June 2013 – Unit Engineering

Electromagnetic Shielding

Part I: Selecting the Proper Shielding Materials At first, we need to introduce a physics concept Skin Depth, before discussing the shielding materials. The Skin Depth δ is defined as the depth below the surface of the conductor at which the current density has fallen to 1/e (about 0.37) of its surface current density[2]. It is […]

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1.8 Inch TFT Screen for Raspberry Pi

Hardware Notes / neilhao

This is a short Application Note about how to use ST7735R Controller based TFT screen with RaspberryPi Universal Expansion Board and RaspberryPi. More information about the screen can be found in the list of my Peripheral Boards. Part I: Hardware Connect RaspberryPi, RaspberryPi Universal Expansion Board and the ST7735R Controller based TFT screen as Figure 1. Figure

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