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Process automation: building a process controller
Not a lot of people know this, but I brew my own beer as a hobby; and I’m not talking about the murky coloured astringent tasting dodgy brews of yesteryear. The beer I brew is probably best described...
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Process automation: relays and triacs
In my previous article I discussed how I intended to convert an old PC into a controller that I could use to automate the temperature control required to ferment and conditional beer. If you haven’t...
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Process automation: temperature sensing
My previous article documented how I designed and built a PCB that hosted three relays and a triac that could be mounted inside a PC case and connected up via the USB bus for host control using simple...
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Process automation: another RTD sensor board
In a previous article I described the design and build of a temperature sensor board based around a high precision LTC2986 part from Linear Technology. The project was successful so you may be...
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Directly driving a 7-segment LED display with the STM32
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...
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How to use a 4k TV as a computer monitor
I like big, high resolution monitors. The bigger the better. I can’t understand how so many young developers and engineers seem to be content to peer into the tiny screens on their Macbooks that offer...
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A development board for an STM32G081 MCU
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...
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A USB microphone for online meetings
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...
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Fixing the USB microphone mute button click
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...
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Bluetooth Low Energy and the STM32WB55 MCU
I’m a subscriber to ST’s regular email newsletter and though most of it isn’t interesting to me I did notice that in one of the recent editions they were promoting their wireless range of STM32-based...
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