Last week, we drew a Raspberry Pi Pico for everyone, and today we have brought some experimental routines. This includes several basic experiments, along with code and results. ▌01 PI Pico Experiment Board The Raspberry Pi Pico Development Board Basic Testing[1] provides basic setup for the PI Pico development board. By installing the Thonny development … Read more
The application of push-pull circuits is very extensive, such as the push-pull mode output of microcontrollers, PWM controllers output, bridge driver circuits, etc. The English term for push-pull is: Push-Pull, which literally means push-pull. Therefore, push-pull circuits are also called push-pull type circuits. The essence of push-pull circuits is power amplification, which enhances the driving … Read more
Problem Statement Hello, Teacher Zhuo. I observed a strange phenomenon while testing my new motor driver with the oscilloscope: 1. When I set the oscilloscope to a time base on the same order of magnitude as the PWM period, I could measure a standard PWM waveform. However, when I increased the time base, I noticed … Read more
❝ Introduction: This article presents a solution to implement the main functions of the 555 timer based on the DAC53701. The DAC53701 has significant advantages in signal precision. 01 DAC Replacing 555 1. Question about 555 Circuit Two days ago, I saw a student asking how to improve the precision of the square wave signal … Read more
A collection of animated diagrams illustrating signal transmission in communication protocols helps us understand the principles of signal transmission. 1. SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2. I²C Transmission ▲ Figure 2.1 I2C Bus and Addressing Method 3. UART Transmission … Read more
First, buy a Bluetooth module and download a Bluetooth serial debugging assistant on your phone, which is equivalent to the UART serial communication of the microcontroller. Use BUFF to obtain the received data. Here, we only need to focus on one issue, which is testing the encoding. If the APP sends 0xFF, (the APP Bluetooth … Read more
These animated GIFs displaying signal waveforms in electronic systems help us understand the mechanisms of signal transmission. 1 SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2 I²C Transmission ▲ Figure 1.2.1 I2C Bus and Addressing Method 3 UART Transmission ▲ Figure … Read more
Search on WeChat Technical Training The following animations displaying signal waveforms in electronic systems help us understand the principles of transmission. Sharing with everyone. 1. SPI Transmission ▲ Figure 1 SPI Output Transmission ▲ Figure 2 SPI Data Transmission (2) ▲ Figure 3 SPI Timing Signal 2. I2C Transmission ▲ Figure 4 I2C Bus and … Read more
Abstract: Aiming at the current situation of the electronic control system of medium and small power AC mine hoists, a dual PWM frequency conversion speed regulation system based on DSP is proposed. This article elaborates on the hardware and software design of the system in detail, designing the main hardware circuits and part of the … Read more
This article will explain how to DIY a biped robot. The hardware system of the biped robot mainly includes the microcontroller minimum system circuit, PWM circuit, indicator light circuit, independent key circuit, and power supply circuit. The main design requirements for this biped robot circuit are as follows: · The microcontroller minimum system can output … Read more