The following video is from Tree Information Technology. 【Copyright Statement】 Tree Technology is authorized to reprint. This account aims to disseminate quality resources to better meet the needs of Raspberry Pi enthusiasts. The work is publicly reprinted, source from Bilibili, open from the original text. The course is about Python programming for Raspberry Pi, recommended … Read more
0x00 What Is SDR? “Software Defined Radio (SDR)” has actually been researched and developed for decades, originating from the U.S. military’s multi-mode radio project. Currently, software-defined radio technology is widely used in our daily mobile communication systems. For example, the signal processing in base stations heavily utilizes programmable FPGAs and DSPs. In smartphones, baseband processors … Read more
Previously, the development of four-legged robots was mainly based on microcontrollers. Currently, the overall price of STM32 has risen, making it very difficult to select the main controller chip. Additionally, the computing power of microcontrollers is still insufficient for four-legged robots. Currently, the control frequency of the entire robot’s code execution has significantly decreased compared … Read more
Today, I will build a numeric keypad based on the Raspberry Pi Pico. I will create a simple orthogonal numeric keypad with 20 switches. Then, I will introduce how to install KMK firmware on it. KMK can be installed on Python-based microcontrollers. It is used for some simple projects, from numeric keypads to full-sized keyboards. … Read more
In previous sections, we used the GPIO output function for the LED lights. This time, we will finally need to use the GPIO input function. The human infrared sensing module is quite simple to use. After completing our experiment, we will combine it with the previous buzzer to create a simple human detection alarm. 1. … Read more
From the relevant information about the Raspberry Pi, we can see that there are two serial ports available: one is the hardware serial port (/dev/ttyAMA0), and the other is the mini serial port (/dev/ttyS0). The hardware serial port has a separate baud rate clock source, providing better performance and stability; the mini serial port has … Read more
Unlocknew skills with the Raspberry Pi! Revive your dusty Raspberry Pi! Everyone is welcome to participate Digi-Key Electronics in collaboration with DFRobot and a group of technical experts are hosting a Creative and Technical “Pi” Event! We will share rich experiences and skills in Raspberry Pi application development through 8 technical themed video lectures. You … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us Angular velocity sensors and acceleration sensors are common inertial sensors, often used to measure the rotation and linear motion of objects. The angular velocity sensor (Gyroscope) is used to measure the rotational speed or angular velocity of an object around three axes (X, Y, Z). … Read more
Programming Mode of Pico and MicroPython Concepts This section mainly discusses how to configure our Pico development board for MicroPython development mode, as well as the MicroPython REPL interactive development mode. You can refer to the Raspberry Pi official documentation for more information. Here is the link. Flashing the bootloader firmware onto our Pico for … Read more
Original Author: Dan Jiang Source: Machine Heart The radio left to me by my grandfather can probably be revived. For most young people, vintage radios are indelible childhood memories. With the development of technology, our way of listening to audio content has evolved from radios to smartphones, and later to smart speakers, while the content … Read more