A friend of mine, Piotr Klin, will attempt breaking the cycling hour record. Here’s how I helped him nail down the start time by measuring air density on the velodrome.
This time porting Python code to MicroPython wasn’t only about fixing syntax and API. It turns out that for the e-paper display library that uses relatively big amounts of data at once, you have to sweat a bit more to get satisfactory results.
It’s been a while since I deployed the WiPy-powered air quality monitor on my balcony. I have since replaced the microcontroller with a LoPy4 to enable LoRa connectivity, and I switched to a custom-made PCB.
I recently got a thermal printer and adapted its Python library to MicroPython. It took only a couple of hours, but let me explain the rationale behind purchasing a thermal printer.
Air quality has been a heated topic recently here in Poland. It all started a couple of years ago in Kraków, which is arguably the