Jaewook Shin / Mbed 2 deprecated SCH_MME_sensor_test

SCH MME sensor test

Dependencies:   mbed Adafruit_GFX

mlx90615.cpp@0:28c89a4b6b69, 2019-11-06 (annotated)

Committer:
shinshingo
Date:
Wed Nov 06 09:05:08 2019 +0000
Revision:
0:28c89a4b6b69
SCH MME L432KC Mbed Sensor Test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shinshingo 0:28c89a4b6b69 1
shinshingo 0:28c89a4b6b69 2 #include "mlx90615.h"
shinshingo 0:28c89a4b6b69 3
shinshingo 0:28c89a4b6b69 4
shinshingo 0:28c89a4b6b69 5
shinshingo 0:28c89a4b6b69 6
shinshingo 0:28c89a4b6b69 7 MLX90615::MLX90615(I2C* i2c,int addr){
shinshingo 0:28c89a4b6b69 8
shinshingo 0:28c89a4b6b69 9 this->i2caddress = addr;
shinshingo 0:28c89a4b6b69 10 this->i2c = i2c;
shinshingo 0:28c89a4b6b69 11
shinshingo 0:28c89a4b6b69 12 }
shinshingo 0:28c89a4b6b69 13
shinshingo 0:28c89a4b6b69 14
shinshingo 0:28c89a4b6b69 15 bool MLX90615::getTemp(float* temp_val){
shinshingo 0:28c89a4b6b69 16
shinshingo 0:28c89a4b6b69 17 char ch1, ch2;
shinshingo 0:28c89a4b6b69 18 char cmd[3];
shinshingo 0:28c89a4b6b69 19
shinshingo 0:28c89a4b6b69 20 cmd[0] = 0x27;
shinshingo 0:28c89a4b6b69 21 cmd[1] = 0;
shinshingo 0:28c89a4b6b69 22 cmd[2] = 0;
shinshingo 0:28c89a4b6b69 23
shinshingo 0:28c89a4b6b69 24 i2c->stop();
shinshingo 0:28c89a4b6b69 25 wait_us(5);
shinshingo 0:28c89a4b6b69 26 ch1 = i2c->write(0xb6, cmd, 1, true);
shinshingo 0:28c89a4b6b69 27 if (ch1 != 0) {return false;}
shinshingo 0:28c89a4b6b69 28 ch2 = i2c->read(0xb7, cmd, 3);
shinshingo 0:28c89a4b6b69 29 if (ch2 != 0) {return false;}
shinshingo 0:28c89a4b6b69 30 wait_us(5);
shinshingo 0:28c89a4b6b69 31
shinshingo 0:28c89a4b6b69 32 *temp_val = ((((cmd[1]&0x007f)<<8)+cmd[0])*0.02)-273.15;
shinshingo 0:28c89a4b6b69 33 return true;
shinshingo 0:28c89a4b6b69 34
shinshingo 0:28c89a4b6b69 35 }
shinshingo 0:28c89a4b6b69 36
shinshingo 0:28c89a4b6b69 37 bool MLX90615::getTempAmbient(float* temp_val){
shinshingo 0:28c89a4b6b69 38
shinshingo 0:28c89a4b6b69 39 char ch1, ch2;
shinshingo 0:28c89a4b6b69 40 char cmd[3];
shinshingo 0:28c89a4b6b69 41
shinshingo 0:28c89a4b6b69 42 cmd[0] = 0x26;
shinshingo 0:28c89a4b6b69 43 cmd[1] = 0;
shinshingo 0:28c89a4b6b69 44 cmd[2] = 0;
shinshingo 0:28c89a4b6b69 45
shinshingo 0:28c89a4b6b69 46 i2c->stop();
shinshingo 0:28c89a4b6b69 47 wait_us(5);
shinshingo 0:28c89a4b6b69 48 ch1 = i2c->write(0xb6, cmd, 1, true);
shinshingo 0:28c89a4b6b69 49 if (ch1 != 0) {return false;}
shinshingo 0:28c89a4b6b69 50 ch2 = i2c->read(0xb7, cmd, 3);
shinshingo 0:28c89a4b6b69 51 if (ch2 != 0) {return false;}
shinshingo 0:28c89a4b6b69 52 wait_us(5);
shinshingo 0:28c89a4b6b69 53
shinshingo 0:28c89a4b6b69 54 *temp_val = ((((cmd[1]&0x007f)<<8)+cmd[0])*0.02)-273.15;
shinshingo 0:28c89a4b6b69 55 return true;
shinshingo 0:28c89a4b6b69 56
shinshingo 0:28c89a4b6b69 57 }
shinshingo 0:28c89a4b6b69 58
shinshingo 0:28c89a4b6b69 59 bool MLX90615::getRawIR(int16_t* ir_val){
shinshingo 0:28c89a4b6b69 60
shinshingo 0:28c89a4b6b69 61 char ch1, ch2;
shinshingo 0:28c89a4b6b69 62 char cmd[3];
shinshingo 0:28c89a4b6b69 63 uint16_t temp;
shinshingo 0:28c89a4b6b69 64
shinshingo 0:28c89a4b6b69 65 cmd[0] = 0x25;
shinshingo 0:28c89a4b6b69 66 cmd[1] = 0;
shinshingo 0:28c89a4b6b69 67 cmd[2] = 0;
shinshingo 0:28c89a4b6b69 68
shinshingo 0:28c89a4b6b69 69 i2c->stop();
shinshingo 0:28c89a4b6b69 70 wait_us(5);
shinshingo 0:28c89a4b6b69 71 ch1 = i2c->write(0xb6, cmd, 1, true);
shinshingo 0:28c89a4b6b69 72 if (ch1 != 0) {return false;}
shinshingo 0:28c89a4b6b69 73 ch2 = i2c->read(0xb7, cmd, 3);
shinshingo 0:28c89a4b6b69 74 if (ch2 != 0) {return false;}
shinshingo 0:28c89a4b6b69 75 wait_us(5);
shinshingo 0:28c89a4b6b69 76 temp = (uint16_t)((cmd[1]<<8)|cmd[0]);
shinshingo 0:28c89a4b6b69 77 if(temp & 0x8000) *ir_val = ~((int16_t)(temp & 0x7fff))+1;
shinshingo 0:28c89a4b6b69 78 else *ir_val = (int16_t)temp;
shinshingo 0:28c89a4b6b69 79 return true;
shinshingo 0:28c89a4b6b69 80
shinshingo 0:28c89a4b6b69 81 }