The ‘Detect it!’ solution kit from Renesas Electronics is designed for detector applications and provides ready-to-use demonstrators for the most typical detectors used in security and fire protection systems. It comprises four hardware boards, a motion detector demonstrator, a smoke detector demonstrator, a carbon monoxide demonstrator and a glass-break detector demonstrator.
The kit provides a complete solution platform for Renesas’ new RL78/I1D microcontroller group. These devices offer a comprehensive set of analog features, as well as four operational amplifiers, two comparators and 17 input channels for the 12-bit ADC converter, in a small 48-pin package.
The RL78/I1D has smart peripherals that are able to work without CPU intervention and offer a significant power saving in low-power modes. The smart peripherals can transfer data, compare data, perform addition and subtraction, and link one peripheral’s operation to another peripheral.
Power consumption has been reduced compared to previous generations, achieving 124 μA @1 MHz in operation. Fast wake-up time reduces power consumption even more and enables the device to react faster; this is especially beneficial for communication protocols.
Each of the boards provides a solution for the associated detectors. The smoke detector senses smoky environments by the scattering of the infrared signal in a smoke chamber. Motion is detected using passive infrared (PIR) technology. The glass-break detector analyses sounds and can differentiate window-break sounds from the surrounding environment. The carbon monoxide detector uses a chemical sensor to measure the concentration of the gas in the surrounding air and generates an alert if the levels are dangerously high.
The documentation provided within the kit guides the user and explains each board’s behaviour in detail. Users simply choose the board and insert a battery (included in the kit), follow the quickstart guide and can get a detector working in less than one minute, according to Renesas. The kit provides a good starting point to the developer as it includes the source code of the demonstration sample programs, the environment development installer of IAR Embedded Workbench, the Gerber files and the schematics, and a comprehensive user manual.
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