bidrohini

Thanks for sharing the project. If you want to create a PCB with casing for your BMP280-based projects in the future, you can consider this design. It broadcasts temperature and pressure updates every 4 seconds. The gateway and 3-button remote use the pressure readings to calculate the altitude.10440 Li-ion 3.7V 600mAh AAA size battery that lasts several months on a single charge. It has a 3D-printed water-resistant enclosure. https://www.pcbway.com/project/shareproject/BMP280_RFM69CW_Remote.html

Very good. I came across another PCB based on ESP32 and DHT11 here: https://www.pcbway.com/project/shareproject/ESP32_C6_development_board_79c4da37.html This is more compact. All parts are accomodated in a single board. It's an ESP32-C6 based development board that can be connected to a breadboard without taking up much space. Has a 3.3V regulator onboard. Features two sensors: LM35 (temperature) and DHT11 (temperature + humidity), as well as a WS2812 neopixel LED.

Hi, It's a very good project. Using the voice recognition module needs a lot of expertise, no doubt. However, you can give your project a more compact look and better build. You are using a breadboard. It can create problems. sometimes one or two wires may disconnect. You can print a PCB instead. For example, like this one: https://www.pcbway.com/project/shareproject/Voice_Controlled_Door_Lock_using_Alexa_and_Arduino_7cf9dadf.html As you can see, this is also a voice controlled project. It has an on board Arduino Nano IoT 33. You can make a board like this using Beetle ESP32 C microcontroller, voice recognition module and neopixel.

Coverage: Zigbee: Zigbee operates on a mesh network, allowing devices to relay signals to extend coverage throughout your home. It's particularly effective for larger homes with multiple floors and rooms. Z-Wave: Similar to Zigbee, Z-Wave also utilizes a mesh network for extended coverage. Both Zigbee and Z-Wave are suitable for multi-room and multi-floor setups. Wi-Fi: Wi-Fi offers excellent coverage but may experience interference in densely populated areas or larger homes with thick walls. Bluetooth: Bluetooth's coverage is typically limited to a single room, making it less ideal for expansive smart home setups. Energy Consumption: Zigbee: Zigbee devices are known for their low power consumption, leading to longer battery life for battery-operated devices. Z-Wave: Z-Wave devices also boast low power consumption, contributing to extended battery life. Wi-Fi: Wi-Fi devices tend to consume more power compared to Zigbee and Z-Wave, potentially leading to more frequent battery replacements. Bluetooth: Bluetooth Low Energy (BLE) is designed for energy efficiency, but battery life can still vary depending on device usage. Some smart home hubs support multiple wireless protocols, allowing you to integrate devices using different standards. This provides flexibility and compatibility but may require additional setup and configuration.The best wireless protocol for your smart home depends on your specific requirements, including coverage, energy efficiency, security, and future expansion plans. Consider factors such as the size of your home, the types of devices you plan to connect. Here is an example of a wifi-based home automation project. https://www.pcbway.com/project/shareproject/Alexa_Control_Smart_Home_Automation_Using_Arduino_Nano_ESP32_45d0b79a.html

The project looks really great. Here is another good ESPhome project https://www.pcbway.com/project/shareproject/homeThing_S3_2b3ac3ac.html HomeThing is a universal remote platform that works with any smart home. Now faster, with Voice Assistant, and easier to set up.

Thanks for sharing the project. Here is another good project based on DHT11. This is done with ESP8266. But it can be done with ESP32 too. This is a room-temperature monitor. We can use it to monitor our room from anywhere in the world with dht11: https://www.pcbway.com/project/shareproject/Room_Temperature_Over_Internet_With_BLYNK_ESP8266_DHT11_91b0d3f5.html

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 with other peripherals. You can also print PCB of your project from PCBway. https://www.pcbway.com/project/shareproject/ESP32_Power_Montiroing_PZEM_004T_and_Relay_Control_c8098cc0.html

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

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

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

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.

You can post your query to digikey forum.

Thanks a lot.

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.

I think for this type of smart projects, you must choose STM microcontrollers. With Arduino, the nearest thing I could find is this one: If you just want to make simple Arduino-based school bell, you can follow this design: https://www.pcbway.com/project/shareproject/Arduino_School_Bell_Simple_DIY_058abe6e.html