Simple development support
Oberhaching, Munich, June 13, 2007
With the EVA 120 (EVA 120C for the 315 MHz North American variant) EnO-cean is offering simple development support for fast implementation of the solar-powered STM 110 sensor module (STM 110C as a 315 MHz variant for the North American market). Together with the STM 110, the EVA 120 evaluation kit comprises a complete transmitter module with power genera-tor (solar cell), energy management (ultra-low-power sleep timer and threshold detector), microcontroller, wireless transmitter and detailed tech-nical documentation including data sheet, manual and user notes.
The STM 110 sensor module, like its predecessor STM 100, was developed with the aim of creating a maintenance-free wireless device to transmit various kinds of sensor input. Its power comes from the accompanying solar cell, just 13 mm x 35 mm in size. An integrated energy accumulator ensures full functionality even after a number of days of complete darkness.
The EVA 120 evaluation kit contains an evaluation board with a PC interface and an STM 110 module. The evaluation board is intended to enable simple and speedy examination of STM 110 product features as well as development of application-specific wireless sensor products based on EnOcean technology. The major features of the evaluation kit are as follows:
- Simple powering of the STM 110 by solar cell, battery or another external power supply
- Buttons and optocoupler inputs for immediate wake-up
- Buttons to trigger a teach-in telegram
- Plug-in jumpers to set cyclic wake and transmit times and wire digital inputs
- Potentiometers to simulate analog inputs
- LED display to indicate successful telegram transmission
- RS232 or USB interface for direct evaluation by a PC and other module con-figuration
- Control inputs and measurement outputs for charge and discharge cycles
As Armin Anders, EnOcean product manager, explains: "The STM 110 module to-gether with the EVA 120 evaluation kit enables simple and very fast development of batteryless wireless sensors. With the STM 110 EnOcean has again posted a large step forwards in continuous improvement of its technology. That doesn't only apply to efficient generation of energy, of course. System architecture has also been further developed to ensure interoperability between the end-user solutions that are created."
