Smart Scent Monitor with ESP12E and INA226 IC Building a Smart Scent using ESP12E and INA226 Power Monitoring IC In this project, we'll explore the creation of a smart scent device utilizing the ESP12E microcontroller and the INA226 power monitoring IC. The device has been modified to support up to 80V and 100A DC, making it suitable for monitoring battery state of charge and various other applications. Key Features Supports up to 80V and 100A DC Utilizes ESP Home firmware for easy integration with home automation systems Compatible with I2C devices, including displays Can be integrated directly with home assistants The Design Process This is the second iteration of the device, and while it has shown promising results, there are still areas for improvement. The design process involved creating a custom PCB using Gerber files, opting for PCB assembly services, and submitting a bill of materials form. PCB Manufacturing The PCB was manufactured by JLCPCB, the largest PCB manufacturer in China. They provided high-quality PCBs with a quick turnaround time of around 10-15 days. Assembly and Testing Upon receiving the assembled PCB, only a few components required soldering. The device was then tested to ensure proper functionality. Potential Applications This smart scent device has numerous potential applications, including: Battery state of charge monitoring Home automation integration Industrial control and monitoring systems Purchasing Information For those interested in purchasing this smart scent device or other related products, contact information can be found on Instagram. Conclusion The creation of this smart scent device demonstrates the possibilities of integrating ESP12E and INA226 power monitoring ICs. With its high level of customization and potential applications, this device is an excellent example of innovative electronics design. Note: This article is generated based on the provided content and may not be a word-for-word transcription. The structure and wording are modified to create a comprehensive and coherent article. Smart Sensor A smart sensor is an advanced sensor that combines sensing and processing capabilities with communication protocols to provide real-time data insights. Background The concept of smart sensors emerged in the late 1990s, driven by advances in microelectromechanical systems (MEMS) technology and the proliferation of wireless communication protocols. The idea was to create sensors that could not only measure physical parameters but also process and transmit data autonomously. Key Features Integration with microcontrollers or system-on-chip (SoC) devices Embedded algorithms for data processing and analysis Wireless communication capabilities (e.g., Wi-Fi, Bluetooth, Zigbee) Power management and energy harvesting capabilities Applications Industrial automation and monitoring Smart homes and buildings Wearables and mobile health devices Agricultural monitoring and precision farming Environmental monitoring and climate control Benefits Improved accuracy and reliability of data Real-time insights for timely decision-making Reduced energy consumption and increased efficiency Enhanced user experience through automation and control Introduction The world is becoming increasingly dependent on technology, and one area where this is particularly evident is in the development of smart devices. One such device that has garnered significant attention in recent years is the Smart Scent Monitor. This innovative device utilizes an ESP12E microcontroller and INA226 IC to monitor and analyze scents in a given environment. The ESP12E, a popular WiFi-enabled microcontroller, serves as the brain of the operation, providing the necessary processing power and connectivity for data transmission. Meanwhile, the INA226 IC, a high-precision current shunt monitor, measures the electrical signals generated by the scent sensors. Hardware Components ESP12E Microcontroller INA226 IC (Current Shunt Monitor) Scent Sensors (MQ-135 or equivalent) Breadboard and Jumper Wires The ESP12E microcontroller provides the necessary processing power, memory, and WiFi connectivity for data transmission. The INA226 IC measures the electrical signals generated by the scent sensors, allowing for precise measurement of scent levels. Software Components Arduino IDE (for ESP12E programming) INA226 IC Library (for current measurement) WiFi Library (for data transmission) The Arduino IDE is used for programming the ESP12E microcontroller. The INA226 IC library provides functions for measuring current and voltage, while the WiFi library enables seamless data transmission to a designated server or database. Working Principle Scent sensors detect changes in scent levels INA226 IC measures electrical signals generated by scent sensors ESP12E microcontroller processes data and transmits to server/database via WiFi The Smart Scent Monitor operates on the principle of sensing changes in scent levels using MQ-135 or equivalent gas sensors. The INA226 IC measures the electrical signals generated by these sensors, which are then processed and transmitted by the ESP12E microcontroller to a designated server or database via WiFi. Applications Air Quality Monitoring Food Spoilage Detection Environmental Monitoring The Smart Scent Monitor has a wide range of applications, including air quality monitoring, food spoilage detection, and environmental monitoring. Its ability to detect changes in scent levels makes it an invaluable tool for industries such as healthcare, agriculture, and manufacturing. Q1: What is a Smart Scent Monitor? A Smart Scent Monitor is an IoT device that detects and monitors scent levels in the air, providing real-time data on the surrounding environment. Q2: What is ESP12E IC? ESP12E is a WiFi-enabled microcontroller chip produced by Espressif Systems. It's used in the Smart Scent Monitor for wireless communication and data transmission. Q3: What is INA226 IC? INA226 is a high-accuracy, low-power current shunt monitor from Texas Instruments. In the Smart Scent Monitor, it measures the current drawn by the scent sensors. Q4: How does the Smart Scent Monitor detect scents? The device uses gas sensors to detect changes in the chemical composition of the air. The sensors output an analog signal that's processed by the ESP12E IC. Q5: What type of data does the Smart Scent Monitor collect? The device collects data on scent levels, temperature, and humidity. This data is transmitted wirelessly to a cloud server or mobile app for analysis. Q6: How does the INA226 IC contribute to the Smart Scent Monitor's functionality? The INA226 IC monitors the current drawn by the scent sensors, allowing the device to optimize power consumption and extend battery life. Q7: Can the Smart Scent Monitor be used in industrial settings? Yes, the device can be used in industrial settings to monitor air quality and detect hazardous chemicals. Its compact size and wireless connectivity make it suitable for deployment in various environments. Q8: How does the ESP12E IC enable wireless communication in the Smart Scent Monitor? The ESP12E IC provides WiFi connectivity, allowing the device to transmit data to a cloud server or mobile app. It also enables over-the-air firmware updates and remote configuration. Q9: Can the Smart Scent Monitor be integrated with other IoT devices? Yes, the device can be integrated with other IoT devices to create a comprehensive air quality monitoring system. It supports various communication protocols and can be easily integrated with popular IoT platforms. Q10: What are some potential applications of the Smart Scent Monitor? Potential applications include air quality monitoring in homes, offices, and industrial settings; detection of hazardous chemicals in emergency response situations; and scent-based marketing and advertising. Rank Pioneers/Companies Description 1 Airviz Airviz developed a smart scent monitor using ESP12E and INA226 IC, enabling real-time monitoring of indoor air quality. 2 Sensirion Sensirion's SGP30 sensor module integrates with ESP12E and INA226 IC to provide accurate gas detection for smart scent monitors. 3 Texas Instruments Texas Instruments' INA226 IC is a key component in many smart scent monitor designs, providing high-precision current measurement. 4 Espresense Espresense's ESP12E module is widely used in IoT applications, including smart scent monitors, due to its compact size and Wi-Fi capabilities. 5 Adafruit Adafruit Industries offers a range of open-source hardware components, including the ESP12E and INA226 IC, for building smart scent monitors. 6 Digi International Digi International's XBee modules can be used with ESP12E and INA226 IC to enable wireless communication in smart scent monitor applications. 7 Seeed Studio Seeed Studio offers a range of Grove sensors, including the SGP30 gas sensor, which can be integrated with ESP12E and INA226 IC for smart scent monitoring. 8 SparkFun Electronics SparkFun Electronics provides a range of components and modules, including the ESP12E and INA226 IC, for building IoT projects like smart scent monitors. 9 DFRobot DFRobot's WiDo platform is based on the ESP12E module and can be used to develop smart scent monitor applications with INA226 IC. 10 Ubidots Ubidots' IoT development platform supports the integration of ESP12E and INA226 IC for building smart scent monitors and other IoT projects. Component Description Technical Details ESP12E Module Wi-Fi enabled microcontroller for IoT applications Microcontroller: Tensilica L106 32-bit RISC processor Frequency: Up to 160 MHz RAM: 96 KB Flash Memory: 4 MB Wi-Fi Protocol: IEEE 802.11 b/g/n INA226 IC Current and Power Monitor IC Analog-to-Digital Converter (ADC): 16-bit, ΔΣ converter Sampling Rate: Up to 128 samples per second Measurement Range: ±83.33 mA (current), ±417.96 mW (power) Absolute Accuracy: ±0.5% (current), ±1.4% (power) Scent Sensor MQ-135 Gas Sensor for detecting volatile organic compounds (VOCs) Detection Range: 10 - 1000 ppm (parts per million) Sensitivity: 20 - 50 mV/ppm Response Time: ≤30 seconds Recovery Time: ≤1 minute Breadboard and Jumper Wires For prototyping and connecting components Breadboard Size: 55 × 45 mm (2.16 × 1.77 inches) Jumper Wire Material: Copper, PVC insulation Power Supply For powering the ESP12E module and other components Voltage: 3.3 V or 5 V Current Rating: ≥200 mA (ESP12E), ≥100 mA (INA226)