SparkFun Humidity Sensor Breakout - HIH-4030 SF_Sensor Kits Infrared proximity sensor made by

Infrared proximity sensor made by Sharp

this electromagnet can be applied to DIY electromagnetic lock

including an ethernet PHY

Control inputs

SparkFun Humidity Sensor Breakout - HIH-4030 SF_Sensor Kits Infrared proximity sensor made byThis is a breakout board for Honeywell\'s HIH 4030 humidity sensor. The HIH 4030 measures relative humidity (%RH) and delivers it as an analog output voltage. You can connect the output of the sensor directly to an ADC on a microcontroller; and, thanks to the sensor\'s near linear voltage output, the data is very easy to process. Voltage applied to the supply pins should be within 4 5. 8VDC, and optimally at 5V. The sensor will typically only consume