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Small green circuit board 24.6 by 14.5 mm with sensor chip and two mounting holes

GODIYMODULES MAX30105 Particle Optical Sensor Module

SKU CH-XZAH-85F1C

Compact particle-sensing module with integrated LEDs and photodetectors for smoke detection, communicating over I2C at 5V

  • In the box1PCS
  • High-accuracy particle detection with integrated MAX30105 optical sensor
  • I2C interface simplifies microcontroller integration
  • Compact 24.6×14.5 mm board fits space-constrained designs
  • Operates reliably from -40 °C to +85 °C
  • On-board pull-up resistors reduce external component count

Compact I2C Particle Sensor Module

The GODIYMODULES MAX30105 module integrates LEDs, photodetectors and low-noise electronics into a 24.6 by 14.5 millimetre board. It communicates over an I2C interface at DC 5V and includes two M3 mounting holes for secure installation. On-board pull-up resistors simplify wiring for microcontroller projects.

Suits air-quality and safety prototypes

Developers building smoke detection, flame sensing or particle monitoring systems can embed this module in fixed or wearable designs. Its operating range of -40°C to +85°C supports harsh environments. Projects that require analogue output, wireless connectivity or a different supply voltage will need alternative hardware.

Key specification: I2C interface at 5 V

The module exposes VCC, GND, SCL, SDA and an active-low INT pin, all referenced to a 5 V logic level. This single electrical characteristic determines whether the sensor can connect directly to a target controller or requires level-shifting circuitry.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 81% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameGODIYMODULES
Part numberMod-MAX30105-001
In the box
In the box1PCS

Questions about this item

Which MAX30105 module variant should I pick for a compact smoke detector build?

Only the Mod-MAX30105-001 variant is offered; it measures 24.6 by 14.5 mm and includes two M3 mounting holes for tight enclosures

What does the 5 V operating voltage mean when the sensor is installed in a microcontroller project?

The board runs directly from a 5 V supply and exposes VCC, GND, SCL, SDA and an active-low INT pin with on-board pull-ups

How does the IIC interface limit data rate and cable length in practice?

IIC communication is used for register access and sample streaming; the module integrates pull-up resistors so no external resistors are required

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