1. Physical Layer: The physical layer specifies the transmission medium, electrical characteristics, IO circuits, and synchronization mechanisms. In simple terms, it defines how the sender Tx obtains the encoded data from the upper layer, converts it into what kind of electrical signals, and sends it to the receiver Rx through how many channels and in … Read more
LucidGloves is an open-source project aimed at enabling users to create and use their own VR haptic gloves. It is centered around Arduino and ESP32 microcontrollers and is compatible with the SteamVR platform. Easy-to-Use DIY Gloves The goal of LucidGloves is to make it easy for anyone to create VR haptic gloves. Whether you are … Read more
The story goes like this: In September 2021, I saw a video by my friend @ElectricStar on Bilibili, sharing his experience with the Philips Hue Play ambient light. I was immediately captivated by the colorful effects that could sync with screen content and the HomeKit support. However, when I checked on JD.com, the nearly 2000 … Read more
Arduino ULTRASONIC Sensor HC-SR04 Hack for Smart Fans!
01 Camera Calibration 1. Activate the Camera Connect the CSI camera to the Raspberry Pi camera interface, ensuring that the blue side of the cable faces the black switch cover; Connect the Raspberry Pi to a display and open the terminal to input commands; Select Interface option and then choose P1 Camera; Save and exit, … Read more
Eliminating the Jelly Effect The iPad Mini, a magical device. Whenever there is an article related to Apple, our comment section is flooded with questions from mini fans asking: Is there any news about the new iPad Mini? Finally, after three years since the last iPad Mini was released, the new Mini has arrived amidst … Read more
QP（Quantum Platform） is a lightweight, open-source, state machine-based, event-driven application framework. This framework consists of four parts: Event Processor (QEP); Lightweight Event-Driven Framework (QF); Task Scheduling Microkernel (QV, QK, QXK); Real-Time Tracing Debugger (QS). (1) QEP Quantum Event Processor is a general-purpose, portable, reusable state machine engine. QEP allows you to directly map UML-style state … Read more
Recently discovered an interesting development board that is based on RISC-V and FPGA. This form is my first encounter. It is the BeagleV®-Fire BeagleV®-Fire adopts Microchip’s PolarFire® FCVG484E 5-core RISC-V system-on-chip and FPGA architecture. It has 4 64-bit RV64GC application cores and 1 64-bit RV64IMAC monitor/boot core, with a performance of 3.125 CoreMarks/MHz and 1.714 … Read more
In business, “must” represents the minimum requirements for market participation. Today, there are over a hundred open-source and commercial RTOS in the embedded market, most of which lack functional safety certification. Given this, it is clear that RTOS functional safety certification is not yet a “must” today, but perhaps it should be. RTOS is the … Read more
First, let me clarify that MPU has many meanings, and there are two common ones: MPU:Memory Protection Unit; MPU:Microprocessor Unit; Additionally, some may associate it with modules like MPU-6050. So, please do not confuse MPU. Why Use MPU? If you develop embedded projects that suffer significant economic losses or major accidents due to memory overflow … Read more