Licky's Column

What are the common faults of RF modules in wireless communication systems?

by Licky Li

What are the common faults of RF modules in wireless communication systems?

The common faults of RF module in wireless communication system include: 1. Weak or no signal: It may be caused by poor antenna connection, antenna...

17 steps to summarize the entire PCB design process

by Licky Li

17 steps to summarize the entire PCB design process

PCB design is a complex process that typically involves many steps. Here is a summary of the key steps in the PCB design process: Gather requirem...

Design a battery-powered STM32 board with USB

by Licky Li

Design a battery-powered STM32 board with USB

Here is a basic design of a battery-powered STM32 board with USB: STM32 Microcontroller: Select an appropriate STM32 microcontroller that suits y...

Understand radio frequency and microwave

by Licky Li

Understand radio frequency and microwave

Radio frequency, abbreviated as RF (Radio Frequency), mainly refers to the emitted radio waves and is mostly used in wireless communications. Micr...

The usage method of the chip burner

by Licky Li

The usage method of the chip burner

The steps to use a chip burner are roughly as follows: 1. Prepare the burner. Make sure the model of the burner supports the chip model to be burn...

What are the features and advantages of Wearing flexible PCBS？

by Licky Li

What are the features and advantages of Wearing flexible PCBS？

In today's ever-changing science and technology, wearing flexible PCB is gradually becoming the new darling of the industry. So, what are its uniqu...

SPI and QSPI: What are the similarities and differences？

by Licky Li

SPI and QSPI: What are the similarities and differences？

First of all, let's understand what SPI and QSPI are. SPI, full name Serial Peripheral Interface, is a synchronous serial interface used for commu...

Common 5 types of relays

by Licky Li

Common 5 types of relays

1. Electromagnetic Relay: Electromagnetic relays are one of the most common and classic types of relays. It includes a coil, and when current pass...

How to choose a suitable radio frequency power amplifier?

by Licky Li

How to choose a suitable radio frequency power amplifier?

Determine the application scenario and requirements: First, it is necessary to clarify the application scenario and requirements, such as the fre...

What are the common problems in using power MOSFET circuits?

by Licky Li

What are the common problems in using power MOSFET circuits?

Common problems in using power MOSFET circuits include: 1.Conduction loss: the energy loss when the MOSFET is conducting. 2.Switching loss: the ene...

IoT dan Computer Vision

by Licky Li

IoT dan Computer Vision

IoT (Internet of Things) and Computer Vision are two different but interrelated fields. IoT refers to connecting various devices and objects to th...

Differences between CPU, MPU, MCU, SOC

by Licky Li

Differences between CPU, MPU, MCU, SOC

CPU CPU (Central Processing Unit) is the computing core and control core of a computer. The CPU is composed of an arithmetic unit, a controller, re...