Product Descriptions
Supply voltage: 3-5V
Power supply current: 7mA
Wiring:
Red... VCC
Black... GND
Yellow... RC (Half Port UART TTL-Rx/I2C.. SCL)
Self color... TD (half port UART TTL Tx/I2C.. SCL)
The module defaults to serial UART mode and automatically outputs data. When the PS solder joints on the PCB are soldered, it is in I2C mode.
1. Module internal registers:
| 0x00(Reading and writing) |
器件 ID 地址 Device ID address |
1~254;0為廣播地址;默認(rèn)為ID:0xA4，與8位 ⅡC 地址相同，所以該地址必須為2的倍數(shù)。 1~254; 0 is the broadcast address; The default ID is 0xA4, which is the same as the 8-bit IIC address, so this address must be a multiple of 2. |
| 0x01(Reading and writing) |
波特率設(shè)置 Baud rate setting |
0-7:2400 4800 9600 19200,38400,57600.115200,230400 |
| 0x02(Reading and writing) |
更新速率 Update rate |
0: 1hz;1:2hz;2:5hz;3:10hz |
| 0x03(Reading and writing) |
輸出模式 Output mode |
0:連續(xù)輸出;1:查詢輸出 0: Continuous output; 1: Query output |
| 0x04(Reading and writing) |
輸出格式 Ooutput format |
0:十六進制;1:字符; 0: Hexadecimal system; 1: Characters; |
| 0x05(Reading and writing) |
保存設(shè)置 Save Settings |
0x55:保存當(dāng)前配置;0xAA:恢復(fù)出廠設(shè)置 0x55: Save current configuration; 0xAA: Factory reset |
| 0x06(Reading and writing) |
TO off溫度偏移 TO off temperature offset |
0-255，默認(rèn)值100=0偏移，TO補償= (TO_off-100)/10 0-255, default value 100=0 offset, TO compensation= (TO_off-100)/10" |
| 0x07(Reading and writing) |
E 發(fā)射率 E emissivity |
1~100(對應(yīng) 0.01~1.00) |
| 0x08(Read) |
TO(目標(biāo)溫度)高8位 TO (target temperature) high by 8 digits |
0~255 |
| 0x09(Read) |
TO(目標(biāo)溫度)低8位 TO (target temperature) is 8 digits lower |
0~255 |
| 0x0a(Read) |
TA(環(huán)境溫度)高8位 TA (ambient temperature) high by 8 digits |
0~255 |
| 0x0b(Read) |
TA(環(huán)境溫度)低8位 TA (ambient temperature) is 8 digits lower |
0~255 |
| 0x0c(Read) |
BO高8位 BO high 8 digits |
0~255 額溫轉(zhuǎn)換體溫值高8位 0-255 forehead temperature conversion with a body temperature value 8 digits higher |
| 0x0d(Read) |
BO低8位 BO low 8 digits |
0~255 額溫轉(zhuǎn)換體溫值高8位 0-255 forehead temperature conversion with a body temperature value 8 digits higher |
| 0x0e(Reading and writing) |
芯片型號 Chip model |
0~3 |
| 0x0f(Read) |
固件信息 Firmware information |
0~255 |
Serial port function (send/receive mode):
Frame description:
|
地址 Address |
功能碼 Function code |
數(shù)據(jù) Data |
校驗和 Checksum |
| 1 byte | 1 byte | N byte |
前字節(jié)校驗和低8位 The lower 8 bits of the first byte checksum |
2. Module support function code:
|
寫單個寄存器 Preset Single Register |
0x06 |
|
讀寄存器 Read Register |
0x03 |
3. Module response time
|
波特率=9600 Baud rate=9600 |
約為 10ms |
|
波特率=115200 Baud rate=115200 |
約為 1ms |
IIC function:
This function requires welding PS solder joints. The IIC address is the value of the 00 register, with a default of 4. The IIC rate needs to be less than 400K.
The number of registers written in a single module is 1. Write the timing sequence as follows, which requires more than 4us of time after sending the device address
| Start | Address | ACK | reg | ACK | Data | ACK | Stop |
|
起始 Start |
0XA4 |
模塊 Module |
0x07 |
模塊 Module |
0x57 |
模塊 Module |
結(jié)束 End |
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