Sensors

There are a multitude of sensors for various physical efffects. Check eBay for more. Most are between $1.00 and $5.00 and ship from china in about 2-3 weeks.

 

pir-motion-sensor-200px 12v-pir-relay-200px Passive Infra Red motion Sensors (PIR)

touch-sensor-200pxTouch Sensor Capacitive Switch Module TTP223B

 

ir-reflective-sensor--a-200pxir-reflective-sensor-200px2-channel-avoidance-200px

Infrared  Reflective Proximity Sensor Modules

water-level-sensor
water-level-sensor  
ky-023-joystick-axis-sensor
ky-023-joystick-axis-sensor  
hc-sr04-ultrasonic-distance-sensor
hc-sr04-ultrasonic-distance-sensor  
dht11-temp-humidity-sensor
dht11-temp-humidity-sensor  
mq9-gas-sensor
mq9-gas-sensor  
mq-3-ethanol-sensor
mq-3-ethanol-sensor  
mq2-gas-sensor
mq2-gas-sensor  
3-axis-sensor
3-axis-sensor  
ky-008-laser-transmitter
ky-008-laser-transmitter  

 

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