Single board machine automatic reset circuit based on NE555

Single chip microcomputer STM32L151CCU6
1206RGB (single)
0201 package SLP0603 ESD electrostatic diode 5V one-way ESD
Board Crystal 3.2*2.5mm 3225 24M (24.000MHZ) 12PF 10PPM 20PPM 30PPM
Probe domestic double-head probe 038-BB-5.7L The shape of the two ends of the needle is outside the pointed needle
NE555 is one of the 555 series timing ICs. The pin function and application of the 555 series IC are compatible, but the different models have different stability, power saving and oscillation frequency. It's not the same; the 555 is a very versatile and fairly versatile timing IC that requires only a few resistors and capacitors to generate the pulse signals of the various frequencies required by the digital circuitry.
The features of NE555 are:
1. A simple resistor and capacitor can be used to complete a specific oscillation delay. The delay range is extremely wide and can range from a few microseconds to a few hours.
2. It has a large operating power range, and can be matched with logic gates such as TTL and CMOS, that is, its output level and input trigger level can be combined with the high and low states of these logic series.
3. The output current of the output terminal is large, which can directly push a variety of automatically controlled loads.
4. It has high timing accuracy, good temperature stability and low price.

Single board machine automatic reset circuit based on NE555
Single board machine automatic reset circuit diagram


Computer Headphones

Computer headphones are often used on computer, mainly for call, translation and live broadcast. Most of Compute Headset are with a microphone. Usually there are 2 kinds of plugs or jacks.


One is USB plug, which can be used on both laptop and desktop PC. Another is for 2 3.5mm jacks, which can only be used on desktop PC. There will be a small logo next to the two jacks of the desktop computer. The green circle shape is prepared for the headphone, while the pink microphone mark is for the microphone plug.

Computer Headphone

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