I²C device

ROHM BH1750

The ROHM BH1750 is an I²C device in the LabWired part catalog. Its catalog type is bh1750. It connects to the MCU over I²C at the default address 0x23. The catalog gives a supply range of 2.4–3.6 V. It has 4 pins. A registered peripheral model runs in the engine: the firmware talks to it over the real bus and gets device-accurate responses.

From the catalog: Declarative I²C kit — model is core/configs/devices/bh1750.yaml (GenericI2cDevice), no per-part Rust.

Key facts

Category	I²C devices
Catalog type	`bh1750`
Interface	I²C
Default I²C address	`0x23` (35 decimal)
Supply range	2.4–3.6 V
Pins	4
Datasheet	ROHM BH1750FVI datasheet

What LabWired simulates

What is simulated

Simulated device model

How it was validated

Built from the datasheet. Implemented from the part’s register documentation and exercised by automated tests. Nothing physical was ever placed next to it.

ROHM BH1750 pinout

Power: VCC, GND
I²C: SDA, SCL

Pin	Electrical type	Function
`VCC`	Power input	Supply
`GND`	Power input	Supply
`SDA`	Open-drain	I²C data (SDA)
`SCL`	Open-drain	I²C clock (SCL)

How to simulate the ROHM BH1750 in LabWired

Open the Playground at app.labwired.com and place an MCU board.
Add the ROHM BH1750 (catalog type bh1750).
Connect VCC and GND to the supply and ground of the board. Use a supply inside the catalog range of 2.4–3.6 V.
Connect SDA and SCL to the I²C data and clock pins of the board.
Run the firmware. It finds the part on the I²C bus at 0x23 and reads and writes it as on hardware.

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