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saburi-naik edited this page Oct 5, 2026 · 1 revision

PERTINENT INFORMATION

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Part | Qty | Mechanisms

-- | -- | --

ESP32 | 1 | Reads sensors, runs the control logic

LDR (photoresistor) or LM393 LDR module | 2 | Light sensing; modules add a comparator and digital output [17]

10 k ohm resistors | 2 | Fixed leg of each LDR voltage divider (not needed for modules)

L298N dual H-bridge motor driver | 1 | Drives two DC motors; see [10], [11]

DC gear motors with wheels | 2 | Differential drive

Caster / ball wheel and chassis | 1 set | Mechanical base

Battery pack (6-9 V) | 1 | Motor and board power

Jumper wires, breadboard | - | Connections

REFERENCE LINKS

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Title / Source No. Link
Arduino Light Following Robot With LDR. Instructables. [1] https://www.instructables.com/Arduino-Light-Following-Robot-With-LDR/
Light Following Robot Using Arduino. Instructables. [2] https://www.instructables.com/Light-Following-Robot-Using-Arduino/
Simple Light Following Robot using Arduino UNO. CircuitDigest. [3] https://circuitdigest.com/microcontroller-projects/light-following-robot
Basic Arduino Robot, Light Seeker!. Instructables. [4] https://www.instructables.com/First-Arduino-Robot-Light-Seeker/
Basic Arduino Robot, Light Seeker!. Make It @ Your Library. [5] https://makeitatyourlibrary.org/technology/basic-arduino-robot-light-seeker
Arduino Light Tracking Robot with LDR. Hackster.io. [6] https://www.hackster.io/marketingmanagerofdattabanur/arduino-light-tracking-robot-with-ldr-d19ed7
Arduino Light Tracking Robot with LDR. Hackaday.io. [7] https://hackaday.io/project/179335-arduino-light-tracking-robot-with-ldr
Arduino Nano KY-018: Build a Light-Following Robot. ShillehTek. [8] https://shillehtek.com/blogs/news/arduino-nano-ky-018-light-following-robot
Arduino Based Light Following Robot with LDR Sensor. QuartzComponents. [9] https://quartzcomponents.com/blogs/electronics-projects/light-chasing-robot
L298N Motor Driver Module (component reference). components101. [10] https://components101.com/modules/l293n-motor-driver-module
L298N Dual H-Bridge Motor Driver - Datasheet/User Guide. Handson Technology. [11] https://ece4873y202008.ece.gatech.edu/sd20f27/L298N-Datasheet.pdf
BEAM robotics. Wikipedia. [12] https://en.wikipedia.org/wiki/BEAM_robotics
Miniature Light Tracking BEAM Robot. Hackster.io (news). [13] https://www.hackster.io/news/miniature-light-tracking-beam-robot-6020b229a453
Light-Tracking BEAM Robot Head. Instructables. [14] https://www.instructables.com/Light-Tracking-BEAM-Robot-Head/
What are BEAM Bots?. Digi-Key Maker.io. [15] https://www.digikey.com/en/maker/blogs/2019/what-are-beam-bots
Tiny Solar-Powered Light-Seeking BEAM Bot (mini photopopper). jpralves.net. [16] https://jpralves.net/post/2021/09/30/tiny-solar-powered-light-seeking-beam-bot-mini-photopopper.html
LDR Light Sensor Module (LM393) - vendor/specification listings. Probots / Robu / Zbotic. [17] https://probots.co.in/ldr-sensor-module.html

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