如果你接触过一些单片机项目，可能会注意到一个现象：像经典的51单片机、Arduino常用的ATmega系列这些比较早期的芯片，大多工作在5V电压下；而如今许多新一代的MCU、传感器或者处理器，却普遍转向了3.3V供电，有些甚至在芯片内部，核心电路运行在更低的电压 ...

TOKYO, September 17, 2025--(BUSINESS WIRE)--Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced the RA0L1 microcontroller (MCU) Group ...

The documentation says that the sensor should be supplied with 3.3V, and optionally 5V. Since it's not documented why 5V is optional and what needs to be done to supply 5V (the wording "optional" is ...

The AirPods Pro 3 will feature a slightly smaller charging case and a capacitive pairing button, according to the leaker known as Majin Bu. Citing discussions with a prominent accessory manufacturer, ...

GUITION JC4880P433 is a 4.3-inch capacitive touch display development board built around the GUITION JC-ESP32P4-M3 ESP32-P4 and ESP32-C6 module, which we have also seen used in the JC-ESP32P4-M3-DEV ...

Turnkey touch controllers are an easy way to upgrade from mechanical buttons to modern touch buttons or displays. With the release of its 12-button MTCH2120 touch controller, Microchip Technology ...

什么是水下机器人，水下机器人长什么样，水下机器人的用途是什么……对于许多普通大众来说，水下机器人似乎还很陌生 ...

标准三端线性稳压器的压差通常是 2.0-3.0V。要把 5V 可靠地转换为 3.3V，就不能使用它们。压差为几百个毫伏的低压降 （Low Dropout， LDO）稳压器，是此类应用的理想选择。图 1-1 是基本LDO 系统的框图，标注了相应的电流。从图中可以看出， LDO 由四个主要部分 ...