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create a high level mermaid block diagram of U3. Include key component's manufac...
2y
To create a high-level block diagram of component U3 (BH1750FVI-TR) in the Mermaid syntax, we'll focus on highlighting the main functions and connections based on the information provided in your project description. Note that the BH1750FVI-TR, manufactured by Rohm Semiconductor, is a digital light sensor IC.
Here's a simplified Mermaid block diagram that represents U3's connections and functions:
Explanation of the Diagram:graph TD; A["VCC (BH1750FVI-TR)"] -->|Power Supply| B((BH1750FVI-TR)) B -.->|I2C Interface| C["SDA (Serial Data)"] B -.->|I2C Interface| D["SCL (Serial Clock)"] B -->|ADDR Pin| E["ADDR (Address Select)"] B --> F["GND (Ground)"] E -.->|Optional for Address| G[Not Connected or To GND/VCC]; classDef block fill:#f9f,stroke:#333,stroke-width:2px; class B block;
- VCC: Represents the power supply to U3.
- BH1750FVI-TR: Is the core block representing the BH1750FVI-TR IC.
- SDA and SCL: Illustrate the IC's I2C interface for data communication. In I2C communication, these lines are used for serial data (SDA) and serial clock (SCL) functions.
- ADDR (Address Select): Demonstrates the address select pin which can be used to change the I2C address of the device. This is particularly useful when multiple I2C devices are connected to the same bus.
- GND (Ground): Shows the ground connection for U3.
- Not Connected or To GND/VCC: Indicates the ADDR pin might not be connected, or it can be connected to GND or VCC depending on the desired I2C address.
This diagram abstracts the detailed operation of U3 into a representation suitable for understanding its basic connectivity and function within your project.
2y
2
how connect GND 1 to nano?
2y
To connect the ground (GND) from one of the components listed as GND (for example, GND of U2 or U3) to the Arduino Nano (U1), you should follow these steps:
- Identify the GND pins of the components involved:
- For U2 (BME280), GND pins are 1 and 7.
- For U3 (BH1750FVI-TR), the GND pin is 3.
- For U1 (Arduino Nano), the GND pins are referenced as COM/GND and COM/GND__1, which correspond to pins 4 and 29.
Given the common practice of connecting all ground pins together in a circuit to ensure they share a common reference point, you can connect any of these GND pins from U2 or U3 to any of the GND pins on the Arduino Nano (U1). Here is a concise way to do it:
- Connect U2:1 (GND) or U2:7 (GND) or U3:3 (GND) to U1:4 (COM/GND) or U1:29 (COM/GND__1).
This will ensure that all components share a common ground. For example:
- Connect U2:1 to U1:4, ensuring U2 (BME280) is grounded with the Nano.
- Connect U3:3 to U1:29, ensuring U3 (BH1750FVI-TR) is also grounded with the Nano.
You can choose any of these GND connections based on your layout convenience and routing simplicity.
2y
4
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