STM300 Datasheet STM300 | P1-P2

DATA SHEET

Scavenger Transceiver Module

STM 300 / STM 300C / STM 300U

The extremely power saving RF transmitter

module STM 300 of EnOcean enables the

realization of wireless and maintenance free

sensors and actuators such as room operat-

ing panels, motion sensors or valve actua-

tors for heating control.

Power supply is provided by an external energy

harvester, e.g. a small solar cell or a thermal

harvester. An energy storage device can be con-

nected externally to bridge periods with no sup-

ply from the energy harvester. A voltage limiter

avoids damaging of the module when the supply

from the energy harvester gets too high. The

module provides a user configurable cyclic wake

up (every 1, 10 or 100 sec.). After wake up a

radio telegram (input data, unique 32 bit sensor

ID, checksum) will be transmitted in case of a

change of any digital input value compared to the

last sending or in case of a significant change of

measured analogue values (different input sensi-

tivities can be selected). In case of no relevant

input change a redundant retransmission signal is

sent after a user configurable number of wake-

ups to announce all current values. In addition a

wake up can be triggered externally.

Features

 3 A/D converter inputs

 4 digital inputs

 Configurable wake-up and transmission cycle

 Wake-up via Wake pins

 Voltage limiter

 Threshold detector

 Application notes for calculation of energy

budgets and management of external energy

storages

Product variants

 STM 300 / STM 300C / STM 300U:

SMD mountable module for use with external

antenna

Energy Harvesting made easy with

EnOcean wireless standard

STM 300 is a bidirectional system module for

maintenance-free sensor solutions based on the

EnOcean wireless standard.

Using the Dolphin API library it is possible to

write custom firmware for the module.

STM 300/C/U is in-system programmable.

Features accessible via API:

 Integrated 16MHz 8051 CPU with

32KB FLASH and 2kB SRAM

 Receiver functionality

 Various power down and sleep modes

down to 0.2 µA current consumption

 Up to 16 configurable I/Os

 10bit ADC, 8bit DAC

Type

STM 300

STM 300C

STM 300U

Ordering Code

S3001-D300

S3031-D300

S3051-D300

STM 300

STM 300C

Energy

Harvester

Sensors

LED

Energy

Storage

Buttons

Switches

Actuator

With custom firmware

DATA SHEET

Technical Data

Antenna

External whip or 50 Ω antenna mountable

Frequency

STM 300: 868.300MHz (ASK)

STM 300C: 315.000MHz (ASK)1)

STM 300U:902.875MHz (FSK)

Data rate

125 kbps

Receiver Sensitivity (at 25°C)

only via API

typ. –96 dBm

(868.300 MHz)

typ. -98 dBm

(315.000 MHz)

typ. -98 dBm

(902.875 MHz)

Conducted Output Power @50Ω

min. / typ. / max.

STM 300: 3.0 dBm / 5.7 dBm / 7.0 dBm

STM 300C: 5.5 dBm / 7.5 dBm / 9.5 dBm

Preliminary STM 300U: 5.5 dBm / 7.5 dBm / 9.5dBm

Power Supply

2.1 V–4.5 V, 2.6 V needed for startup

Current Consumption

Deep Sleep Mode: 0.2 µA

Rx mode (API only): 33 mA / Tx mode: 24 mA

Dimensions of PCB

22x19x3 mm

Input Channels

4x digital input, 2x WAKE input , 3x analog input

Resolution: 3x 8 bit or 1x 10 bit, 1x 8 bit, 1x 6 bit

Operating temperature

–25 up to +85°C

Radio Regulations

R&TTE EN 300 220 (STM 300)

FCC CFR-47 Part 15 (STM 300C / STM 300U)

1) according to ISO/IEC 14543-3-10

2) @ 0.1% telegram error rate (based on transmitted sub-telegrams)

EnOcean Dolphin System Architecture.

Open. Flexible. Expandable.

The distinguishing feature that sets Dolphin apart

from other wireless system architectures is energy

harvesting, which enables self-powered wireless

sensors and actuators. The Dolphin system architec-

ture joins the components necessary for an energy-

autonomous wireless sensor system that operates

on a standardized wireless network. These include

energy conversion and storage components,

EnOcean wireless modules for energy management,

data acquisition, data processing and wireless data

transmission, and finally the software blocks operat-

ing system, API and application programs.

As an open and expandable hardware and software

architecture, Dolphin is future-oriented and fully

backward compatible with EnOcean-enabled devices

and system components already on the market.

EnOcean modules already have extensive firmware

functionality implemented – such as basic switching,

dimming and measuring – and can go straight into

an application without additional programming. Its

built-in application functions enable straightforward

start-up and system integration.

Benefits for OEM partner

 Maintenance-free sensor solution with energy

harvesting

 Ready available and wide-ranging, interoperable

system product portfolio

 Fast implementation and time to market

 Low investment in R&D, T&M, etc

 Various evaluation tools obtainable to support

development

 EnOcean Development Kit EDK 350 for STM 300

 Technical support

 Competitive advantage over battery-powered

wireless solutions

 Participation in EnOcean's eco-system

 EnOcean is the wireless standard for sustainable

buildings

P1-P2

STM300

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Description:

RF TXRX MODULE ISM<1GHZ

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