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    Automatic electric bell using wifi

    A suitable microcontroller for this project would be the ESP32. It's a budget-friendly microcontroller with built-in Wi-Fi capability, which makes it easy to connect to the internet and fetch real-time data. The ESP32 also has plenty of GPIO pins for controlling multiple bells and interfacing...
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    ESP32 Web Server with Slider

    Good project. I can see another ESP32 Webserver for Home Weather Station PCB.  https://www.pcbway.com/project/share/ESP32_Webserver_for_Home_Weather_Station.html
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    Led Control with ESP Webserver

    Very good project. If you want to customize an ESP32-C3 board of yourself, you can see the BOM here: https://www.pcbway.com/project/shareproject/ESP32_C3_DevBoard_208483e1.html
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    Neo Pixels Ring with Arduino Nano

    Thanks a lot for the elaborate tutorial. Here I found another Neopixel ring clock. This one is also nice and well built. https://www.pcbway.com/project/shareproject/NeopixelQuarterRing_cbc70e1a.html
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    Node-Red Telegram Bot with Temperature Logger Part-2

    Thanks a lot for sharing this project. Earlier, I came across many telegram-related projects like this. https://www.pcbway.com/blog/PCB_Design_Tutorial/ESP32_CAM_with_Telegram__Take_Photos__Control_Outputs__Sensor_Readings_and_Motio.html Your blog is much more elaborate. 
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    Unknow tiny PCB contact

    You can post your query to digikey forum. 
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    Lattepanda alternative

    Thanks a lot.
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    Crypto Mining with ESP32

    Thanks for the detailed discussion of the project. Here somebody designed a smaller alternative https://www.pcbway.com/project/shareproject/Atiny_85_crypto_miner_9415f34a.html It is based on Attiny85. 
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    Digital Sound / Bell Timer Announcer

    I think for this type of smart projects, you must choose STM microcontrollers. With Arduino, the nearest thing I could find is this one:  https://www.youtube-nocookie.com/embed/F5pfytaL18I?feature=oembed If you just want to make simple Arduino-based school bell, you can follow this design...
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    Lattepanda alternative

    Yes. The link I posted. The smart grocery cart project. 
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    DHT11 with ESPNOW

    If you are interested, you can make a PCB of your project: https://www.pcbway.com/project/shareproject/Battery_powered_and_compact_design_ESP32_temperature_and_humidity_sensor_ba934715.html This PCB also features ESP32 and DTH11. It's quite compact.  
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    Transformers PCB BADGE

    It's really beautiful. 
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    Circuit to monitor your Ac transformer and send you a message unto your phone

    This paper may help you: https://ieeexplore.ieee.org/document/10053405
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    [Internet of Things Antenna Selection Guide] 2.4GHz Band Gain Antenna Module Equipment Selection

    Can these modules E73-2G4M04S1A, E73-2G4M04S1B, E73-2G4M08S1C, E73-2G4M04S1D be used instead of ESP8266?
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    3-Wires/4-Wires FAN Control and Over Temperature Protection using LM35 and ATTiny13

    Wow! What a detailed video. Thanks. 
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    IR Remote Tester and Decoder

    Thanks. I did the decoder with Arduino. I could change the color of an RGB LED by pressing different numbers on the remote. I wish to try it without Arduino someday. 
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    Simple Audio sensor board connection to a speaker

    You need a Sound Detector module, speaker, amplifier, and connecting wires.  The Sound Detector module provides both analog and digital outputs. To obtain an analog audio signal, connect the AO (Analog Output) pin of the module to the input of an amplifier circuit. You can use a simple...
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    Creating a USB-C Passthrough with power charging detection

    Hi, have you completed this project yet?
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    LED Fader Using 555 Timer IC

    You did a lot of hard work I must say. For this type of fading effect, I always use Arduino or AVR microcontroller. It is very easy to do this with the PWM pins of the Arduino. But making the project this much compact and without programming really needs good skills. Good work. 
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    Stereo Digital FM Transmitter Circuit

    Is there any receiver part of this circuit?
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