DFRobot
Gravity: UART OBLOQ – IOT Module (Microsoft Azure)
If you still don’t know how to play Internet of Things (IoT), the DFRobot OBLOQ module will be ideal for connecting you to the IoT world. The core of Io...
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If you still don’t know how to play Internet of Things (IoT), the DFRobot OBLOQ module will be ideal for connecting you to the IoT world.
The core of IoT is user experience. It integrates embedded system technology, mobile technology and network technology all together, making up a smart system. It unifies hardware, software and network services, makes them become a whole. Gravity: UART OBLOQ module is a WiFi to Serial device. It faces to non-professional developers, supports standard MQTT protocol IOT service such as Microsoft Azure IOT. By OBLOQ module, you can quickly build the IoT applications without having a complex background knowledge of IoT. In this way, makers can really focus on the purpose of creating interesting things on the IoT.
OBLOQ is designed based on ESP8266 WiFi chip, it has compact size, low price, simple interface, plug and play feature, and it works stably under the 3.3V ~ 5V control system.
Below is the connection diagram of Arduino UNO and OBLOQ.
Microsoft Azure IOT
Microsoft Azure IoT
FEATURES
- Built-in low-power 32-bit CPU: Can be used as an application processor
- Built-in protocol: TCP / IP stack
- Encryption type: WPA WPA2 / WPA2-PSK
- Supports connections to standard MQTT protocols and TTL serial ports to wireless applications
SPECIFICATION
- Operating Voltage: 3.3-5V
- Supply Voltage: 3.3 ~ 5.5V
- Baud rate: 9600 bps
- Wireless Frequency: 2.4GHz
- Interface Type: Gravity UART 4PIN
- Wireless mode: IEEE802.11b / g / n
- SRAM: 160KB
- External Flash: 4MB
- Supports low power consumption: <240mA
- Dimension: 35mm * 32mm / 1.38inch * 1.26inch
- Weight: 16g
DOCUMENTS
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- MQTT
- A lightweight messaging protocol often used for IoT devices to publish and receive data through a server called a broker. It matters for home automation and sensor networks because it is simple, efficient, and widely supported.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
- TTL serial
- A simple serial data connection that uses microcontroller logic-level voltages (typically 3.3 V or 5 V) rather than the higher, inverted voltages of computer RS-232. When a device lists TTL serial, it can usually wire straight to a microcontroller's UART pins or to a USB-to-TTL serial adapter, but it needs a level converter before connecting to a true RS-232 port.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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