Obstacle, cliff detection and stuck prevention all-in-one reference design for robotic applications
TIDA-010077
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Key Document

Description

Obstacle avoidance, cliff detection, stuck prevention and wall follow are all necessary features for robotic systems. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems to achieve these features and solve the problem of universal IR solution which is quite sensitive to ambient and object color by a single proximity and distance sensor analog front end (AFE) (OPT3101) with three external near-infrared (NIR) LEDs and one photodiode.

Features
  • Three NIR emitters can be configured for different functions: Cliff detection, obstacle avoidance, stuck prevention and wall follow
  • Detection range up to 1.5 meters without a lens for obstacle avoidance
  • Adaptive high dynamic range (HDR) enables the detection range to be short enough for cliff detection and stuck prevention
  • ToF-based sensing AFE (OPT3101) makes measurements insensitive to object color and reflectivity and supports operation under high ambient light conditions (outdoor)
  • Direct distance measurement output with an accuracy of 5%

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM2664  1.8V to 5.5Vin Switched Capacitor Voltage Converter  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2476  16 MHz ultra-low-power microcontroller with 64 KB FRAM, 8 KB RAM, 12-bit ADC, 43 IO, 5 16-bit timers  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
OPT3101  ToF-based long-range proximity and distance sensor analog front end (AFE)  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TLC59283  16 Channel Constant Current LED Driver with Pre-Charge FET  LED drivers  Sample & Buy View Design Kits & Evaluation Modules
TLV702  300mA Low-Iq Low-Dropout (LDO) Regulator for Portables  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPD2E001  Low-Capacitance 2-Channel +/-15kV ESD Protection Array for High-Speed Data Interfaces  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM2664 Download Download
MSP430FR2476 Download Download
Download Download
Download Download
OPT3101 Download Download
TLC59283 Download
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TLV702 Download Download
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TPD2E001 Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 3802 25 Sep 2019
Design files (6)
Title Type Size (KB) Date
ZIP 1164 25 Sep 2019
ZIP 2783 25 Sep 2019
ZIP 645 25 Sep 2019
ZIP 141 25 Sep 2019
ZIP 55 25 Sep 2019
ZIP 391 25 Sep 2019
Related Tools & Software

Software (1)



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