Žitko András

Tag: home automation

433Mhz RF Remote Control with pilight on Raspberry Pi

I have a set of SilverCrest IP20 remote controlled sockets purchased in LIDL.

Remote: SilverCrest 113854 RCT DS1 AAA-A 3726
4x Switches: SilverCrest 113854 RCR DS1 3711-A IP20 FR 3726

These work on 433Mhz radio frequency, so the switches can be controlled using my Raspberry Pi instead of the remote control which came with the set.

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Temperature/humidity sensor 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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Bash scripting pilight-send raw codes sending on Raspberry Pi

In one of the previous posts I have shown how to control the socket’s with pilight and an RF transmitter.

Since the pilight protocol which will be able to control my outlets (quigg_gt9000) is not finished yet, I wrote a simple command which sniffs out the raw codes (with pilight-debug) and a bash script to use send these raw codes to control the outlets (with pilight-send).

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