# esp32 s2 LED, button driver > ESP32-S2-Kaluga-1 development board LED, button driver. ##led driver - Hardware uses GPIO45 to control a WS2812 lamp beadRefer to the official routine for controlling W
The major RF performances of Traveling Wave Tubes (TWTs) are determined by the Slow-wave Structure (SWS), which is customarily characterized by the coldparameters: phase velocity (or dispersion curve)
For example, the AT070TN92 LCD data sheet says: "backlight 14-leds". Does the "LCD" here refer to the number of LEDs? How are these LCDs connected? Some are marked: 3 in series 6 or other indicators.
40-200GHz Silicon Germanium Bipolar Circuit Production Process and ApplicationZhang Zhe, American JZ Semiconductor1. Introduction In the past 10 years, silicon germanium bipolar integrated circuits (S
##**Table of Contents** [TOCM] ## 1. Treasure Hunting There are always many novel gadgets in the house of Lao Wang next door, which will be gone if you are not careful. This time I was lucky and caugh