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參數(shù)資料
| 型號(hào)： | 30770 |
| 廠商： | Dresden Elektronik |
| 文件頁(yè)數(shù)： | 26/74頁(yè) |
| 文件大?。?/td> | 2001K |
| 描述： | SET DERFNODE FOR AVR HOUSING |
| 標(biāo)準(zhǔn)包裝： | 1 |
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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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