OX-043_17

(1) The transistor + pull-up resistor method   is a bipolar transistor or MOSFET, with a pull-up resistor connected to the positive power supply at the C/D pole. The input level is very flexible, and...[Details]

HMI（人机界面）的发展已经有了显著提升，从最早的灯、刻度盘以及手动开关，变成了包括显示、触摸甚至手势识别等一系列更方面更丰富的指示。也正因此，对具有高级显示和/或摄像头功能的 HMI 的需求，包括 2D/3D 成像和图像识别，高清晰度等技术指标要求与日俱增。 Figure 1. Many HMIs today include camera, imaging, and ...[Details]

The average power consumption measurement of a 60Hz circuit is accomplished by sampling the product of the voltage and current and averaging them (equivalent to VRMS × IRMS × cos(φ)). Four-quadrant mu...[Details]

ADC conversion is the conversion of analog input signals into digital signals by the microcontroller. To read the digital signal, you must wait until the conversion is completed. The completion of a ...[Details]

Low power consumption of microcontrollers Many microcontrollers have low power modes, and STM32 is no exception. After a system or power reset, the microcontroller is in operation, HCLK provides the ...[Details]

DTU hardware circuit Figure 1 DTU hardware circuit diagram The module's operating voltage VCC is 3.2~4.5 V, which can be provided by the step-down chip MIC29302bu, which reduces 5 V t...[Details]

1. How does the STM32 DAC conversion start? Q: How does the STM32 DAC conversion start? How to use the DAC to output a single pulse with controlled pulse width?  A: The DAC is started by writing t...[Details]

Apple released a new Apple Watch early this morning, one of the features of which is blood oxygen detection. Interestingly, according to Huami CEO Huang Wang, the new Amazfit product to be released o...[Details]

We found several problems: In battery design, since cylinders are also highly sensitive in the Z direction, if the thickness of the battery pack, internal spacing, and smoke exhaust channels are ta...[Details]

    Bosch recently launched a new product, the electronically controlled clutch (eClutch), which allows drivers of manual transmission cars to stop and start their cars in stop-and-go traffic without...[Details]

Hydrogen fuel cell vehicles are an important technical route for my country's new energy vehicle industry. In the past few years, due to their advantages such as cleanliness, pollution-free and long ...[Details]

introduction I have been learning several serial communication protocols recently and I feel that I have gained a lot. This article is the first article to learn the IIC bus protocol. I will write an...[Details]

　　At first glance, a variable DC power supply device seems simple. But it is an extremely complex, accurate, and durable high-load electronic device. Whether it is resistive, inductive, capacitive,...[Details]

Requirements Oscillation Period T = 1~10S, select resistance and capacitance parameters, and draw a connection diagram. Solution The circuit is shown in Figure 9-4. ...[Details]

Fault phenomenon Black screen when not turned on Testing process After testing, it was found that the instrument did not turn on and the screen was black because the control board was damaged. Re...[Details]