So I've had the project in-place and operating for about 2 months now. After fixing the wiring issues I had early on, it's continued to work quite well. For the last few weeks it's shown a steady (but also rather sudden) increase in weight, which I HOPED was accurate but couldn't be sure of until recently when we opened up the hive to check on things. The first box was getting close to full, which anecdotally matches up with the weight sensor readings. Added a second box, which hopefully they will fill up in the coming months!

While the strain gauges do still have a bit of noise, it's manageable for my needs. I've found that simply using a 12-hour rolling average smooths out the noise quite well. While it'd be cool to see more subtle changes in weight as the bees come and go throughout the day, tracking the weight longer term is the primary goal of things anyway. I also subtract out the known weights of the boxes, so that as I add new ones it doesn't skew the readings. Additionally, I've found using a daily average and plotting over the last month to be the most useful way of digesting the data: