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HC-SR04 Ultrasonic Module Dual Chip.
$3.50
For use with PICAXE or Aduino, the HC-SR04 is great value for sensing obstacles or distance.
Compact 7 segment LED display Common Cathode for numeric output. Easy to use with Arduino, ideal for timers, counters, and digital electronics projects.
E1305 Infra Red Reflectance Sensor Module
28BYJ-48 5V stepper motor for Arduino and robotics. Precise, low-cost motor ideal for STEM education, automation, and classroom engineering projects.
Use with E1311 ULN2003 Darlington Array.
TMP36GT9 Temperature Sensor
