The AumRaj’s IoT board includes an inbuilt Wi-Fi and Bluetooth module. This board is feasible for developing IoT-based and BLE (Bluetooth Low Energy) based products. This board uses the ESP32 module with many features. It is easy to connect sensors, relays, and other input-output devices to the board. It is easy to program the board.
Features of the Wi-Blue IoT board are mentioned, below.
- Can connect with beacon devices or wireless sensors using Bluetooth.
- The integration of Wi-Fi and Bluetooth helps to run many applications.
- The IoT chip has in-built antenna switches, power amplifiers, filters, and power management modules.
- It is easy to customize and configure the IoT board as per requirements.
- IoT chip having a wide operating temperature range from -41°C to 104°C.
- Enhance security with WPA/WPA2.
- Supports IEEE 802.11b/g/n WiFi (at 2.4 GHz ) and Bluetooth 4.2/5 (LE) in different product releases.
- Can connect with wired sensor devices using I2C, SPI (Flash/Non-Flash as per release), UART, GPIOs, Groove connector, or MikroBUS.
- Can connect with any web server e.g. MQTT Broker, Aws IOT, Azure IOT HUB, Aliyun IOT using Wi-Fi.
- Can be powered using DC Power Jack or micro-USB power input.
- Easy interface to connect LED display using SPI for debugging.
- Reset to pre-set factory settings.
- Power ON/OFF Button.
AumRaj has capabilities to customize IoT hardware as per requirements.
Benefits of Wi-Blue IoT Board
- The Wi-Fi Bluetooth IoT board reduces the complexity of hardware design as well as minimizes the cost.
- Developers can develop complex embedded wireless applications in a shorter time. It helps in the data acquisition and processing of the Internet of things.
- Easy to run complex IoT applications on this board.
- Reduce the complexity of board design.
- Feasible for IoT, BLE, and Wi-Fi projects.
- IoT chip supports Wi-Fi direct.
Applications of Wi-Blue IoT board
- Easy to use in Smart devices.
- Used in Industrial IoT.
- Feasible for the Infotainment system.
- In Smart Medical systems (not implantable).
- Automation Enterprise-class intelligent control.
- Easy to manage Data systems.
- Used in IoT Gateway, Environment control, Security.
- Used in monitoring and controlling Smart Appliances, Wearables, Smart lighting.
- Smart home automation.
- In automatic vehicle electronics.
- Used in Wireless POS, Measurement and monitoring systems, Beacon, etc.
- Automatic Wireless printer, Tracker, DVR, etc.
The applications of the Wi-Blue IoT board can vary as more features are added to the board. We can interface with more sensors as well as we can connect external modules with this Wi-Blue IoT prototype board.
About Amazon AWS cloud server
An Amazon web service has many features; Let’s see some features of the AWS server.
Mobile-Friendly Access: The AWS services are mobile-friendly. Users can access services via mobile phone. It is easy to use and operate.
Serverless Cloud Function: Users do not worry about the server of AWS. The user has to only upload code on the server. AWS manages and administrates the server.
AWS Databases: The AWS databases are offering based on requirements and managed by AWS. Some of the databases are as below:
- Relational Database
- Non-Relational Database
- Data Warehouse
- In-memory data Store
AWS Storage: The AWS storage is economical, flexible, and reliable. The followings are the types of storage;
- Amazon Glacier
- Amazon Simple Storage Service
- The Amazon EBS
Security: AWS provides security at the protocol and port access level. Different level of security is offering at various level’s protocol.
Apart from these features, there are many features of the AWS services. Let’s get insight into AWS service benefits.
Benefits of AWS
- Easy to use: AWS is easy to use as its design is compatible and reliable. The vendor can easily set up their application using AWS services.
- Cost-effective: The user has to pay as per use of storage, compute power, and other resources. There is no long-term contract and agreement.
- Reliable: Users can take advantage of reliable, scalable, and secure global computing infrastructure.
- Scalability and Performance: The user’s application can scale up and down based on requirements. Users can access the compute and resources when they need them.
- Security: AWS build a strong security framework for physical and virtual support. Many trusted organizations use AWS services and establish that it is a secure service comparatively another service provider.
We can interface various sensors with the Wi-Fi BLE board. Some of the sensor’s details are mentioned below which can be interfaced with the Wi-Blue IoT prototype board.
LM35 Temperature Sensor
The LM35 is a temperature measuring sensor. The output of the sensor is in analog voltage and is proportional to temperature. The output voltage is Celsius and it is not required external calibration circuitry for output.
The sensitivity measurement range is 10mV/degree Celsius. If the temperature increases the output voltage also increases. The temperature output is more accurate compared to the thermistor.
Features of LM35
- Calibrated in Celsius without external circuitry.
- 5°C secure Accuracy.
- Temperature ranges from −55°C to 150°C.
- Feasible for Remote Applications.
- Less expensive Due to Wafer-Level Trimming.
- Operating range from 4 V to 30 V.
- Self-Heating is less.
- Less-Impedance Output.
Applications of LM35
There are different applications of the LM35 temperature sensors. Some of the mentioned below,
- The LM35 sensor is used for measuring the temperature of a particular environment.
- It can use as the thermal shutdown in a particular project.
- It can be used as battery protection from overheating.
- In different applications, this sensor is used for temperature measurement.
BH1750 Light Sensor
This is a digital ambient light sensor. Using the I2C protocol, we can connect it with an IoT chip and microcontroller. The sensor consists of a photodiode to sense the light. The produced electricity is proportional to light intensity.
Features
- Use the I2C communication protocol to send data to the processor.
- The spectral responsibility is similar to the human eye response.
- Need no other calculations are required to measure the light intensity.
- The sensor has an ADC converter to convert analog light intensity to the digital value.
- This sensor can measure light intensity up to the range of 65535 lx units.
Applications of BH1750
- Used in pulse sensor to measure the light intensity of the LED.
- Used in the cell phone to adjust the brightness of the screen.
- Used in the vehicle to automatically turn on/off light according to darkness.
- Used in home automation to control light intensity.
- Used in the smart street lights.
- BH1750 sensor used in industrial automation.
Process of Wi-Blue IoT board interface with sensors
The Wi-Blue IoT board’s interface with sensors and AWS cloud is shown below. Here, we use three sensors respectively temperature sensor LM35, light intensity sensor BH1750, and UART sensor. Using a groove connector, we can easily connect sensors to the board. We need to compile code and flash the file on the Wi-blue IoT board. Then, we have to switch on the hotspot of the mobile phone. Press the reset button of the Wi-blue IoT board. After reset, code will execute in the Wi-blue IoT board and the Wi-Fi of the WI-blue IoT prototype board will be on. After this process, the board will connect with the mobile hotspot or any other hotspot device.
To establish a connection between the AWS cloud server and the board, we have to use the MQTT protocol. MQTT protocol is used for wireless communication. It is easy to connect the Wi-Blue IoT board with AWS cloud using the MQTT protocol. To know how MQTT protocol works with AWS cloud, Visit AumRaj
Once the connection is established, sensor data is read by the board using a suitable interface viz. I2C, SPI, or ADC. For temperature sensor LM35, we have to use ADC protocol to read data Whereas, in light ambient sensor BH1750 case, we have to use I2C protocol to read data. After reading all these sensors’ data, Using the MQTT protocol, we can upload the data on the AWS cloud server.
AumRaj’s Wi-Blue IoT board helps to speed up the development of Wi-Fi, BLE, and IoT-based projects. The developer can easily run the code and test the Wi-Fi and BLE IoT project activities on this board. The Wi-Blue IoT board is specifically developed for innovative product development.
