An acrylic case for Nanocounter

You may have already read my writeup about my first experience with laser cutting and the case that I produced for my reflow oven controller. If not then you can always get up to speed by clicking here. Creating a design for laser cutting involves laying out the different pieces into a...

A review of the Maximator Altera FPGA development board

I recently received a review sample of a rather nice looking FPGA development board called Maximator from the folks at Kamami.com. I’ve spent some time evaluating it and this post is a detailed review of the board. The development kit arrives in a nice, well padded box. What’s in...

A custom enclosure for the Android bluetooth reflow controller

It’s a good nine or ten months now since I published my design for a reflow oven controller that uses an Android app for display and control. I knew at the time that I would need an enclosure for this controller and not just because of the obvious hazards of having exposed mains...

Nanocounter is an accurate frequency counter using an FPGA, STM32 and a bluetooth android app

Here we have a good example of how a requirement for a simple tool spirals out of control and spawns a project that takes months to complete and ends up dwarfing the project that it was originally expected to facilitate. You see, some time ago I was fiddling around with a project, something to do with data logging, probably, I’ve actually forgotten what I was up to. Said project would have used an MCU to acquire and timestamp data over an extended period of time and I quickly realised that the oscillators and quartz crystals used to generate the clock tree inside an MCU are not accurate enough to track wall-clock time over extended...

USB HID device development on the STM32 F042

The STM23 F042 series is ST’s cheapest route into USB device programming for the F0 series of STM32 microcontrollers. In hacker-friendly units of one you can buy an STM32F042F6P6 (48Mhz, 32Kb flash, 6Kb SRAM, TSSOP20) for £1.47 at Farnell today. STM32F042 TSSOP20 0.65mm pitch...

A development board for the STM32F042 TSSOP package

It’s been a while since I posted a new article, a delay at least partly due to me herniating a disc in my neck which left me completely unable to look downwards for any length of time and as you’ll know all too well you can’t work on circuit boards without peering down at...

Filtering the 5V USB power supply line Jul24

Filtering the 5V USB power supply line

I’m currently working on a new project that contains sensitive analogue components and have rediscovered what many before me already know, that is that the VUSB 5V line that comes out from your computer’s USB hub is noisy. In fact I was surprised at just how noisy it is....

An android reflow controller that anyone can build Jul12

An android reflow controller that anyone can build

The story so far Welcome to the never ending saga of Andy and his reflow controllers. About a year ago I published a project writeup showing how I built a PID-based reflow controller. It featured a 640×360 graphical LCD from the Sony U5 Vivaz mobile phone and was all-surface mount. It...