DFRobot
DFRobot AS7341 11-Channel Visible Light Sensor-Breakout
This compact breakout uses the AMS AS7341 spectral sensor IC to measure colour across multiple visible-light bands. It is designed for projects that need mor...
Get notified when back in stock
This compact breakout uses the AMS AS7341 spectral sensor IC to measure colour across multiple visible-light bands. It is designed for projects that need more detail than a basic RGB colour sensor, with channels covering the visible spectrum plus near-IR and an unfiltered channel.
The board includes 6 independent 16-bit ADC channels for parallel data processing, along with a dedicated ambient light flicker detection channel. Two extra-bright on-board LEDs can provide illumination when measuring in darker environments.
It communicates over I2C and is suited to high accuracy colour detection and matching, colour mixing checks, lighting colour temperature adjustment, lighting atmosphere control and modern plant cultivation. DFRobot also provides a product wiki and a related spectrophotometer project based on this sensor.
Features:
- 8 optical channels covering the visible spectral range
- 50Hz and 60Hz ambient light flicker detection
- 6 independent 16-bit ADC channels
Specifications:
- Power Supply: 3.3V~5V
- Visible Light Detection Range: F1(405-425nm), F2(435-455nm), F3(470-490nm), F4(505-525nm), F5(545-565nm), F6(580-600nm), F7(620-640nm), F8(670-690nm)
- Operating Current(LED Off): <5mA
- LED Driving Current: Class 1-20 (4-42mA)
- I2C Address: 0x39
- Operating Temperature Range: -30℃~85℃
- Operating Humidity Range: 5%RH~85%RH
- Dimension: 18*14mm/0.71*0.55”
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- AS7341
- The AS7341 is a multi-channel spectral light sensor chip from ams that measures light intensity across several visible colour bands plus clear and near-infrared channels, typically communicating over I2C. It is used for colour sensing and spectral measurement.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- flicker detection
- Flicker detection measures rapid changes in light output, such as the pulsing from some LEDs or mains-powered lamps. This matters if you are characterising light sources or need to avoid lighting that may interfere with measurements or cameras.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- I2C address
- An I2C address is the number a device uses so a microcontroller can tell it apart from other devices on the same I2C bus. It matters because two devices with the same fixed address may conflict if used together.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
Find this product in
Sensors & Input
Supplier page — dfrobot.com
Supplier Description · 520.2 KB · Click any page to view full size
CE Certificate
Compliance · 613.0 KB · Click any page to view full size
RoHS Certificate
Compliance · 650.5 KB · Click any page to view full size
AS7341 Sensor Board Dimensions
Mechanical Drawings · 50.5 KB · Click any page to view full size
AS7341 Sensor Board Schematics
Schematic · 162.0 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
