Chris Greening

Sep 16, 2024 | atomic14.substack.com | Chris Greening

Robin Reiter from Robins Tools was kind enough to send me Pixel Pump - and it’s great!It came really well packaged. And what’s really nice is that there is no plastic in the packaging, it’s all FSC-Certified cardboard. What I really like about this set of tools is the SMD magazines - you can load these up with your components and then easily pick and place.

Jun 20, 2024 | bizzbuzz.news | Pok Man Leung |Chris Greening

Studying archaea's diverse metabolic pathways, like methane production and hydrogen-forming fermentation, can inform strategies to mitigate greenhouse gas emissions Three-quarters of all matter in the universe is made up of hydrogen. The young Earth was also rich in hydrogen, thanks to fierce geological and volcanic activity. Just as stars burn hydrogen to produce heat and light through nuclear reactions, life emerged by extracting energy from this simple molecule via chemical reactions.

Jun 18, 2024 | deccanherald.com | Pok Man Leung |Chris Greening

By Pok Man Leung and Chris Greening for The ConversationSydney: Three-quarters of all matter in the universe is made up of hydrogen. The young Earth was also rich in hydrogen, thanks to fierce geological and volcanic activity. Just as stars burn hydrogen to produce heat and light through nuclear reactions, life emerged by extracting energy from this simple molecule via chemical reactions. Some of these early life forms were archaea: an enigmatic third form of life only discovered in the 1970s.

Jan 19, 2024 | cosmosmagazine.com | Chris Greening

When I look into the microbial world, I imagine it’s a bit like an astronomer looking into the universe. It’s equally as wondrous, daunting and humbling when you realise that in every single gram of soil, there’s billions of microbes with all sorts of different forms and functions. It’s even more mind-boggling how much they influence our world and how they’ve shaped our own evolution. Anything is possible for microbes.

Jan 5, 2024 | atomic14.substack.com | Chris Greening

So, there’s no DAC on the ESP32-S3. You would think this would be a bit of a downer if if you want to get audio out and use an analog amplifier. But it’s actually surprisingly easy to output Pulse Density Modulated audio using Sigma Delta Modulation on the ESP32 and you can recover the audio signal by low pass filtering it - an RC filter can be sufficient for this. And that’s what I’m using in the video. Though the Espressif docs do suggest a much better active filter.