BESTSELLER
THE PREMIER MAKER STORE · GOPALGANJ
Ideas don't
build themselves.
Gopalganj's own local store for authentic electronic components, robotics kits, and ready-made project builds at student-friendly prices with same-day doorstep delivery.
2–4 Hr Gopalganj Dispatch 100% Pre-Tested Hardware Free Source Code & Support
Wi-Fi Robot Car · Ready to Drive
UNO R3 · Atmega328P
HC-SR04 · Sonar Radar
✦ 100% Pre-Tested in Gopalganj
⚡2–4 Hr DeliveryGopalganj District Hub
✓100% Tested PartsZero dead components
💻Free Project CodeWorking .ino & wiring diagrams
🤝Cash on Delivery & UPIPay at your doorstep
01 / WORKBENCH ESSENTIALS
All 66 components Explore by category.
High quality parts organized for students, hobbyists and competitive science fair projects.
02 / TRENDING COMPONENTS
Browse all 66 components Popular on the bench.
Authentic studio photography of actual components available in stock at Gopalganj.
STUDENT PICK
ESP8266 NodeMCU
The world's favorite budget Wi-Fi development board for connected electronics.
₹279₹349
BESTSELLER
HC-SR04 Ultrasonic Sensor
Measure distance from 2cm to 400cm for obstacle avoidance and robotics.
₹89₹129
CRISP DISPLAY
OLED Display (I²C)
0.96 inch 128x64 high contrast display showing real-time graphics and sensor readouts.
₹249₹329
BESTSELLER
TOP CHOICE
L298N Motor Driver
Dual H-bridge driver module capable of driving two DC motors or one stepper.
₹159₹210
POPULAR
Soil Moisture Sensor
Fork-style probe and comparator board to monitor soil dryness in plant projects.
₹79₹110
HOT
PIR Motion Sensor HC-SR501
Pyroelectric infrared sensor detecting human movement up to 7 meters away.
₹119₹169
03 / READY-MADE & DIY ROBOTICS KITS
Explore all 40 projects Build big ideas. Small first steps.
From smartphone-controlled Wi-Fi cars to smart dustbins and robotic arms. Complete kits shipped with pre-flashed code, batteries, chassis, and step-by-step video guidance.
SCIENCE FAIR #1
Line Following Robot Car
High accuracy robot car that follows black/white line paths using IR sensors.
₹1,199₹1,599
ESP8266 WIFI
Wi-Fi Controlled Car
High-speed Wi-Fi connected robot car with NodeMCU web interface and camera support.
₹1,699₹2,199
POPULAR
Bluetooth Controlled Car
Drive a 4WD chassis from any Android/iOS smartphone via custom Bluetooth app.
₹1,399₹1,799
BESTSELLER
Obstacle Avoiding Robot
Autonomous intelligent rover that navigates obstacles using an ultrasonic radar turret.
₹1,299₹1,699
4-DOF SERVO
TOP SCHOOL KIT
Smart Dustbin
Touchless hygienic dustbin that opens lid automatically when a hand approaches.
₹799₹999
LOCAL SPEED · DOORSTEP SERVICEGOPALGANJ DISTRICT, BIHAR
Serving all 14 blocks of
Gopalganj District.
No waiting 5 to 7 days for couriers from Delhi or Bengaluru. Get genuine, 100% bench-tested microcontrollers, sensors, motors, and robotics kits delivered right to your home, school, or college.
LIVE COURIER RADARDispatch Hub: Main Road, Gopalganj
Selected: Gopalganj Sadar Block
Popular builds here: Line Follower, Arduino UNO Kits
ESTIMATED ARRIVAL1–2 HoursFree delivery on orders ₹499+
Confirm Delivery in Gopalganj Sadar via WhatsApp
✓ Pay Cash on Delivery or UPI·✓ 100% Tested Before Rider Dispatches
100% Workbench Pre-Tested
Every Arduino board, sensor, motor driver and IC is verified on our bench with test sketches before dispatch. Zero dead-on-arrival components.
Free Ready-to-Flash Source Code
Get tested Arduino C++ (.ino) code, library ZIPs and pinout connection diagrams delivered directly to your WhatsApp with every purchase.
Direct Maker WhatsApp Support
Stuck on a wiring error or compile bug? Get direct 1-on-1 audio/video call debugging help from founder Suraj Kumar.
Local Doorstep COD & UPI
Inspect your hardware parcel at your doorstep first, then pay easily via Google Pay, PhonePe, Paytm, or Cash.
COMMUNITY TRUST · REAL MAKERSLoved by students & builders
Loved by students & builders
across Gopalganj.
Real feedback from over 500+ polytechnic students, school science exhibition champions, and curious hobbyists across all 14 blocks of Gopalganj.
Scroll right to view more→
★★★★★5.0
🏆 1st Prize Winner“Mera school me science exhibition tha. Suraj bhaiya ne same day Line Follower kit deliver kar diya aur pura code samjha diya. We won 1st prize in our school exhibition! Thank you Techsunidea!”
Built:Line Following Robot Car Kit
★★★★★5.0
⚡ 100% Tested ICs“Components ki quality bahut solid hai. Online mangwane par 1 hafta lagta tha aur kabhi kabhi sensor kharab nikalta tha. Yaha sab tested mila aur price bhi cheap hai. Project ek hi baar me chal gaya!”
Built:ESP8266 Wi-Fi Robot Car
★★★★★5.0
🚀 2-Hr Doorstep Dispatch“Hathua me doorstep delivery bas 2 ghante me ho gayi! Soil moisture sensor aur mini pump ekdam sahi se chal raha hai. Suraj bhaiya ka WhatsApp guidance super helpful tha.”
Built:Smart Plant Irrigation System
★★★★★5.0
🥇 School Exhibition“Humne science fair ke liye Touchless Smart Dustbin banaya tha. Ultrasonic sensor aur servo motor ka connection diagram itna simple tha ki maine aur mere dost ne 45 minutes me assemble kar liya!”
Built:Touchless Smart Dustbin Kit
★★★★★5.0
✓ Genuine Hardware“ESP32 and motor driver mangwaya tha for surveillance bot. Testing report sath me aayi thi and genuine Espressif chip thi. Patna jane ki zaroorat nahi padi, local Gopalganj me hi mil gaya.”
Built:ESP32 Surveillance Robot
★★★★★5.0
🔥 Zero Heating Issue“Bhai maine pehle doosri badi website se mangwaya tha toh duplicate fake L298N bhej diya jo turant jal gaya. Techsunidea se liya toh heavy heat sink wala original module mila. Car mast bhaag rahi hai!”
Built:Bluetooth 4WD Controlled Car
★★★★★5.0
🏫 School Lab Partner“Our students needed 12 sets of Arduino UNO starter kits for the district STEM exhibition. Delivered within 3 hours directly to school lab. Every single board was pre-tested with blink sketch.”
Built:12x Arduino Starter Kits
★★★★★5.0
⚙️ ITI Workshop Tested“775 high speed motor aur 18650 battery holder chahiye tha DIY drill machine ke liye. Market se 30% sasta mila aur motor ka torque ekdam solid hai. Delivery rider bhi bohot polite tha.”
Built:775 High-Speed DC Motor
★★★★★5.0
💡 Video Call Support“Automatic street light project ke liye LDR aur 5V relay module order kiya tha. WhatsApp pe video call karke Suraj sir ne wiring verify karwai. Exhibition me sab teacher tareef kar rahe the.”
Built:Automatic LDR Street Light
★★★★★5.0
📦 Same-Day Baikunthpur“Baikunthpur me same-day delivery milegi mujhe vishwas nahi tha, par sham 5 baje delivery rider ghar pe aa gaya! Cash on delivery deke package liya. Very honest and quick service in Bihar.”
Built:Dual-Axis Solar Tracker Kit
★★★★★5.0
🤖 Weekend Build Fun“Obstacle Avoiding Robot car ka kit liya tha. Ultrasonic radar aur chassis bilkul perfect fit hue. My brother and I built it on Sunday using the free code from website. Best practical learning experience!”
Built:Obstacle Avoiding Radar Rover
★★★★★5.0
🔐 Working .ino Code“RFID Attendance system ka project tha. RC522 reader aur 16x2 I2C display ekdam smoothly chal raha hai. Code me library mismatch thi toh inhone instant WhatsApp pe working ZIP library bheja.”
Built:RFID Security Access System
★★★★★5.0
🌦️ IoT Cloud Sync“NodeMCU weather station with 0.96 inch OLED display. Live temperature aur humidity mobile pe dikh raha hai. Gopalganj me aisa tech store hona hamare district ke liye proud moment hai.”
Built:IoT Weather Station with OLED
★★★★★5.0
💰 Super Cheap & Genuine“MQ-2 gas sensor aur active buzzer se kitchen fire alarm banaya. School me 1st runner up aaye. Cost bas ₹250 aayi, jabki ready-made 1500 ka milta tha! Every student should buy from here.”
Built:MQ-2 Gas & Flame Alarm
04 / CODE & DOCUMENTATION
Explore 33 resources Code is only the beginning.
Get project-ready Arduino sketches, wiring diagrams, PowerPoint presentations, and print-ready project report PDFs for your school or college science exhibition.
GOOD TO KNOWQuestions before
Questions before
you order?
Quick answers about doorstep delivery, payment methods, and project guidance in Gopalganj.
Read all FAQsHow fast is doorstep delivery in Gopalganj?
For Gopalganj Sadar, Thawe, Hathua, Mirganj, and Kuchaikote, we dispatch via local express courier within 2 to 4 hours of order confirmation. For all other blocks, orders deliver same day!
Can I pay via Cash on Delivery (COD) or UPI?
Yes! You can pay cash or scan Google Pay / PhonePe / Paytm UPI QR code directly upon receiving your components at your doorstep.
Do project kits include working code and circuit diagrams?
Yes! Every DIY kit and ready-made robot comes with complete working Arduino/ESP32 code, pinout wiring diagrams, and direct WhatsApp support from Suraj Kumar.
Are components tested before delivery?
Every single board, sensor, and motor is verified on our test bench before packaging so you never have to deal with dead or defective components.