The PTM 210 radio transmitter module from EnOcean enables the implementation of wireless remote controls without batteries, as power is provided by a built-in electrodynamic power generator.
The electrodynamic energy transducer is actuated by a bow which can be pushed from outside the device by an appropriate pushbutton or switch rocker. When the energy bow is pushed down, electrical energy is created and an RF telegram is transmitted including a 32-bit device ID.
Releasing the energy bow generates different telegram data, so every PTM telegram contains the information that the bow was pressed or released.
Long or short pushbutton operation (the time between pushing and releasing the pushbutton) can be easily detected by the receiver. By doing that, applications such as dimming control or blinds control including slat action are simple to implement.
In addition, the PTM telegram transmits the operating status of the contact nipples when pressing the bow. This enables the identification of up to two appropriate switch rockers or up to four pushbuttons.
The module operates at 868,3 MHz and integrates the required antenna, achieving a transmission range of 300 m free-field or 30 m indoors. Total number of operations at 25°C is typically 100 000 actuations.
Key applications are wall-mounted flat rocker switches with one or two rockers (with medial position), as well as handheld remote controls with up to four single pushbuttons.
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