Posts - Electronics

Total posts: 8

How to open Gerber files in AutoCAD with free open source tools

02 April, 2015 - 2 min read

Here is a method for how you can import a Gerber RS-274X file into AutoCAD. There are many commercial software solutions to perform this, but this is how you can do it for free using open source tools! You’ll need to install and configure (if needed) the following software. gerbv – this is used to… Read more

GLCD Library Support for PIC24H with ST7565R / ST7565P / PCD8544 (Nokia 3310 5510) LCDs

31 December, 2013 - 3 min read

My graphic LCD library (glcd on GitHub) now supports PIC24H with the ST7565R, ST7565P and PCD8544 LCD controllers. The code has been tested with the Newhaven display NHD-C12864A1Z-FSW-FBW-HTT and NHD-C12832A1Z-FSW-FBW-3V3. I used a Microstick II development board to test these, with demo code… Read more

USB datalogging on the Turnigy Accucel 6 Hobby Charger

16 August, 2013 - 6 min read

After owning this great little hobby charger for some time, I wanted to use the data logging capabilities of the Turnigy Accucel-6 unit. In particular, the aim is the plot  some discharge curves of some particular batteries. A quick search on Google found some articles, but a lot of conflicting… Read more

Arduino Library for DF Robot 16×2 LCD Keypad Shield

24 February, 2013 - 2 min read

A few years ago, I purchased one of these 16×2 LCD and Keypad Arduino shields. There are quite a few of them around (including some clones?), but they are similar to this one from DF Robot: I think I bought this one from eBay a few years ago, but nonetheless, the different ones around  are all… Read more

Custom avrdude with auto DTR reset and custom baud rate for Arduino boards

14 February, 2013 - 2 min read

I’ve been working on a project where I have been using a ATmega2560 with a custom bootloader (based on the Arduino Mega bootloader using the stk500v2 protocol). As I was using a 8MHz crystal, it was best that I used a baud rate of 38400 for programming. By default with avrdude, when using the… Read more

GLCD 0.4 Released – ST7565R and NT75451 support, Blueboard LPC11U37 demo

14 July, 2012 - 1 min read

August 2019 update: All demo code is available on Github project page Version 0.4 of GLCD Graphic LCD Library has been released. It includes added support for: ST7565R LCD controller with SPI serial interface with AVR8 implementation. This is used in Newhaven Display model NHD-C12864WC-FSW-FBW-3V3-M… Read more

Making custom fonts for GLCD library

08 July, 2012 - 3 min read

Update: I’ve been working on a little Qt based tool called glcd-utils which does makes creating fonts and bitmaps on GLCDs a lot easier than the process below. It is open source, but no binaries available or even much documentation. You can visit the Github page here. Otherwise, back to the tutorial… Read more

Measuring flash durations of speedlight and studio lighting and strobes

19 January, 2012 - 6 min read

It’s been a while since I’ve written a technical article. But today I’m going to talk about flash durations. After a bit of wild searching on the internet, I couldn’t really find any good resources showing actual real-world measurements of flash durations of speedlights, especially t.1 measurements… Read more

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