Raspberry pi data logging sd card image updated

To help people getting started using raspberry pi to log data with my SDI-12 USB adapters, I’ve been offering ready-to-go MicroSD cards with raspberry pi system image. You can pop it into your raspberry pi and get started with all the necessary tools installed, including the python logging script. Every few months, I update the image so you get the most recent operating system and the python logging script. This time I updated the image in late December. I just recently tested it on a raspberry pi 3A+ model and it works. I guess it’s no surprise. My image works on 3B and 3B+, Zero and ZeroW. The 3A+ has the same processor as 3B+ so it worked right away. I remember when Zero came out, the image I had didn’t work on it since it has a different processor than 3B (latest model then). I had to put the image in a 3B and run updates. After that it worked. It’s been a while since the raspberry pi folks designed the 3B model. I wonder if they are ready to release a model 4B later this year. I am hoping to see better performance but also hoping to see programmatic ways to dial back the performance for battery operation so the pi can enter a low-power mode while collecting data and spring back to full-throttle if it needs to crunch data (program controls power mode) or handle a user remote login (user select power mode). Anyway, if you’re stuck with an sd card having a working older image, all you have to do is to update:

[code language=”bash”]
sudo apt-get update
sudo apt-get upgrade
[/code]

In case you need more details regarding updating your raspberry pi, here is the official post:

https://www.raspberrypi.org/documentation/raspbian/updating.md