[Skip to Content]

Random projects and posts - page 9

01 DECEMBER 2012

Magnetic PCB holders

While building pcbs on our manual pick and place machine we have been looking at various options to hold the PCB boards still while placing the components but without having to use complex clamps to hold the boards in place. To...

25 NOVEMBER 2012

Google Talk and Google Chrome Windows 8 Bug Fix

Since installing Windows 8 earlier this month I haven’t been able to use Google Chrome as the default browser for links when opening from Google Talk. Even when the Defaults control panel was showing Google Chrome...

20 NOVEMBER 2012

New Raspberry Pi Analogue to Digital converter

Following feedback and supply problems with the 16 bit ADC chip we had been using on our popular ADC Pi board which we sell on www.abelectronics.co.uk we have been working on a new version of the ADC board and we have now...

13 NOVEMBER 2012

Panasonic Pick and Place Feeder Hack

To replace the diy surface mount component feeder used on the pick and place part 1 & pick and place part 2 posts, I was able to source 11 x 8mm Panasonic Ratchet Type Component Feeders (part no 10488BD059, specification...

28 OCTOBER 2012

Diy Manual Pick and Place Machine part 2

Following from the previous pick and place part 1 post we have completed the initial build on our semi automatic pick and place machine. The air / vacuum supply nozzle was made on the lathe using a section of 10mm steel...

19 OCTOBER 2012

Diy Manual Pick and Place Machine part 1

After discovering the cost of buying a ready made manual Pick & Place Machine was over £5,000 and an automatic one well over £20,000 we decided to try to make our own manual pick and place system with a motorised...

02 OCTOBER 2012

T962 Infrared Reflow Oven Vent Hack

We purchased a T-962 desktop reflow oven from China on eBay a few weeks ago and found the results from the oven to be very poor compared to the specifications on the area which it could process. We found that it would only...

21 SEPTEMBER 2012

Surface Mount Components Dispenser

While building the new ADC Pi circuit boards we found dealing with the surface mount resistors and capacitors to be time consuming when taking them from plastic trays as many of the components would be upside down and in...

19 SEPTEMBER 2012

RF Shielding on a Mains Inverter

The mains inverter we have for our solar system generates a lot of RF interference on our ham radio transceivers and also across the entire HF spectrum. The inverter body has plastic ends and very little filtering for the...

14 SEPTEMBER 2012

ADC Pi Raspberry Pi I2C Analog to Digital Converter boards available to buy online

Update April 2015 Since the launch of this first ADC board for the Raspberry Pi it has been replaced with the ADC Pi models and we have also mde variants of the ADC board with a ADC Differential Pi which is a 8...

05 SEPTEMBER 2012

Axminster SIEG Super X1 Micro Mill Z Axis Ballscrew Upgrade

Following the ballscrew upgrade of the X and Y axis of our Micro Mill in 2010 we decided it was time to try to improve the accuracy of the Z axis on the mill which had been using a basic lead-screw which had a lot of excessive...

19 AUGUST 2012

Cheap Sources of Components

One major factor which affects many electronics hobbyists is the cost of purchasing components and associated fixing hardware. Very cheap sources for used parts which are normally still OK to use for your own projects are...

10 AUGUST 2012

XBee Central Heating Control via Raspberry Pi

XBee Central Heating Control via Raspberry Pi Following from the previous post detailing the plans to build an XBee & Raspberry Pi central heating controller we have now built the control board and written the Microchip...

08 AUGUST 2012

Raspberry Pi central heating controller

Now the solar monitoring and logging system is working we are going to build the wireless remote control for the hot water and central heating boiler and controller/programmer. We currently have a variant of an ACL Drayton...

01 AUGUST 2012

12v iPad Charger

Following the 4th Apple iPad charger failing and not wanting to spent even more money with Apple to replace them we decided to try to make 12v powered chargers to make use of the excess PV power we now have during the daytime...

25 JULY 2012

The Hackaday Effect

Today one of my projects was added to the popular hacking site Hack a Day for the Raspberry Pi solar logging project. Normally the blog receives on average 30-40 visitors and around 80 page views per hour. Within minutes...

24 JULY 2012

Raspberry Pi Solar Data Logger

The Raspberry Pi solar data logger project is now live and is the latest version of our previous data logging systems using Arduino and Android + IOIO board projects. The data is used on a custom reporting website on home.briandorey.com...

20 JULY 2012

Raspberry Pi Fan Controller and Interface

To make it easier to connect the various cables to the new Raspberry Pi ADC board we decided to make a second PCB with header pins to connect to the ADC board and take these to screw terminals. Also we wanted to have a temperature...

14 JULY 2012

Raspberry Pi I2C Microchip MCP3428 ADC Reading

The code sample below shows how to read the ADC values from the MCP3428 16-Bit, Multi-Channel Analog-to-Digital Converter with I2C™ Interface and On-Board Reference by Microchip via I2C on the Raspberry Pi using Python. The...

11 JULY 2012

Raspberry Pi I2C Analog to Digital Converter

The original plan for the Analog-to-Digital Converter was to use the Dallas 1-Wire system and use the DS2450 1-Wire Quad A/D Converter which was advertised as being a 16 bit device but after buying two of the chips which...

10 JULY 2012

New Raspberry Pi I2C interface project

Currently working on a new I/O board add-on for the Raspberry PI computer. The PCB will have 8 16bit A/D inputs which are connected via buffers to the I2C port on the Raspberry PI GPIO port.  There will also be a built...


1 2 3 4 5 6 7 8 9 10 11 12 13