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Raspberry Pi Light Dependent Resistor Circuit - Unlike some other devices the Raspberry Pi does not have any analogue inputs, not so great if you want to use a sensor that doesn’t. For sensors that act as a variable resistor such as LDRs (Light Dependent Resistors) or thermistors (temperature sensors) there is a simple solution. It allows you to measure a number of levels using a single GPIO pin. In the case of a light sensor  this allows you to measure different light levels.

Raspberry Pi Light Dependent Resistor Circuit - Unlike some other devices the Raspberry Pi does not have any analogue inputs, not so great if you want to use a sensor that doesn’t. For sensors that act as a variable resistor such as LDRs (Light Dependent Resistors) or thermistors (temperature sensors) there is a simple solution. It allows you to measure a number of levels using a single GPIO pin. In the case of a light sensor this allows you to measure different light levels.

Quantum radar could detect stealth cancer cells or aircraft | A prototype “quantum radar” that has the potential to detect objects that are invisible to conventional systems has been developed by an international research team at the University of York.

Quantum radar could detect stealth cancer cells or aircraft | A prototype “quantum radar” that has the potential to detect objects that are invisible to conventional systems has been developed by an international research team at the University of York.

Product how-to: Heart rate monitor using a programmable SoC | EDN

Product how-to: Heart rate monitor using a programmable SoC | EDN

U Series - Slot Photoelectric Sensor

U Series - Slot Photoelectric Sensor

Pitotrör

Pitotrör

Klimatinstrument

Klimatinstrument

CO-mätare

CO-mätare

tryckmätare

tryckmätare

temperaturmätare

temperaturmätare

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