User Manual

USER MANUAL V1.05
© 2013 EnOcean | www.enocean.com STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.10 | Page 10/33
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3.2 Pin out
The figure above shows the pin out of the STM 33x hardware. The pins are named accord-
ing to the naming of the EO3000I chip to simplify usage of the DOLPHIN API.
The table in section 3.3 shows the translation of hardware pins to a naming that fits the
functionality of the built-in firmware.
Energy
Store
LRN
LED
1
SET
GND
CW_1
CW_0
OCC
CP_1CP_0
LRN
VDD
Whip or helical
antenna
UVDDext
RESET
BALUN
Presence Signal
(every 100th,
every 10th,
every cyclic wake-up
or SW defined)
Spontaneous
wake-up
Cyclic Wake-up
(every 1 s ,10 s , 100 s,
or SW defined)
A/D
Power management
Micro
Controller
RF Transmitter
868.3 MHz (STM 33x)
315.0 MHz (STM 330C)
902.875 MHz (STM 33xU)
DOLPHIN
EO3000I
16MHz Oscillator
SWPWR
Energy
Storage
VCHAR
VGC
Solar Cell
LRN button
Transmit
Indicator
HSM