Raspberry Pi and more by András Zsitko

Month: June 2016

Kindle 4 Ad blocking

I got an ad-supported version Kindle 4 as a gift, but the ads bothered me, so I’ll show how to remove them.

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Temperature/humidity sensor DHT22 (AM2302) using AdafruitDHT

Home automation projects often there is a need to measure the temperature and humidity of the air. This can be done with e.g. the DHT11 or the more advanced DHT22 sensors.

The AM2302 is a wired version of the DHT22, in a large plastic body. There is a 5.1K resistor inside the sensor connecting VCC and DATA so you do not need any additional pullup resistors. Here’s how to make it work.

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