Many projects needs keypads, the common 4×4 keypad has sixteen keys (hex input). To construct this…
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Accelerometer sensor arduino schematics
The accelerometer is a MEMS sensor, it measures acceleration in two different units including meters per…
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Gyroscope L3G4200D arduino schematic
L3G4200D the triple axis gyroscope is one of the MEMS sensor, this sensor is inexpensive and…
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Proximity (GP2Y0A21YK ) distance Sensor with Arduino
The IR (Infra Red) proximity sensor or distance sensor has two elements one is IR emitter…
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Humidity Sensor with Arduino
For humidity and temperature reading the DHT22 sensor will be…
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Photocell (LDR) Sensor with Arduino
LDR (light depended resistor) or photocell sensor, when the light falls on this sensor resistance across…
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PIR Sensor with Arduino
The PIR (Passive Infrared) sensor widely used for motion detection applications. This is suitable for low…
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