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AM2320 Folha de dados(PDF) 13 Page - List of Unclassifed Manufacturers |
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AM2320 Folha de dados(HTML) 13 Page - List of Unclassifed Manufacturers |
13 / 27 page Retention 0x05 Device ID (24-31) Bit 0x0D Retention 0x15 Retention 0x1D Retention 0x06 Device ID (24-31) Bit 0x0E Retention 0x16 Retention 0x1E Retention 0x07 Status Register 0x0F Retention 0x17 Retention 0x1F ◎Temperature output format Temperature resolution is 16Bit, temperature highest bit (Bit15) is equal to 1 indicates a negative temperature, the temperature highest bit (Bit15) is equal to 0 indicates a positive temperature; temperature in addition to the most significant bit (Bit14 ~ Bit0) indicates the temperature sensor string value. Temperature sensor value is a string of 10 times the actual temperature value. ◎Status Register Status Register, Bit7-Bit0 bit, temporarily reserved Status register bits Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Features Retention Retention Retention Retention Retention Retention Retention Retention ◎I 2 C Mod Bus Function Code Description 1. Function code "03": Read registers multiplexed sensor The host sends reading frame format: START + (I 2 C address + W) + function code (0x03) + start address + number of registers + STOP Host read return data: START + (I 2 C address + R) + sequential read sensor data returned + STOP Sensor response frame format: Function code (0x03) + number + data +CRC ] 1 [ For example: Host sequential read sensor data: the starting address for the register data of four sensors 0x00. Sensor data register address and data: Register Address Register data Data Description Register Address Register data Data Description 0x00 0x01 High humidity 0x02 0x00 High temperature 0x01 0XF4 Low humidity 0x03 0xFA Low temperature Host message format sent: The host sends Byte count Transmitting information Remarks Sensor address 1 0xB8 Sensor C address (0xB8) + W (0) Function Code 1 0x03 Read register Starting address 1 0x00 Register start address is 0x00 - 12 - |
Nº de peça semelhante - AM2320 |
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Descrição semelhante - AM2320 |
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