Notes I took when I read a bunch of LoRa related papers…

SGTL5000 is a low-power stereo codec with headphone amplifier from NXP. Its ultra-low-power with very high performance makes it suitable for portable products as well as low-power IoT devices. Surprisingly, I failed to find existing footprint for it online.

Some packages incorporates an exposed thermal pad designed to be attached directly to an external heatsink. The thermal pad must be soldered directly to the PCB. After soldering, the PCB can be used as a heatsink. In addition, through the use of thermal vias, the thermal pad can be attached directly to the appropriate copper plane for the device, or alternatively, can be attached to a speial heatsink structure designed into the PCB. Thermal vias optimize the heat transfer from the integrated circuit (IC).

We have developed a prototype implementation in python that uses OpenCV to identify the Flow Rate of a stream from a video by using the Lucas-Kanade Optical Flow detection technique iteratively.

I²C Communication between PowerDués

Finite volume method can be used on all differential equations that can be written in the divergence form.