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TIDA-010077

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

Design files

TIDA-010077

Design files

Overview

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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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-010077
TIDUET2.PDF (3902 K)

Reference design overview and verified performance test data

download Schematic — TIDA-010077
TIDM204.ZIP (391 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-010077
TIDM205.ZIP (55 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — TIDA-010077
TIDM206.ZIP (141 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-010077
TIDM208.ZIP (2783 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-010077
TIDCFM6.ZIP (1164 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-010077
TIDM207.ZIP (645 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Proximity sensors

OPT3101 — ToF-based long-range proximity and distance sensor analog front end (AFE)

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

LM2664 — 1.8-V to 5.5-VIN switched capacitor voltage inverter

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV702 — 300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR2476 — 16 MHz MCU with 64KB FRAM, 8KB SRAM, comparator, 12-bit ADC, UART/SPI/I2C, timer

Data sheet: PDF | HTML
RGB LED drivers

TLC59283 — 16 channel constant current LED driver with pre-charge FET

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* Design guide Obstacle, Cliff Detection and Stuck Prevention All-In-One Reference Design Sep. 25, 2019

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