SparkFun Qwiic dToF Imager - TMF8820

SKU: SEN-19036

The SparkFun Qwiic dToF TMF8820 Imager is a direct time-of-flight sensor that includes a single modular package with an associated VCSEL...

$27.70 AUD, inc GST

$25.18 AUD, exc GST

Available with a lead time
Expect dispatch between May 01 and May 05

Quantity Discounts:

10+ $24.43 (exc GST)
25+ $23.93 (exc GST)

The SparkFun Qwiic dToF TMF8820 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 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 TMF8820 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, Sparkfun still have broken out 0.1”-spaced pins in case you prefer to use a breadboard. The TMF8820 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 version has a footprint that uses the Qwiic Standard size (1.0in. x 1.0in.). For a smaller footprint, check out our Qwiic Mini dToF TMF8820 Imager board!

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).

Note: CLASS 1 LASER PRODUCT CLASSIFIED IEC 60825-1 2014.

Important: Sparkfun recommend a microcontroller with enough flash to run your program code. Sorry, Uno's (or any development board using the ATmega328P) are out. Sparkfun recommend choosing either an Artemis Thing Plus, ESP32 Thing Plus, or comparable device as your development board.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

Get Started with the Qwiic dToF TMF882X Hookup Guide

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
- 3x3 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)
Board Dimensions: 1.0" x 1.0" (2.54cm x 2.54cm)

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