Arduino based Security gateway with Ethernet, MQTT, RFM69, RS485, RTC, balaced PIR inputs ...Designed by OpenHomeSecurity in Czechia
OHS is open Arduino based burglar alarm and automation platform. It can work as new alarm gateway, or it can replace your old alarm panel. OHS can use any wired 12V sensor, PIR, smoke or reed switc...Read More…
OHS is open Arduino based burglar alarm and automation platform. It can work as new alarm gateway, or it can replace your old alarm panel. OHS can use any wired 12V sensor, PIR, smoke or reed switch. It has Web interface that is used to set it up. OHS has GSM modem that is able to send SMS or page you. It has radio interface for environmental sensors. OHS is self-contained, it does not need any cloud service, only optional SMTP server for emails, or MQTT to publish collected sensor data.
Gateway board consists of ATmega1284P that has inputs for sensors and outputs to relays. It also hosts Wiz5500 Ethernet for configuration and overview, RFM69HW for radio remote nodes, communication module to wired nodes (RS485 protocol), GSM modem, Battery backed up RTC, EEPROM for log, I2C expansion connector, and AC supply and battery monitoring.
Gateway board has 8 analogue/balanced inputs that can recognize different events on PIR sensors, and 5 digital inputs. Inputs can be further expended.
Remote nodes act as authentication units or sensors. Currently they are set to receive iButtons as keys to arm/disarm the system.
Main gateway board:
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