When the CAN bus malfunctions or data transmission is abnormal, various strange fault phenomena often occur, such as abnormal dashboard displays, inability to start the vehicle, failure to turn off after starting, decreased vehicle performance, and loss of certain electronic control system functions. This is because relevant data or information is transmitted through the CAN … 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
Recently, I used the ESP32 and Phyphox to depict the capacitor’s charging current image and discovered a strange flat top phenomenon in the current image. This flat top phenomenon does not match the shape of the charging current image in practice, making it difficult to provide a reasonable explanation to the students. This issue must … Read more
With the development of computer technology, railway interlocking has been upgraded, leading to the emergence of computer interlocking. The difference between computer interlocking devices and the 6502 electrical interlocking is the addition of a driver acquisition circuit, which delegates the interlocking computation tasks to the computer. Regarding the driver circuit, the figure shows the station … Read more
Performance Parameters① Main control chip: ATmega328P② Digital input/output pins: 14③ PWM pins: 6④ Storage (code space): 32KB⑤ RAM (runtime storage): 2KB; EEPROM (power-off storage): 1KB⑥ Crystal oscillator: 16MHzOnline Simulation: https://wokwi.com/ Arduino Uno Tutorial ①: Installing Arduino IDE Arduino Uno Tutorial ②: Development Board and LED Test Arduino Uno Tutorial ③: Button Control LED, with Exercises … Read more