The Anti-Pyramid Scheme Network released on July 6:This article introduces the fundamental knowledge of the Internet of Things, what it is, and common IoT protocols.Why have participants in IoT investment projects been severely deceived in recent years? Where have the core members of those promotional IoT project investment platforms gone? Not going to discuss that … Read more
1 Introduction After conducting the experiment “Plotting the P-R Characteristic Curve of the Power Supply,” using the existing circuit and making a few modifications to the experimental source code, the microcontroller successfully performed the experiment “Plotting the Relationship Curve between Power Supply Output Voltage and External Resistance.” 2 Circuit Setup for the Experiment Connect a … Read more
Recently, we studied the relationship between the current in various parts of a voltage divider circuit and the movement of the sliding contact, drawing the relationship graph with the help of Geogebra. Now, we use Phyphox for experimental exploration to see if the theory matches the practice. Maker Jiaozuo Early Research Using Geogebra to explore … Read more
What? A calculator can run ChatGPT now? There is a video as proof; the program not only answered the author’s questions but also gave the classic ChatGPT response—42—when asked about “the meaning of life”. Moreover, it looks just like an ordinary calculator; the secret lies within the machine. Of course, the difficulty is not small. … 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
1 Introduction After conducting the “Plotting the Power Supply Volt-Ampere Characteristic Curve” experiment, the microcontroller successfully replicated Teacher Mei’s experiment on “Plotting the Relationship Curve Between Power Output and External Resistance” using the existing circuit with only minor modifications to the source code. 2 Circuit Experiment Setup Connect a 10-ohm fixed resistor in series with … Read more
Recently, the microcontroller obtained a coil and conducted a coil induction experiment using ESP32 and Phyphox. Due to the small inductance of the coil, the induction phenomenon was not very obvious, but the technical solution has been validated. If a coil with more turns and an iron core can be obtained, the experimental effect should … Read more
Overall Scheme Design Overall Structure Design The wheel-leg robot (LeTian-robot2) utilizes a linkage mechanism (see Figure 1), with the linkage controlled by servos. By controlling the servos on both sides, the overall tilt and lift of the body can be achieved. The feet are directly driven by a 4010 brushless motor without any reduction gear. … Read more
1. Circuit Completion Plan In the previous chapter, we identified the circuit modules required for the smart faucet. Next, we will determine how these circuit modules connect to form a complete “system”. Since our system structure is simple and the components are relatively few, it can be roughly divided into three parts: • Power supply … Read more
STM32: Released by STMicroelectronics on June 11, 2007, it is a 32-bit microcontroller. GD32: Released by GigaDevice in 2013, it closely imitates STM32 in chip development, configuration, and naming. In fact, the GPIO pins are pin-to-pin compatible with STM32, meaning you can use GD32 without altering the PCB. Sometimes, you can run STM32 source code … Read more