VVVF Door Machine Controller Operation Manual

VVVF Door Machine Controller Operation Manual

VVVF Door Machine Controller Operation Manual Table of Contents 1. Installation Work Procedures 1.1 Installation Precautions 1.2 Usage Precautions 2. Product Introduction 2.1 Working Environment 2.2 Product Technical Specifications 2.3 Control Panel Description 3. Inverter Installation and Wiring 3.1 Installation Location and Space 3.2 Terminal Diagrams and Descriptions 3.3 Wiring Requirements 4. Function Parameter Table … Read more

51 Microcontroller Tutorial (20): Driving the RC522 Chip to Implement RFID Functionality

51 Microcontroller Tutorial (20): Driving the RC522 Chip to Implement RFID Functionality

Table of Contents 1. RC522 Driver PrinciplesDriver Principles 2. Code Implementation 3. Summary & Precautions 01 — RC522 Driver Principles The RC522 is a highly integrated contactless read/write chip launched by NXP, designed specifically for Near Field Communication (NFC) and Radio Frequency Identification (RFID) applications. It is widely used in access control systems, payment terminals, … Read more

Impressive! Recreate UC Berkeley’s Humanoid Robot for Just $2,300 with 3D Printing

Impressive! Recreate UC Berkeley's Humanoid Robot for Just $2,300 with 3D Printing

In the field of humanoid robots and embodied intelligence, UC Berkeley is undoubtedly a top player. Last year, their team created the powerful humanoid robot Berkeley Humanoid for under $10,000, attracting widespread attention in the industry. Recently, they have made another breakthrough— with just a 3D printer, you can replicate a Berkeley Humanoid Lite (the … Read more

Impact of Adaptive Servo-Ventilation on Quality of Life and Daytime Sleepiness in Patients with Treatment-Emergent Central Sleep Apnea

Impact of Adaptive Servo-Ventilation on Quality of Life and Daytime Sleepiness in Patients with Treatment-Emergent Central Sleep Apnea

Treatment of treatment-emergent central sleep apnea (TE-CSA) is the most common indication for adaptive servo-ventilation (ASV), but evidence regarding the impact of TE-CSA treatment on quality of life is limited. On May 13, a paper was published by Michael Arzt from Regensburg University Hospital in the journal Ann Am Thorac Soc titled “Adaptive Servo-ventilation for … Read more

J. Am. Chem. Soc.: Analysis of Mitochondria-Specific Methionine Sulfoxide Reductase Activity Based on Dual-Channel Phosphorescence Ratiometry and Lifetime Imaging

J. Am. Chem. Soc.: Analysis of Mitochondria-Specific Methionine Sulfoxide Reductase Activity Based on Dual-Channel Phosphorescence Ratiometry and Lifetime Imaging

The redox homeostasis of mitochondria is crucial for mitochondrial function and cellular status, achieved through the intricate interplay between oxidative stress factors (such as reactive oxygen species/reactive nitrogen species ROS/RNS) and the antioxidant defense system. An imbalance in redox state can lead to protein damage, ultimately resulting in tissue injury. For instance, methionine residues in … Read more

Study on the Mechanism of Capacitance Energy Regulation in Rare Earth Doped BaTiO₃/PbTiO₃/KNbO₃ Ferroelectrics

Study on the Mechanism of Capacitance Energy Regulation in Rare Earth Doped BaTiO₃/PbTiO₃/KNbO₃ Ferroelectrics

Title J Eur Ceram Soc:Study on the Mechanism of Capacitance Energy Regulation in Rare Earth Doped BaTiO₃/PbTiO₃/KNbO₃ Ferroelectrics Research Background Perovskite ferroelectrics are considered ideal energy storage materials due to their high dielectric constant, but their strong coupling ferroelectric domains lead to low breakdown strength and high losses. Experiments have shown that rare earth doping … Read more

Rockchip: A Leader in SoC Chips Experiences Explosive Growth

Rockchip: A Leader in SoC Chips Experiences Explosive Growth

Rockchip Electronics Co., Ltd. is a wholly-owned domestic professional integrated circuit design company and a nationally recognized integrated circuit design enterprise, focusing on the research and development of digital audio and video, and mobile multimedia chipsets. 1.‌Business Overview‌ ‌Core Business Areas‌ ‌AIoT Chips‌: Covering smart home, industrial vision, robotics, and other fields, the flagship product … Read more

Lei Jun Throws a ‘Chip Bomb’ at Midnight! Xiaomi’s Self-Developed SoC Breaks into the Global Top Four, Targeting Qualcomm

Lei Jun Throws a 'Chip Bomb' at Midnight! Xiaomi's Self-Developed SoC Breaks into the Global Top Four, Targeting Qualcomm

The Xiaomi Technology Park in Beijing is brightly lit at midnight, with Lei Jun holding the newly successful “Xuanjie O1” chip in his palm. This small square piece, weighing less than 1 gram, embodies over 2,000 days and nights of hard work from Xiaomi’s engineers. As the live broadcast camera sweeps across the chip’s surface … Read more

Photoinduced Decarboxylative Allylation: Dual Atom Substitution for sp3 Fragment Skeleton Editing

Photoinduced Decarboxylative Allylation: Dual Atom Substitution for sp3 Fragment Skeleton Editing

Image source: J. Am. Chem. Soc.Introduction:Professor Ruben Martin reported a photoinduced palladium-catalyzed interceptive decarboxylative allylation reaction. This strategy innovatively achieves atom pair exchange and a series of skeletal contraction and extension reactions, providing a non-traditional retrosynthetic approach for complex molecule construction, while offering a modular and versatile synthetic tool for rapidly and efficiently obtaining sp3 … Read more

Xiaomi’s Self-Developed SoC ‘Xuanjie O1’ Specifications Remain a Mystery, Successfully Taped Out 3nm Chip Last Year

Xiaomi's Self-Developed SoC 'Xuanjie O1' Specifications Remain a Mystery, Successfully Taped Out 3nm Chip Last Year

Recently, it was officially announced that Xiaomi’s self-developed mobile SoC chip has been named “Xuanjie O1” and will be released in late May. This sudden emergence of a self-developed chip has surprised many, and Lei Jun specifically emphasized that this chip is designed and developed independently by Xiaomi. Xiaomi has done an excellent job of … Read more