We built this chassis for the makers who want to skip the tedious trial-and-error of structural design and jump straight to the Big Deal. It’s a reliable custom platform that gives your custom hardware the structure it needs.
The Techgeeks LFR Chassis is a modular ecosystem. From custom PCB trays to adjustable geometry, it adapts to your specific hardware stack. Whether you are running our ARC series or third-party sensors like Robojunkies, this frame ensures everything stays exactly where it belongs. Just plug in your motors, battery, PCB and sensor, and you have a competition-ready machine.
PCB Tray Options
◘ Robot controller board (FROM TECHGEEKS)
◘ 6x5 cm
(IDEAL FOR CUSTOM MEDIUM-SIZED PCBs/ROBOJUNKIES PCBs)
◘ 7x5 cm
(IDEAL FOR LARGE SIZED PCBs)
Sensor Options
◘ Techgeeks sensor arrays (8/16)
◘ RoboJunkies sensor arrays (5/7/8/16)
◘Qtr 8 sensor (RED)
◘Universal mount
(ANY SENSOR)
ACCESSORIES
PACKED COMPONENTs
Good things come in small packages, and inside of
this you will find everything you need to get your
line follower up and running. Both hardware and
software included.
◘ The Mark 1 LFR is a compact, high performance line follower robot built around the ATmega328P microcontroller using the Arduino Nano platform operating at 16 MHz and 5V logic level.
◘ The robot is powered by a 2S LiPo battery (7.4V / 11.1V). A dual channel TB6612FNG motor driver enables efficient PWM based speed control of the high RPM DC N20 gear motors, providing smooth acceleration and sharp turning capability.
◘ It features an 8 Channel IR Sensor Array (ARC8) to detect contrast between black and white surface. It is equipped with 2 wheel drive system combined with high traction rubber wheels that provide stability.
◘ The frame is a lightweight 3D printed chassis (PLA+/PETG). With an approximate weight of 140–160 grams and compact dimensions, it is optimized for speed, agility and competition performance that make the Mark 1 both beginner friendly and competition ready.
◘ Precision Line Tracking
◘ Smooth Corner Handling
◘ Real-Time Feedback System
SOFTWARE AND PROCESSING
◘ The Mark 1 LFR follows a structured control flow defined in setup() and loop(). On startup, the system waits for the left button press to initiate calibrate(). During calibration, the robot rotates using motorControl(100, -100) while recording minimum and maximum sensor readings.
◘ After pressing the right button, the robot enters run mode. In loop(), the readLine() function continuously reads and normalizes sensor data, identifying active sensors and determining whether the line is detected (onLine).
◘ If the line is present, linefollow() calculates positional error using weighted sensor inputs. A PID correction (using kp and kd) generates PIDvalue, which adjusts speedA and speedB around the defined robotSpeed. Speeds are constrained before being applied through motorControl().
◘ If the line is lost, recovery logic applies directional correction based on the last known error. This ensures stable tracking, smooth steering, and responsive real time control.
COLOR, MATTE
AND FINISH
Available in four color options, The matte chassis paired with high-traction rubber wheels and cleanly integrated components, delivering a cohesive, durable, and competition-ready finish.
*All the media present are for visual representation purposes only, actual product may vary.
Reviews (0)
01
What is Advanced Suction Chassis?
02
How can i use the Advanced Suction Chassis for my line follower?
03
Is it suitable for Line Follower competitions?
04
Can TechGeeks products be used for schools or institutions?
05
What is Techgeeks?
06
Do you offer support after purchase?
07
Do you ship across India?
08
How long does delivery take?
09
Do you ship internationally / overseas?
