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Distance dToF Imager - TMF8821 (SparkFun Qwiic Mini)

Distance dToF Imager - TMF8821 (SparkFun Qwiic Mini)

The SparkFun Qwiic Mini dToF TMF8821 Imager is a compact and highly accurate direct time-of-flight (dToF) sensor, ideal for distance measurement applications. It features a VCSEL-based laser, SPAD detection, and supports multizone measurements. Designed with AMS TMF8821, it provides reliable readings up to 5000mm and integrates seamlessly via I2C using SparkFun’s Qwiic system—making it solderless and easy to use for robotics, gesture control, and more.

Package Includes

  • 1 x SparkFun Qwiic Mini dToF Imager - TMF8821

169.00 AED 169.00 AED Tax Included
169.00 AED Tax Included

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Features

  • Direct Time-of-Flight (dToF) Technology: Uses SPAD detection for precise distance measurement.
  • Wide Measurement Range: Detects distances from 10mm to 5000mm.
  • Multizone Detection: Configurable 3x3, 4x4, and 3x6 zones for detecting multiple objects.
  • On-chip Histogram Processing: Supports reliable measurements under various lighting conditions.
  • I2C Communication: Supports the SparkFun Qwiic ecosystem with plug-and-play ease.
  • Configurable GPIO Pins: Includes 2 GPIOs, enable pin, and interrupt output.
  • Adjustable Field of View: Up to 63° diagonal FOV.
  • Compact Design: Small footprint (0.5" x 1.0") for embedded projects.
  • Ambient Light Support: Operates in both dark and bright environments.

Specifications

  • Operating Voltage: 2.7V to 3.6V (typically 3.3V)
  • Current Consumption: 8µA (standby), 57mA (active)
  • Sensor: AMS TMF8821
  • Multizone Configurations: 3x3, 4x4, 3x6
  • Measurement Range: 10mm to 5000mm
  • Light Source: Class 1 940nm VCSEL
  • Field of View: Up to 63° diagonal
  • Max Read Rate: 30Hz
  • I2C Address: 0x41
  • Connectors: 2x Qwiic Connectors
  • Operating Temperature: -30°C to +70°C
  • Breakout Pads: GND, 3.3V, SDA, SCL, INT, GP0/SYNC, GP1, EN
  • LEDs and Jumpers: Power LED, configurable I2C pull-ups
  • Board Dimensions: 1.27cm x 2.54cm (0.5" x 1.0")

Pinout

Pin Description Direction
GND Ground In
3.3V Power In
SDA Data In/Out
SCL Clock In/Out
INT Interrupt goes low when data is ready Out
GP0/SYNC General purpose I/O or sync input. Sync signal disables VCSEL briefly. In/Out
GP1 General purpose input/output In/Out
EN Enable pin (active high). Pulling low shuts down device In

Applications

  • Distance and object detection
  • Robot navigation and obstacle avoidance
  • Gesture and motion recognition
  • Presence detection and automation

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