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參數資料
型號: 30770
廠商: Dresden Elektronik
文件頁數: 26/74頁
文件大小: 2001K
描述: SET DERFNODE FOR AVR HOUSING
標準包裝: 1
User Manual
Version 1.1
2011-07-15
 
  deRFnode and deRFgateway
 
 
 
 
dresden elektronik
ingenieurtechnik gmbh
Enno-Heidebroek-Str. 12
12 7 Dr
n
rm  n
Tel.: +49 351  31 85 00
Fax: +49 351  3 18 50 10
wireless@dresden-elektronik.de
www. r
n- l k r nik.
Page 26 of 56
 
8.1.    Onboard sensors
Both platforms are assembled with onboard sensors: temperature, ambient light and accel-
eration. All sensors are accessible over two-wire-interface of deRFnode and deRFgateway.
The device addresses are noted in the following subsections. The data and clock lines are
assembled with 10k pull-up resistors [R22] and [R23].
 
TWI clock:    Pin 7
TWI data:     Pin 9
 
8.1.1. Temperature sensor
The temperature sensor TMP102AIDRLT communicates over two-wire-interface with the mi-
crocontroller of the radio module. Details of operation are described in the datasheet.
 
TWI address: 1001 000 (R/W)
Write:
R/W = 0
Read:
R/W = 1
 
Figure 13: Temperature sensor TMP102AIDRLT
 
8.1.2. Ambient light sensor
The assembled ambient light sensor ISL29020IROZ-T7 communicates over two-wire-
interface with the microcontroller of the radio module. Details of operation are described in
the datasheet.
 
TWI address: 1000 100 (R/W)
Write:
R/W = 0
Read:
R/W = 1
 
Figure 14: Ambient light sensor ISL29020IROZ-T7
 
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