xK2bpax

Low-power PWM output

Overview

In the sweltering summer heat, when camping outdoors, a cool breeze is essential. This project, based on a 51 microcontroller, controls two channels of PWM wave output and allows for adjustable wind speed via Bluetooth control. Bluetooth commands are sent as: auto (automatic mode) and game (full-speed mode). The video shows it installed in the host computer case.

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2026-03-26 19:05:43

[Event has ended] [Group purchase] Group purchase real6410 development board + module accessories - (deadline: September 3)
Board introduction: https://bbs.eeworld.com.cn/thread-298330-1-1.html The link of the first group purchase: https://bbs.eeworld.com.cn/thread-298780-1-1.html Our group purchase has been recognized by
[Evaluation and experience of Zhongke Yihaiwei EQ6HL45 development platform] + Development board hardware analysis
Development Board Hardware AnalysisCore board:The power supply of the core board's 50MHz active crystal oscillator uses a 22Ω resistor in series with the main power supply to isolate power supply nois
Are RC filtering and RC oscillation circuits contradictory?
I recently learned about RC filtering and RC oscillation circuits, and I feel that these two circuits are a bit contradictory. because:The RC oscillation circuit is used to produce a fluctuating wavef
I saw someone online using an electronic device to simulate a person's finger touching a mobile phone screen. What is the principle behind this?
The small device uses a motor to control a thin sheet to touch the capacitive screen of the mobile phone, and then bounce back, realizing a simulated finger touch. (There are several sets of controls,
FSMC of stm32103zet6
Hello, moderator. I am using STM32 to control DM9000, but I cannot connect to the network. ARP is sent but not received. Other functions such as reading ID and register are normal. I used to control i
Direct coupled amplifier circuit
Why are the two stages of a direct-coupled amplifier circuit interconnected? Why does it easily cause the base current of tube T2 to be too large? [[i] This post was last edited by sinzcosytanx on 201

Datasheet More

Circuits More