In my previous article I documented the design and build process of my USB microphone based around an STM32F446 MCU. If you haven’t already read it then it’s probably worth catching up now before reading the rest of this article so that you have the necessary context. The...
A USB microphone for online meetings
posted by Andy
Here in the UK the new reality of working in the IT business over the past year has been that we’re all at home working remotely over virtual desktop connections and for someone engaged in software development this is a setup that works well. Having to commute 90 minutes each way into...
A development board for an STM32G081 MCU
posted by Andy
I’ve been an avid user of ST’s F0 series ever since it was launched. The 48MHz Cortex M0 is almost always the perfect MCU for every project that I tend to build and it’s so easy to program and debug that, for me, it’s the default answer to ‘which MCU should I use...
Directly driving a 7-segment LED display with the STM32
posted by Andy
Seven segment LEDs are an extremely cost effective way to add a large, bright and very readable numeric display to your project. Displays similar to the one pictured above can be had for as little as 50 cents each on ebay in the common heights of 0.56″, 0.36″ and 0.28″. You...
Nanocounter is an accurate frequency counter using an FPGA, STM32 and a bluetooth android app
posted by Andy
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
posted by Andy
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
posted by Andy
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...
From zero to a C++ STM32 development environment
posted by Andy
It’s been a while since I wrote an article about my stm32plus C++ library for the STM32 series of MCUs so I thought I’d combine a long overdue catchup with a step-by-step tutorial that will show you how to set up a completely free and unrestricted STM32 development environment from...
