Raspberry Pi - TMP100 Kub Sensor Python Qhia: 4 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

TMP100 High-Accuracy, Low-Power, Digital Kub Sensor I2C MINI module. TMP100 yog qhov zoo tshaj rau kev ntsuas kub ntxiv. Cov cuab yeej no muab qhov tseeb ntawm ± 1 ° C yam tsis tas yuav ntsuas qhov ntsuas lossis sab nrauv tiv thaiv teeb liab. Nov yog qhov ua piv txwv nrog tus nab npawb nab npawb siv Raspberry Pi.

Kauj Ruam 1: Yam Koj Xav Tau..

1. Raspberry Pi

2. TMP100

3. I²C Cable

4. I²C Shield rau Raspberry Pi

5. Ethernet Cable

Kauj Ruam 2: Kev Sib Txuas:

Siv I2C daim thaiv rau raspberry pi thiab maj mam thawb nws hla gpio pins ntawm raspberry pi.

Tom qab ntawd txuas ib qho kawg ntawm I2C cable rau TMP100 sensor thiab lwm qhov kawg rau I2C daim ntaub thaiv.

Kuj txuas Ethernet cable rau pi lossis koj tuaj yeem siv WiFi module.

Kev sib txuas tau qhia hauv daim duab saum toj no.

Kauj ruam 3: Code:

Tus nab npawb nab npawb rau TMP100 tuaj yeem rub tawm los ntawm peb GitHub chaw cia khoom- Dcube Store.

Nov yog qhov txuas rau tib yam:

github.com/DcubeTechVentures/TMP100…

Peb tau siv SMBus lub tsev qiv ntawv rau sej code, cov kauj ruam rau nruab SMBus ntawm raspberry pi tau piav qhia ntawm no:

pypi.python.org/pypi/smbus-cffi/0.5.1

Koj tseem tuaj yeem luam cov cai los ntawm no, nws tau muab raws li hauv qab no:

# Faib nrog daim ntawv tso cai yuav dawb.

# Siv nws txhua txoj hauv kev uas koj xav tau, muaj txiaj ntsig lossis pub dawb, muab nws haum rau hauv daim ntawv tso cai ntawm nws cov haujlwm sib txuam.

# TSO 100

# Txoj cai no tau tsim los ua haujlwm nrog TMP100_I2CS I2C Mini Module muaj nyob hauv Dcube Store

#

ntshuam smbus

lub sij hawm ntshuam

# Tau I2C npav

npav = smbus. SMBus (1)

# TMP100 chaw nyob, 0x4F (79)

# Xaiv kev teeb tsa sau npe, 0x01 (01)

# 0x60 (96) Kev hloov pauv tas li, hom sib piv, 12-ntsis kev daws teeb meem

bus.write_byte_data (0x4F, 0x01, 0x60)

sijhawm.s pw (0.5)

# TMP100 chaw nyob, 0x4F (79)

# Nyeem cov ntaub ntawv rov qab los ntawm 0x00 (00), 2 bytes

# temp MSB, temp LSB

cov ntaub ntawv = bus.read_i2c_block_data (0x4F, 0x00, 2)

# Hloov cov ntaub ntawv mus rau 12-ntsis

temp = (data [0] * 256 + (data [1] & 0xF0)) / 16

Yog tias kub> 2047:

temp -= 4096

cTemp = temp * 0.0625

fTemp = cTemp * 1.8 + 32

# Cov ntaub ntawv tso tawm rau lub vijtsam

luam tawm "Kub hauv Celsius yog: %.2f C" %cTemp

luam tawm "Kub hauv Fahrenheit yog: %.2f F" %fTemp

Kauj Ruam 4: Cov ntawv thov:

Ntau daim ntawv thov suav nrog TMP100 lub zog qis, qhov tseeb cov ntsuas hluav taws xob suav nrog Lub Hwj Huam Saib Xyuas Kub Kub, Khoos phis tawj Ib puag ncig tiv thaiv cua sov, Kev tswj roj teeb nrog rau lub tshuab ua haujlwm.