What did you buy today? Post your latest purchase!

[deadlylover]

42kWh solar battery system installed just as the sun came down (AUD9000 or USD6400, payback is about 4-5 years with our usage, very comfortable within the 10y warranty). Factory SoC about 50% that's worth $7 woohoo. 

Oh now I have guilt-free CRT monitor usage, or I can do long term experiments like li-ion cycle tests. It was too wasteful having test equipment on overnight.

[bsw_m]

New Old Stock 100MOhm standard resistor with zero alpha/beta coefficients.

[gamalot]

Pulled the trigger on a Siglent SDG1022X Plus on Taobao, all in with shipping, payment charges, and GST it was around AUD 480.

Delivered this morning. 

[JimKnopf]

Today one more Kickstarter project arrived. A Crysound Acoustic Camera. Nice device. A 64 microphone array Camera that let you spot the source of a sound, it's loudness and frequency.

The only downside, i'm a linux user and not only my PC but also my phone runs on linux (SailfishOS). There is only an Android and Apple App available. I can run some Android Apps on my SailfishOS phone. But it's limited if you need additional hardware access to BT/Wifi. The Android App did not start on my phone.
I had to write a python App to use the device native in my lab environment. Works pretty well. I did some calibrations with a SDG6022X and a speaker. Very accurate. I love it.

[Renate]

That sounds interesting.
Have you tried it on crickets in a field?
How about bats?

[JimKnopf]

@Renate Not tested yet. But a nice idea came up when i read your post. I added geo tagging and a OSM map in my SailfishOS phone app. Now, if i find a cricket in a field, or something else interesting, i can remember where i found it. The camera itself seems to have no GPS inside (didn't open it). But the json file i found on the http server inside has data fields for geo-coordinates.

I can't remote control the camera or get a live stream. But i can combine the image data laying on the http server (x_1.jpg color image, x_0.jpg sound overlay with magic number as png instead of jpg, .doa, .wav .json and dateTime). Now, i can add geo-coordinate and OSM from the phone during assembling. So very limited functionallity in my App, but ok for my use case.