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Jigglypuff IoT Carbon Dioxide and Dust Monitor (Tracker) w/ Telegram
Aktar Nov 12,2021
The dust density and the carbon dioxide (CO2) density affect my sleep quality and health detrimentally due to the fact that I have allergic bronchitis. Allergic bronchitis is a chronic pulmonary disease, and exposure to allergy triggers like tobacco smoke, pollution, or dust can instigate it. When the dust density and the carbon dioxide density are higher, it becomes struggling for me to breathe, especially while sleeping. Therefore, I decided to create this project to track the dust density and...
carbon dioxide dust Telegram
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Raspberry Pi Pico Radio
Verma Nov 11,2021
Pico radio is a simple raspberry pi pico based FM receiver that uses rda5807m to tune to FM channels. One can listen to these FM channels by attaching an FM antenna in the SMA connector and a 3.5 mm headphone in the audio jack.Hardware build:The hardware is very simple and easy to use. It consists of the following components:an OLED display for showing radiofrequency and FM channel info.a tack switch or push-button for changing channels.a LED for indicating signal strength.You need to surface mo...
4th PCB Design Contest-IoT Theme 4th PCB Design Contest-Free Theme
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Touchless Covid Free Electronic Dice Using Arduino
Adhikari Nov 10,2021
Created a touchless Covid Free Electronic Dice using Arduino to play some board games with my son.My new project is an amazing way of giving our younger generation the taste of board games while staying COVID free.Total cost: AU$12Time taken: 4hrsComponents RequiredFor this project we need:1 x Push Button Switch1 x Arduino Nano R3 (or ESP8266)1 x 8x8 Led Matrix with MAX7219 IC1 x Step Up Power Module [MT3608]1 x IR Sensor1 x AA Battery Holder and Batteriesand Some Connecting CablesCirc...
covid free dice electronic dice arduino dice
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IoT Connect
Verma Nov 09,2021
 IoT Connect is an open-source IoT platform built on top of esp8266, which allow users to connect and control their home appliance remotely in the most efficient manner.This project is mainly divided into 3 major sections i.e., Hardware, Firmware, and Web UI.Hardware:The hardware is built on top of ESP8266 and 74HC595N shift register, which enables to use of only 3 GPIO to control 8 devices. Because of this, we are left with extra GPIO that can be used for another purpose such as connecting...
4th PCB Design Contest-IoT Theme
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Woof Meter
Margolin Nov 08,2021
The Woof Meter is for testing subwoofer speakers to measure their Thiele-Small (TS) parameters. These parameters are necessary in order to properly design the speaker cabinet. Sometimes you might not have the TS parameters for a subwoofer speaker you want to use and sometimes the TS parameters provided by the speaker manufacturer are wrong.  To measure the TS parameters of a subwoofer you need a sensitive voltmeter with a good low frequency response. Your voltmeter might not have a low-freq...
4th PCB Design Contest-IoT Theme
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Precision Low Frequency Signal Generator
Margolin Nov 08,2021
The Precision Low Frequency Signal Generator produces a User-selected signal from 10Hz to 90Hz with 0.1Hz resolution for testing subwoofer speakers. The frequency is displayed on a 16x2 LCD. The sine wave is produced by stepping through a table of 64 values and sending them to the MCP4921, a 12-bit serial DAC that uses an SPI interface. This is how to use the Precision Low Frequency Signal Generator. INC- Press and release to increase the frequency- Press and hold for about 2 seco...
4th PCB Design Contest-IoT Theme
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Soil Moisture Sensor ESP32 PCB
_adikar Nov 08,2021
Project BackgroundI am very fascinated by technology since my childhood. I like working with electronic gadgets and I am very keen in developing things on my own. Hence, I decided to design a circuit based on the ESP32 IoT development module.Circuit DesignThis circuit consists of a ESP32 development board, a soil moisture sensor and an OLED display. The ESP32 module powers up both the Sensor and the display.The soil moisture sensor has 2 probes attached to it. These probes go into the soil. Thes...
4th PCB Design Contest-IoT Theme
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Firefighting Bot Controller
Deblina Chattopadhyay Nov 04,2021
What it doesA firefighter robot control unit, that can actively sense the presence of fire and tries its best to put it off autonomously. It can sense fire no matter how the robot is oriented in a place. IoT connectivity to get you notified, if any mishap occurs, no matter where you are(of course not inside deep caves, or the middle of the ocean. How it worksThe power supply receives an unregulated dc power supply from the outside, preferably a battery, and creates voltage levels with ...
4th PCB Design Contest-IoT Theme hardware automotive
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400 Watts True RMS Stereo Amplifier Board with inbuilt DC Rectified supply.
Sharma Nov 03,2021
Its 400W Stereo Amplifier Board. Works on 45-0-45 12A Transformer, Designed in Single Layer to Get easy Prototyping,
4th PCB Design Contest-IoT Theme
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BLE I/O board
Enel Nov 01,2021
This is a board with BLE device and support for UART and I2C external devices. This allows you to program several scenes depending of external information and share the data colected by this board with other devices.It has 4 analog input, 4 digital outputs and 2 PWM outputs. There are two general purpose LED and it can be powered with 5V over the microUSB connector.The main purpose of this PCB is to use an smartphone App to program this board. So you can send data over bluetooth and forget about...
4th PCB Design Contest-IoT Theme
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Popular Project
A Modified zFlip 5
With many Samsung zFlip phones hitting the unfortunate fate of a broken folding screen, I took it as an opportunity to build my own silly phone. Taking only the minimum parts required for the phone to...
Mainboard replacement for Nokia 3310//3330
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Upgrade your Flipper Zero with the AI Thinker BW16 RTL8720DN Dual-Band WiFi Expansion Board. Enhance your device's connectivity capabilities with support for both 2.4 GHz and 5 GHz WiFi bands. Perfect...
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The Air Quality Monitor is a compact, ESP32-C3–based device designed to track and display key indoor environmental metrics in real time. At its core, it integrates the Sensirion SEN54 for particulate ...
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