super_star

HomeKit three-speed fan (ESP8266)

Overview

describe

Use ESP-12S as master controller
The software uses firmware open sourced on GitHub by Bilibili boss foggyhlw (verified)

After using it for a while, it is still a bit unstable:

Reconfigure connection accessories after each power outage

Sometimes accessories will appear unresponsive

The input is 5V, and the relay can withstand a maximum power of 2500W.

principle

The 5V power input stabilizes the voltage to 3.3V output through TLV1117-3.3. ESP-12S controls three optocoupler switches to control the switch of 2n7002, thereby controlling the relay on and off.

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:2025-06-23 17:28:49

Motor forward and reverse program detection
process(clk_a,clk_b) begin if (clk_a'event and clk_a='1') then if clk_b='1' then k<='1'; else k<='0'; end if; end if; end process; clk_a,clk_b are two square wave pulse signals with a difference of 90
MSP430 MCU key test KEY function
[i=s] This post was last edited by Jacktang on 2019-2-15 20:24 [/i] [backcolor=white][color=#000000]MSP430 MCU KEY function [/color][/backcolor] [backcolor=white][color=#000000] [/color][/backcolor] [
MPS430F149 MCU_Wireless transmission module based on MSP430 MCU.c
#include "Msp430X14X.h" #define CEBIT0 #define CSBIT1 #define PWR_UPBIT3 #define ADDR_INDEX 8 #define ADDR_COUNT 4 void CE_HI(void); void CE_LO(void); void CS_HI(void); void CS_LO(void); void PWR_UP_H
STM8 PWM input capture completion program
Hello everyone, I am working on a project about PWM input capture recently. The microcontroller used is STM8S105. I am using the input capture function of STM8 to use the library function TIME1 CH1 to
Solution to the garbled serial port code of R7F0 official code [verified by netizens]
[i=s] This post was last edited by johnrey on 2014-8-27 15:00 [/i] [size=6][font=Times New Roman][color=#000000][align=left][size=4] I didn't have a USB to UART converter, so I thought of using an osc
sopc About Embedded 8051 Soft-core
What are the pins circled in the picture for?

Datasheet More

Circuits More