ky-021 MINI MAGNETIC REED SWITCH MODULE

The KY-021 Magnetic Reed Switch module is a switch that is normally open and gets closed when exposed to a magnetic field, sending a digital signal. Commonly used in mechanical systems as proximity sensors.


Code and information
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KY-039 Heartbeat Sensor
   • KY-039 Heartbeat Sensor  

ky-032 INFRARED OBSTACLE AVOIDANCE
   • ky-032 INFRARED OBSTACLE AVOIDANCE  

ky-031 KNOCK SENSOR
   • ky-031 KNOCK SENSOR  

ky-027 MAGIC LIGHT CUP MODULE
   • ky-027 MAGIC LIGHT CUP MODULE  

ky-026 FLAME SENSOR MODULE
   • ky-026 FLAME SENSOR MODULE  

ky-025 REED SWITCH MODULE
   • ky-025 REED SWITCH MODULE  

ky-024 LINEAR MAGNETIC HALL MODULE
   • ky-024 LINEAR MAGNETIC HALL MODULE  

ky-023 DUAL AXIS JOYSTICK
   • ky-023 DUAL AXIS JOYSTICK  

ky-022 INFRARED RECEIVER
   • ky-022 INFRARED RECEIVER  

ky-021 MINI MAGNETIC REED SWITCH MODULE
   • ky-021 MINI MAGNETIC REED SWITCH MODULE  

ky-020 TILT SWITCHS
   • ky-020 TILT SWITCHS  

ky-018 PHOTORESISTOR
   • ky-018 PHOTORESISTOR  

ky-017 MERCURY TILT SWITCH
   • ky-017 MERCURY TILT SWITCH  

ky-016 RGB FULL COLOR LED MODULE
   • ky-016 RGB FULL COLOR LED MODULE  

015 TEMPERATURE AND HUMIDITY SENSOR MODULE
   • 015 TEMPERATURE AND HUMIDITY SENSOR M...  

ANALOG TEMPERATURE with OLED
   • KY-013 ANALOG TEMPERATURE with OLED  

KY-012 BUZZER & KY-006 PASSIVE BUZZER MODULE
   • KY-012 BUZZER  & KY-006 PASSIVE BUZZE...  

KY-011 TWO COLOR LED MODULE
   • KY-011 TWO COLOR LED MODULE  

010 PHOTO INTERRUPTER MODULE
   • 010 PHOTO INTERRUPTER MODULE  

KY-004 KEY SWITCH MODULE
   • KY-004 KEY SWITCH  MODULE  

ky-003 Hall magentic
   • ky-003 Hall magentic  

ky-003 Hall magentic
   • ky-003 Hall magentic  


KY-002 VIBRATION SWITCH MODULE
   • KY-002 VIBRATION SWITCH MODULE  

001 temperature sensor module with Oled display
   • 001 temperature sensor module with Ol...  


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