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PID control refers to a control method used for applications such as temperature control. After setting a target value, it reads the current value with a sensor and automatically adjusts to get closer to the target value. For example, consider the issues with traditional on-off operation. A familiar example is the bimetallic electric kotatsu. In the on-off operation of the electric kotatsu, the temperature rises to 100% output until it reaches the target temperature, and then it drops to 0% when it exceeds the set temperature, causing the temperature to decrease. However, this often leads to overshooting or undershooting from the target temperature, resulting in a control outcome that oscillates and does not achieve ideal temperature regulation. While the simplicity of the structure allows for a cost-effective setup, these issues also exist. PID control can solve these problems. ▶ For those who want to learn more about "the mechanism and role of PID control," please refer to the [column article]. ▶ For those who want to learn more about "the function of gain (parameters)," please refer to [this document].

Around us, there are many electronic devices such as televisions, smartphones, computers, audio equipment, and home appliances that are actively used. Many of these devices have features like lights that turn on when powered, operation buttons, and displays that provide information about the device's status in text form. This document will explain the following representative display devices: ■ 7-segment display ■ LCD (Liquid Crystal Display) ■ LED panel *For more details, please download the PDF or feel free to contact us.

At Nippo, we have numerous development achievements in the measurement field, including temperature sensors, temperature controllers, and humidity controllers. We can provide proposals tailored to our customers' needs regarding the measurement and control of temperature and humidity. This document introduces the detailed mechanisms of the following sensors: ■ Temperature Resistance Body ■ Thermocouple ■ Thermistor *For more details, please download the PDF or feel free to contact us.

A printed wiring board (or raw board, substrate) refers to a board or sheet with a surface, or a surface and internal connections made with conductive wiring. When various electronic components are mounted on this, giving it the functionality of an electronic circuit, it is called a printed circuit board (assembled substrate). The collective term for these is "printed circuit board." It serves the functions of connection and insulation, as well as supporting components, playing a crucial role in electronic devices. This document explains the types and characteristics of "printed wiring boards." *For more details, please download the PDF or feel free to contact us. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Nippo offers various printed circuit board development options! Please feel free to contact us. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

A light sensor is a device that detects light and converts it into an electrical signal. The basic mechanism of a light sensor involves detecting incoming light and, depending on its intensity and wavelength, demonstrating various responses at a part called the light-receiving element, which converts it into an electrical signal. Additionally, when combined with a light-emitting element, it can detect various states based on the transmission or reflection of light. Next, the operating principle of a light sensor is to detect various information based on the magnitude of the current generated when light is incident on the light-receiving element. In the case of a photodiode being used as the light-receiving element, when light is incident, photons generate and separate electrons and holes within the semiconductor, producing a current in the external circuit. Since the current changes in proportion to the intensity of the light, the strength of the light can be measured electrically. This document introduces the applications and examples of light sensors. Nippo is developing light sensor substrates. Please feel free to contact us. *For more details, please download the PDF.

API stands for "Application Programming Interface," which is provided over the internet. In simple terms, it is an interface that connects software, programs, and web services. APIs are a means for different software components and services to communicate with each other and share functionalities. In other words, by implementing an API, a company's services or programs can be utilized by other companies as well. For example, the ability to register on membership sites, input delivery information on e-commerce sites, and use payment services on e-commerce sites without having to enter personal information each time is thanks to API integration. This document introduces the basics of Web APIs and examples of applications. If you are considering developing cloud services, please feel free to contact us. *For more details, please download the PDF.

In recent years, the transition from physical switches to touch panels has been progressing, with an increasing number of adoption examples not only in consumer devices like smartphones but also in industrial equipment. Touch panels allow for operation through graphical icons and menus, making them easier to use compared to traditional physical buttons, and they excel in "intuitive operability." Additionally, there are benefits such as: - The ability to customize the display screen according to usage methods and processes - The overall compactness of the device … and more. Touch panels have various characteristics depending on their technological methods, so selecting the right one based on application is key. This document provides detailed information on: ■ Benefits of adopting touch panels ■ Main technological methods of touch panels ■ How to choose a touch panel ■ Examples of touch panel implementation Please take a look! *In some cases, other options may be more appropriate depending on the application. In addition to touch panels, there are options for screen displays using PCs/tablets or 7-segment displays, so if you are considering planning or development, feel free to consult with us.

A humidity sensor is a device that measures the humidity contained in the air. It is used in various fields, from general household applications such as air conditioners and humidifiers to agriculture, industry, and healthcare. Since the methods of measuring humidity and their accuracy vary, it is necessary to choose one that suits the intended purpose. ＼Free helpful materials available／ For more details, please view the PDF data from "Catalog Download." We also welcome any questions or inquiries regarding circuit board development, so feel free to contact us.