Sensors

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Arduino - Distance Sensor

Small ultrasonic distance module is 1.8" X 0.8" X 0.65" Thick. Great for use with open source code logic boards. Module sends eight 40kHz square waves out, then automatically detects the returning wave. What you see in the picture is what you get. No schematic or documentation included. You can search the Internet for hundreds of how to articles for applications. Sorry, we can't provide any technical help for this item.
$5.00

Arduino - Temperature & Humidity Sensor

Small 0.64" X 0.87" digital humidity sensor operates on 5VDC. Humidity range is 20% to 90% RH. Temperature range is 0 to 50°C. What you see in the picture is what you get. No schematic or documentation included. You can search the internet for hundreds of how to articles for applications. Sorry, we can't provide any technical help for this item.
$2.50

Arduino - Passive Buzzer

Small 0.54" X 0.74" Piezo passive buzzer for hundreds of applications. Does not have built in driver electronics. What you see in the picture is what you get. No schematic or documentation included. You can search the internet for hundreds of how to articles for applications. Sorry, we can't provide any technical help for this item.
$2.50