Raw Materials for robotics & stem labs in Kolkata

2.54 mm jumper wires in rainbow ribbon, tear off as needed. For breadboards, dev boards and modules.

Full-size breadboard with power rails and sticky back. Snap several together for bigger circuits.

Breakaway male and female header strips for modules and boards. Gold-flash contacts.

Gold-plated high-current plugs for LiPo packs, ESCs and e-bike batteries. Sold as male+female pairs.

Classic 8-bit board with USB, 14 digital pins and shield headers. Standard for classes and first prototypes.

Dual-core Wi-Fi and Bluetooth board with USB, ready for breadboards. Common base for IoT pilots.

Two-transducer sonar module for obstacle and level sensing. 5 V, trigger/echo pins.

Heater-type gas sensor on a breakout with analog and digital out, for LPG, smoke, alcohol or CO alarms.

10 A relay boards with LED and opto-isolation to switch lights, pumps and locks. Price shown for 4-channel.

Drives two DC motors or one stepper up to 2 A per channel. Used in robot cars and small conveyors.

Hall-effect or shunt-type breakouts to log current, voltage and power in batteries, solar and motors.

Small hobby servo for robot arms, grippers, pan-tilt heads and STEM models. 4.8–6 V.

Balanced polycarbonate props for FPV and light drones. Carbon fold props for big frames on quote.

Male-female and female-female standoffs to mount PCBs in cases and stack boards.

Even-diameter filament for prototypes, jigs and enclosures. Vacuum-packed with desiccant.

Interlocking screw terminals for power and sensor wires on PCBs. Rated 300 V, 16 A.

Threaded metal connectors for sensors, motors and panel wiring. 2–8 pins, panel plug + socket pair.

Tinned copper wire for internal wiring and breadboards. Solid or stranded, 90 m roll.

Corrosion-resistant capacitive probe with analog out. Lasts far longer in soil than bare fork probes.

Bar-type strain gauge load cell with 24-bit amplifier board for weighing scales, bins and test rigs.

42 mm stepper for 3D printers, CNC plotters, camera sliders and lab automation. 4-wire bipolar.

Anodised extrusion for robot frames, test jigs, 3D printers and camera rigs. Cut to length.

6 mm GT2 belt (5 m) with two 20-tooth pulleys and idlers for printers, plotters and sliders.

Laser-cut friendly acrylic for robot bases, display covers and enclosures. Paper masked both sides.

Acrylic or metal chassis with geared motors, wheels and battery holder. Base for line followers.

Credit-card size Linux computer with Wi-Fi, HDMI and GPIO for gateways, kiosks, vision and robots.

Matched motors for FPV, mapping and light multirotors. Price per motor for 2207 class.

F4/F7/H7 boards with gyro, barometer and OSD for open-source flight firmware.

Multi-band GPS with magnetometer for position hold, return-home and mapping missions.

8–16 channel radio with receiver and telemetry for drones, rovers and robots.

Discharge-rated LiPo packs with XT60/XT90 and balance lead. Price for 4S 1500 mAh. Agri packs on quote.