Cheap tweeting RFID home security/automation system V1.5

CONCEPT One of the first things we bought when we founded our hackerspace was a cheep RFID access control system. The original plan was just to connect it to an electric lock on the door and access the space whithout a traditional key. We soon realised that the stuff in our space is not cheap […]

USB aliases – Multiple USB to UART devices on OpenWRT

If you want to add multiple Arduino or other USB to UART devices to your Openwrt router you will need to symlink them so that the devices don’t mix up while the router reboots. Our objective is to symlink /dev/ttyUSB0, /dev/ttyUSB1 … to /dev/device0, /dev/device1… In our example we will use a setup with an […]

DIY “meteo” WiFi stanica

Izdradite vlastitu wireless “meteo” stanicu, kojoj mozete pristupiti preko WiFi koneckije, putem racunala/smartphonea/tableta. Temperatura se ocitava i ispisuje na webstranici svakih 60 sekundi.  Cijeli sklop se sastoji od 3 elementa 1.  Wireless ruter TP-Link WR703N (20-25 $) 2. USB – Serial adapter CP2102 (1-2 $) 3. temperaturni senzor DALLAS DS18B20 (1-2 $) Postupak izrade mozete […]