Hello everyone, I am XXX. Today I bring you a detailed analysis of microcontroller communication protocols, including mainstream protocols such as UART, I2C, and SPI. These protocols are the bridge for data exchange between microcontrollers and other devices, and mastering them is crucial for embedded system development. Let’s break them down one by one, and … Read more
Source: https://blog.csdn.net/an520 UART, SPI, and I2C are very common serial communication methods in embedded development. The underlying principles of these communications are not difficult, but many beginners struggle to learn them. Today, I will share some common low-level data transmission principles of communication. UART Serial Port UART: Universal Asynchronous Receiver-Transmitter. UART is the most common … Read more
This experiment uses Arduino to directly drive the 1602 LCD to display text. The 1602 LCD is widely used in applications. The original 1602 LCD used the HD44780 controller, and now various manufacturers’ 1602 modules basically use compatible ICs, so their characteristics are generally consistent.1602LCD main technical parameters: Display capacity is 16×2 characters; Chip operating … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us Angular velocity sensors and acceleration sensors are common inertial sensors, often used to measure the rotation and linear motion of objects. The angular velocity sensor (Gyroscope) is used to measure the rotational speed or angular velocity of an object around three axes (X, Y, Z). … Read more
Figure 3 PCB Wiring 4) Circuit Related Explanation As shown in Figure 1, R56 and R57 are the pull-up resistors on the I2C bus. The interrupt output and clock output of the PCF8563 are both open-drain outputs, so external pull-up resistors are also needed, such as R58 and R59 in Figure 1. If these two … Read more
Follow “Technical Training” focused on automation education for 14 years UART, I2C, RS485… These communication methods are widely used, but their explanations can be ambiguous. Therefore, I feel it is necessary to organize them for clarification and differentiation. The article is a bit long, so I suggest saving it for later reference when needed. UART … Read more
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
Source: Sensor Technology A bus is a common communication line for transmitting information between various functional components of a computer. It consists of a bundle of wires and can be classified into data bus, address bus, and control bus based on the type of information transmitted. The data bus is used to transmit data, the … 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
UART, I2C, RS485… Although these communication methods are commonly used, their explanations can be ambiguous. I felt it necessary to organize them to consolidate and distinguish the concepts. The article is a bit lengthy, so I suggest saving it for future reference when needed. UART Universal Asynchronous Receiver-Transmitter The UART port refers to a physical … Read more