Promotional Space (Non-Business) LCD technology has been thriving for over 50 years. In the past decade, the wide-view LCD technology route has completely diverged into two categories: vertically aligned soft screens and horizontally aligned hard screens. PSVA, HVA (CSOT), and UV2A (Sharp) belong to the soft screen VA technology; while horizontally aligned hard screen technologies … Read more
Experimental Scene 1 Introduction Recently, I have been deeply researching the “Do It” experiments in the new textbook section on “Electromagnetic Induction” to explore the relationship between the drop height of a magnet and the maximum value of the induced current in a coil. When using the maximum reading of a DC meter as the … Read more
Recently, we conducted an electromagnetic oscillation experiment using Phyphox, ESP32, and ADS1115. The results were very satisfactory, and we witnessed the oscillation of current in the LC oscillation circuit composed of the coil and capacitor. Following the diagram, we connected the ESP32 and ADS1115 using DuPont wires. The wiring was quite complex due to the … Read more
Using Phyphox, Bluetooth, and ESP32, many circuit experiments have been conducted, but they have been limited to the realm of direct current because the development board cannot directly collect alternating current signals. Previously, experiments on Lenz’s law were conducted using Phyphox, Bluetooth, and ESP32 by first preloading a constant direct current in the coil, and … Read more