Particle Photon - TCN75A Kub Sensor Tutorial: 4 Kauj Ruam

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

TCN75A yog ob txoj kab hluav taws xob ntsuas kub sib xyaw ua ke nrog ntsuas kub-rau-digital hloov pauv. Nws tau suav nrog cov neeg siv cov ntawv sau npe uas muab kev hloov pauv rau kev thov ntsuas kub. Cov chaw tso npe tso cai rau cov neeg siv teeb tsa hom kev txuag hluav taws xob, kaw lub kaw lus, ib hom kev txhaj tshuaj thiab lwm yam. Nov yog nws qhov ua piv txwv nrog particle photon.

Kauj Ruam 1: Yam Koj Xav Tau …

1. Particle Photon

2. TCN75A

3. I²C Cable

4. I²C Shield rau Particle Photon

Kauj Ruam 2: Kev Sib Txuas:

Nqa daim I2C daim ntaub thaiv rau cov photon me me thiab maj mam thawb nws hla cov pins ntawm cov khoom sib nqus.

Tom qab ntawd txuas ib kawg ntawm I2C cable rau TCN75A sensor thiab lwm qhov kawg rau I2C daim ntaub thaiv.

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

Kauj ruam 3: Code:

Cov lej me me rau TCN75A tuaj yeem rub tawm los ntawm peb qhov chaw cia khoom github- DCUBE Store.

Nov yog qhov txuas rau tib yam:

github.com/DcubeTechVentures/TCN75A/blob/master/Particle/TCN75A.ino

Peb tau siv ob lub tsev qiv ntawv rau cov lej me me, uas yog application.h thiab spark_wiring_i2c.h. Spark_wiring_i2c lub tsev qiv ntawv xav tau los pab txhawb I2C kev sib txuas lus nrog lub sensor.

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 ua haujlwm.

TCN75A

// Tus lej no yog tsim los ua haujlwm nrog TCN75A_I2CS I2C Mini Module

#suav nrog

#suav nrog

// TCN75A I2C chaw nyob yog 0x48 (72)

#define Ntxiv 0x48

ntab cTemp = 0.0, fTemp = 0.0;

int cov = 0;

void teeb tsa ()

{

// Teem sib txawv

Particle.variable ("i2cdevice", "TCN75A");

Particle.variable ("cTemp", cTemp);

// Pib I2C kev sib txuas lus raws li tus Xib Hwb

Hlau.begin ();

// Initialise serial communication, teeb baud tus nqi = 9600

Serial.begin (9600);

// Pib I2C kis tau tus mob

Wire.beginTransmission (Addr);

// Xaiv cov npe sau npe

Hlau.write (0x01);

// 12-ntsis ADC daws teeb meem

Hlau.write (0x60);

// Nres I2C kev xa mus

Wire.endTransmission ();

ncua (300);

}

void lub voj ()

{

unsigned int cov ntaub ntawv [2];

// Pib I2C kis tau tus mob

Wire.beginTransmission (Addr);

// Xaiv cov ntaub ntawv sau npe

Hlau.write (0x00);

// Nres I2C kev xa mus

Wire.endTransmission ();

// Thov 2 bytes ntawm cov ntaub ntawv

Wire.requestFrom (Addr, 2);

// Nyeem 2 bytes ntawm cov ntaub ntawv

// temp msb, kub lsb

yog (Wire.available () == 2)

{

cov ntaub ntawv [0] = Wire.read ();

cov ntaub ntawv [1] = Wire.read ();

}

// Hloov cov ntaub ntawv mus rau 12 khoom

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

yog (temp> 2047)

{

temp -= 4096;

}

cTemp = temp * 0.0625;

fTemp = (cTemp * 1.8) + 32;

// Tso tawm cov ntaub ntawv rau dashboard

Particle.publish ("Kub hauv Celsius:", String (cTemp));

Particle.publish ("Kub hauv Fahrenheit:", String (fTemp));

ncua (1000);

}

Kauj Ruam 4: Cov ntawv thov:

TCN75A yog lub ntsuas cua kub uas tuaj yeem ua haujlwm hauv lub khoos phis tawj ntiag tug thiab servers. Nws tseem tuaj yeem siv rau hauv kev lom zem, chaw ua haujlwm khoom siv, ua haujlwm nyuaj tsav thiab lwm yam khoom siv hauv PC.