SparkFun Qwiic Mini dToF Imager TMF8821 Direct Time-of-Flight Sensor

SparkFun Qwiic Mini dToF Imager TMF8821 Direct Time-of-Flight Sensor

27,95 € (Net 23,49 € )

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SKU: SF19451
GTIN: 4060137076589
Category: Distance/ToF Sensor
Manufacturers: Sparkfun
MPN: SEN-19451
Storage Tiers: Maintain

The SparkFun Qwiic Mini dToFTMF8821 Imager is a direct time-of-flight (dToF) sensor that includes a single modular package with an associated Vertical Cavity Surface Emitting Laser (VCSEL) from AMS. The dToF device is based on Single Photon Avalanche Photodiode (SPAD), time-to-digital converter (TDC) and histogram technology to achieve a 5000mm detection range. Due to its lens on the SPAD, it supports 3x3, 4x4, and 3x6 multizone output data and a very wide, dynamically adjustable field of view. A multi-lens-array (MLA) inside the package above the VCSEL widens up the FoI (field of illumination). All processing of the raw data is performed on-chip and the TMF8821 provides distance information together with confidence values on its I2C interface. The high performance on-chip optical filter blocks most of the ambient light, and enables distance measurements in dark and sunlight environments.

To make it even easier to get your readings, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1”-spaced pins in case you prefer to use a breadboard. The TMF8821 offers two configurable GPIO pins and one enable (EN) pin, which are broken out as PTH pads. The board also includes a power LED and I2C pull-up resistors, each configurable via jumpers. This Mini version has a footprint that is half the size (0.5in. x 1.0in.) of our standard Qwiic Mini dToF TMF8821 Imager board. Additionally, we moved the Qwiic connectors to the back of the board. These design changes favor mounting applications where the TMF8821 sensor faces outward from an enclosure or chassis, and keeps your Qwiic cables cleanly tucked away.

This sensor is great for projects such as distance measurement for camera autofocus - Laser Detect Autofocus - LDAF (mobile phone), presence detection (computing and communication), object detection and collision avoidance (robotics), and light curtain (industrial).

Features:

Board Dimensions: 1.27cm x 2.54cm
Operating Voltage
- 2.7V to 3.6V
- (typically 3.3V via Qwiic cable)
Current Consumption
- 8µA (standby)
- 57mA (active)
AMS TMF8821 Multi-zone Time-of-Flight Sensor
- Direct ToF technology with high sensitivity SPAD detection
- 4x4 configurable multi-zone configuration with multi-object detection
- Fast Time-to-Digital Converter (TDC) architecture
- Sub-nanosecond light pulse
- On-chip histogram processing
- High performance on-chip sunlight rejection filter and algorithm
Measurement Range: 10mm to 5000mm @ 30Hz
Light Source: Class 1 940nm VCSEL
Field of View: adjustable up to 63° diagonally
Max Read Rate: up to 30Hz
2x Qwiic Connectors
I2C Address: 0x41
Operating Temperature Range
- -30°C to +70°C
Breakout Pads
- 1x Ground
- 1x Power
- 1x I2C Port
- 1x Interrupt
- 2x GPIO
- 1x Enable
Power LED (configurable via jumper)
I2C pull-ups (configurable via jumper)