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This is the third in a series of minimalist watches based on the ATtiny85 family. This watch displays the time by drawing an analog watch face on a tiny 64x48 OLED display. It uses a separate crystal...[Details]
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Everyone knows PPTC, but many people are confused about thermistors. In fact, according to different Chinese language names, resettable fuses, polymer switches, overcurrent protection sheets, etc. ...[Details]
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Abstract: This paper introduces a Buck DC/DC converter that can be used for satellite-borne switching power supply. In order to meet the needs of satellite-borne switching power supply, compared ...[Details]
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In a computer system, whether using dynamic RAM or static RAM, its biggest disadvantage is that the information stored in it will disappear after the power is turned off. Even a momentary power outa...[Details]
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The STM32 microprocessor is based on the ARM core, so many ARM-based embedded development environments can be used for the STM32 development platform. All development tools can be used for STM32 devel...[Details]
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1 Programmable Gain
Amplifier
There are two types of programmable gain amplifiers: one is a specially designed
PGA
circuit, namely the integrated PGA, and the other i...[Details]
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1: Processing of redundant unused input pins
In most cases, not all pins of integrated circuit chips will be used. For example, the 74ABT16244 series devices can use up to 16 I/O pins, but in...[Details]
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Photovoltaic Headlines (WeChat ID: PV-2005) learned that on August 30, the State Power Investment Corporation issued the 51st batch of centralized bidding announcements for 2024, purchasing 12.5GW ...[Details]
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Power supply 0-1 hour timed
AC Power supply
Circuit
The AC power supply 555 with a power supply of 0~1 hour constitutes a timer within 1 hour. J is the coil impedance 212Ω IRC MR31...[Details]
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Tesla is reportedly working with some mysterious third parties to deploy a Megacharger network to provide charging services for its Semi trucks. In 2017, Tesla released the Semi semi-trailer truck....[Details]
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In April 2020, the application for listing on the Science and Technology Innovation Board of SiRuiPu, a chip company invested by Huawei, was accepted. This is the first project invested by Huawei to ...[Details]
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1. One segment of a 4-digit common anode digital tube is not lit, while the segments of other digits can be displayed normally. This is somewhat unreasonable, because the 4 segments of the common ano...[Details]
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In the process of using the microcontroller, we must have a profound understanding of the "0" and "1" of the digital signal. Generally speaking, the high level "1" is 5V (for the microcontroller with...[Details]
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When the Pico oscilloscope tests a signal with an output impedance of 50Ω, a 50Ω to 1MΩ through terminal is required. Recently, during a field test at a customer's location, we found that the w...[Details]
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The principle of digital oscilloscope determines that there must be dead time in waveform observation, and the length of dead time directly affects the oscilloscope's ability to capture abnormal sign...[Details]
Analogue and Mixed Signal
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