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参数资料
| 型号： | EVAL.BH1721FVC |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR BH1721FVC |
| 特色产品： | Ambient Light Sensor ICs |
| 标准包装： | 1 |
| 传感器类型： | 环境光 |
| 接口： | I²C |
| 灵敏度： | 560nm |
| 电源电压： | 2.4 V ~ 3.6 V |
| 嵌入式： | 否 |
| 已供物品： | 2 板，CD |
| 已用 IC / 零件： | BH1721 |
BH1721FVC
● Measurement sequence example from "Write instruction" to "Read measurement result"
ex1) Continuously Auto-resolution mode
Technical Note
from Master to Slave
① Send "Continuously Auto-resolution mode " instruction
from Slave to Master
ST
0100011
0
Ack
00010000
Ack
SP
② Wait to complete 1st
Auto-resolution mode measurement.( max. 180ms )
③ Read measurement result.
ST
0100011
1
Ack
High Byte [ 15:8 ]
Ack
Low Byte [ 7:0 ]
Ack
SP
+ 2 9 + 2 8 + 2 7 + 2 4 ) / 1.2 ≒ 28067 [ lx ]
(2
How to calculate when the data High Byte is "10000011" and Low Byte is "10010000"
15
The result of continuously measurement mode is updated.
ex2) Continuously L-resolution mode
① Send " Continuously L-resolution mode " instruction
ST
0100011
0
Ack
00010011
Ack
SP
② Wait to complete L-resolution mode measurement.( max. 24ms )
③ Read measurement result
ST
0100011
1
Ack
High Byte [ 15:8 ]
Ack
Low Byte [ 7:0 ]
Ack
SP
( 2 + 2 ) / 1.2 ≒ 227 [ lx ]
How to calculate when the data High Byte is "00000001" and Low Byte is "00010000"
8 4
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
7/15
2011.11 - Rev.B
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相关代理商/技术参数 |
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| EVALBOARD | 制造商:STMicroelectronics 功能描述:EVALBOARD - Bulk |
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