Point 1: Usage of Modals Can, May, Must in Declarative Sentences: 1. Usage of can: (1) Indicates ability, permission, and possibility. When indicating ability, it is generally translated as “can” or “be able to,” meaning possessing a skill, especially an innate ability. For example: She can swim fast, but I can’t. (她能游得很快，但我不能。) I can see … Read more
In English learning, we often encounter the word can. But is can only used to mean “to be able to”? Today, we will summarize all the uses of the word can. 1. As a Modal Verb 1. To express ability or possibility: can, be able to I can swim very fast. 2. To express knowledge … Read more
Usage of Can and Could 1. Indicating Ability (1) To express current ability, use can: My sister can drive. My sister can drive. Everyone here can speak English. Everyone here can speak English. (2) To express future ability, usually use the future tense of be able to instead of can or could: I’ll be able … Read more
In today’s “Learn Sentences and Vocabulary”, we will learn a simple sentence structure: Can …? Can means “can/able to”. In a declarative sentence, it indicates “who can …”, while in an interrogative sentence, it is used to ask “who can …?” Sentence Pattern: Can …？ can/able to …? Example Sentences: 1. He can fly a … Read more
Three Uses of Can 1. Indicates Ability “Can” I can swim. 2. Indicates Possibility “May” He can’t be at home. 3. Indicates Permission “May” Can you open the door? Three Uses of Could 1. Indicates Ability “Could”, the Past Tense of Can I could swim when I was five. 2. Indicates Permission “Could”, More Polite … Read more
CAN is a powerful communication standard used to support communication between various sensors, machines, or controllers. The CAN interface is widely used in industrial automation, home automation, and automotive applications due to its robustness and effective handling of bus contention issues. The early CAN 2.0 can provide an 8-byte payload, with a recommended data rate … Read more
Indicates ability or possibility, meaning “can” or “be able to”. I can run fast. I can run fast. Can you call back tomorrow? Can you call back tomorrow? 2. Indicates knowledge of how to do something, meaning “know how to”. She can speak Spanish. She can speak Spanish. Can he cook? Can he cook? 3. … Read more
Source: Electric Control Knowledge Transporter 1. Introduction The CAN bus was developed by the German company BOSCH, with a maximum speed of up to 1Mbps. The fault tolerance of CAN is particularly strong, and the CAN controller has a powerful error detection and handling mechanism built-in. Additionally, unlike traditional networks (such as USB or Ethernet), … Read more
Examples of CAN Applications Bus Topology Diagram The CAN controller determines the bus level based on the potential difference on the two wires. The bus level is divided into dominant and recessive levels, one of which must be present. The sender sends messages to the receiver by changing the bus level. Connection diagram of CAN … Read more
