialisation“, one of the tutors is Paul Newman from Oxbotica: Be at the […]
Geeky
302 posts
If you do any amount of design with 3D printers, sooner or later you will find your self using bearings between two bits to help them move; normally you will reach for a “skateboard bearing” or a 608ZZ, however if you need a size that is not a 608ZZ the […]
I just realised that in Part 1 and Part 2 that I didnt discuse how to go from Datasheet to Fusion 360, While I am not going to cover how to do the drawing in great detail, there are plenty of sites which tell you how to make drawings in […]
Following on from From Datasheet to KiCad Component – Part One, I had got as far as making the footprint in KiCad the Footprint Editor, The layers I have built it out of look like this: Now we have the footprint finished for Type C (I also did Type A […]
Recently the BBC wrote an article online with the headline “Does 5G pose health risks?”, the first section was: The 5G mobile network has been switched on in some UK cities and has led to questions about whether the new technology poses health risks. So what are the concerns, and […]
One of the simpler inputs to add to a microcontroller is a switch, I have chosen to use the ones I have added to KiCad for my Swarmbot. Most people who add microswitches normaly use something like the following circuit on a Digital in Pin. When the Switch is open […]
I found some cheap small microswitches on AliExpress, working backwards I found the same switch part numbers, and subsequently found a Switch Data sheet for the same size part. I use a mix of Fusion 360 and KiCAD for design, so I CADDed up the three flavours of microswitches, using […]
This is version one of a set of Left-hand Switches made for MiniBoyGeek’s Duplo Railway Yes there is already a version two waiting to print, with additional check rails and re-designed mechanism: You can find it on ThingiVerse here
I found the ‘Picktor’ Pick and Place head for retrofitting on a 3D printer on Thingiverse (GitHub) As designed it uses a Nema 17 stepper motor, however I suspect that will be too big for my design. I got 3 x Nema 14 stepper motors from an old RepRap Huxley, […]
I have started designing assembles in Fusion 360 using T-Slot, a lot of head scratching on how to make use of it at arbitrary lengths in my designs… I started by making a 20mm length of T-Slot as its own model in Fusion 360; This is model has all of […]
Using a LED and a 560 Ω in most breadboard projects means that you end up with four pins connected for two components, soldering them up like this makes them much easer to handle.
In the UK if you want to place some thing on the market you need to ensure that it has a CE mark and has a DoC (Declaration of Conformity), there are a number of things that need to be done. Looking through the list, we have CE, RoHS, WEEE, […]
…and other lies adults who should know better spread! On Facebook a friend of mine has joined the crazy Electrosmog people; I was first made aware of it when she posted outrage at an article in a small paper with the headline “Glastonbury Festival 2019 to be first ever music […]
We went to Hack Green Secret Nuclear Bunker, to be fair it is badly named… its got far too well signposted; the entire place is a maze or exhibit rooms, and displays showing an over view of life during its time as a bunker.
This week we will be having a play with a 74HC595, the Data sheet lists it as an 8-bit serial-in, serial or parallel-out shift register with output latches; 3-state.” In other words, you can use it to control 8 outputs at a time while only taking up a few pins […]
Following on from last week where we drove a motor in one direction with the help of a simple amplifier, this week we are going to have a go at driving a servo. Those of you who read older posts in my blog will know I have done this before […]
A fair while ago Swindon Makerspace started a group project called LogoBot, a cheap, expendable and extendable easy to build robot for playing with. Even longer ago I bought a MiroBot from kick-starter, it had lived in a box, and parts of it had got damaged. Tamarisk showed me and […]
I have started putting these on Github so you can also follow along. In Weeks 2, and 3 we were driving LEDs directly from the Arduino, While the Arduino can drive a LED directly from a pin, if you want to power something that draws more power like a motor, […]
I picked up a 37 in 1 box sensor kit from china, it includes basic components and sensors, and is compatible with Arduino and Raspberry Pi The Package Included (their description): Small passive buzzer module KY-006 2-color LED module KY-011 Hit sensor module KY-031 Vibration switch module KY-002 Photo resistor […]
I have now been to Bletchley Park twice. In the gift shop they have a Build your own Enigma-E Kit: The Enigma machine was the German cipher machine used to encrypt their WW2 communications and systematically cracked by the Bletchley Park Codebreakers. This highly detailed replica design gives you the […]
Most of the stuff you will need to do the electronic projects I do on this site can be got by going to Amazon (I have affiliate links), I know I have mentioned the Oomlout Starter Kit for Arduino, However I fear that this is discontinued 🙁 The Oomlout Starter […]
Following on from week 1 and week 2, we will be continuing our way through Oomlout’s Arduino Guide, at this point however we hit a snag with using iCircuit. Annoyingly iCircuit is unable to deal with arrays. An array is a cunning way of holding multiple variables inside a single […]
Following on from Week 1 and talking about faking it with an Arduino, we will use UnoArduSim.exe and iCircuit to model the first few circuits from the Oomlout.com’s “Experimenter’s Guide for Arduino” (Full kit was available from here). Oomlout have made the ARDX-circuit-sheets available separately to their guide PDF. Circuit […]
If you want to learn Arduino programming, but don’t always have access to a box of physical hardware, there are a number of Arduino Simulators available, however one of the best ones I have found to use, is also free. UnoArduSim Arduino is a great platform, but If you’re trying […]
After the print yesterday, I wanted to know what the 100% sized eyes would look like. Having also thought a bit more; I can think of a better way of constructing the head, so that is back to CAD for a re-design. The 100% eyes seem to have printed only […]
A while back, I went on a Geek Walk to Bletchley Park, This time Tamarisk’s Uni Computing Society went for a Social. We didn’t catch up with them, but we went as a group anyway 🙂 Last time I thought it would be cool to make an Enigma Machine, this […]
On Boxing day, Tamarisk, MiniBoyGeek, and Granny went for a look round Warwick Castle, We also saw the Mill and Hydroelectricity plant on the river Avon
In traditional fashion, A challenge I am likely to fail… however anything that risks me reading more books than normal… So lets try Linz’s The Bookworm’s 2019 reading challenge, this 60 book challenge can be done in parallel with attempt ¿Four? of the 100+ Reading Challenge. Level 1: Book of […]
A while ago I picked up these buttons for my Dr Who’s K-9 robot from AliExpress, Hobby Components have similar available online, The ones I purchased are SPDT with a 24 V DC incandescent bulb in them, regardless of the button colour they are all illuminated with a white incandescent […]