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Show off builds, schematics & code — then grab the exact parts used in each project.

NB

Obstacle Avoiding Rover — final chassis + code

Robotics

@neo_builder · 2h ago · ♥ 128 · 💬 24

Finished my differential rover with HC-SR04 + L298N. Schematic and Arduino sketch attached. Looking for LiDAR upgrade advice!

#Arduino #Ultrasonic #Chassis

Parts used

Arduino Uno R3 Compatible
₹9.49
HC-SR04 Ultrasonic Ranger
₹1.49
L298N Dual H-Bridge Driver
₹3.99
Acrylic Robot Chassis M
₹18.99
IM

ESP32 MQTT greenhouse node (DHT22 + OLED)

IoT

@iot_mira · 5h ago · ♥ 96 · 💬 17

Publishes temp/humidity every 30s to Home Assistant. Shared wiring diagram and MicroPython code.

#ESP32 #MQTT #DHT22

Parts used

ESP32-WROOM-32 DevKit
₹12.99
DHT22 Temp & Humidity
₹5.99
LM2596 Buck Converter
₹1.99
CL

Pi + Coral person detector for lab door

Vision

@cv_lab · 1d ago · ♥ 210 · 💬 41

SSD MobileNet on Edge TPU @ ~28 FPS. STL for camera mount included. Parts list below — buy the stack in one click.

#Raspberry Pi #Coral #OpenCV

Parts used

NVIDIA Jetson Nano DevKit
₹149.99
Google Coral USB Accelerator
₹59.99
QK

F450 build log — IMU tuning tips

Drones

@quad_kai · 2d ago · ♥ 74 · 💬 19

Got stable hover after MPU6050 filter tweaks. Sharing PID values and ESC calibration checklist.

#Quadcopter #IMU #PID

Parts used

F450 Quadcopter Frame Kit
₹49.99
MPU-6050 6-DOF IMU
₹4.49
A4988 Stepper Driver
₹2.99