thibault lottin
td1
Dependencies: lib_LCD_i2c_SPTLYI mbed
Revision 0:dca3b291558e, committed 2014-10-23
- Comitter:
- mbedo
- Date:
- Thu Oct 23 09:42:24 2014 +0000
- Commit message:
- tp1_exo1
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib_LCD_i2c_SPTLYI.lib Thu Oct 23 09:42:24 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/YSI/code/lib_LCD_i2c_SPTLYI/#a805daa83dd0
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/lib_SHT/lib_SHT11.cpp Thu Oct 23 09:42:24 2014 +0000
@@ -0,0 +1,262 @@
+#include "lib_SHT11.h"
+
+
+SHT11::SHT11(PinName pin_DATA, PinName pin_SCK, float T_C_mesure) : DATA_HT(pin_DATA), SCK_HT(pin_SCK), Temps_cycle_mesure(T_C_mesure)
+{
+ if(Temps_cycle_mesure < 2) Temps_cycle_mesure = 2;
+ init();
+}
+
+void SHT11::start(void)
+{
+ DATA_HT.output();
+ DATA_HT=1;
+ SCK_HT=0;
+// wait_us(1);
+ SCK_HT=1;
+// wait_us(1);
+ DATA_HT=0;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ SCK_HT=1;
+// wait_us(1);
+ DATA_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ DATA_HT=0;
+}
+
+void SHT11::changer_timer_cycle(float new_Temps_cycle_mesure)
+{
+ if(new_Temps_cycle_mesure < 2) Temps_cycle_mesure = 2;
+ else Temps_cycle_mesure = new_Temps_cycle_mesure;
+ if(etat_cycle) desactiver(); init();
+}
+
+void SHT11::init(void)
+{
+// ____________________________________________
+// DATA |__
+// __ __ __ __ __ __ __ __ __
+// SCK_HT _| |_| |_| |_| |_| |_| |_| |_| |_| |_
+ unsigned char i;
+ DATA_HT.output();
+ DATA_HT=1;
+ SCK_HT=0;
+ for (i=0;i<9;i++)
+ {
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ }
+ etat_sht11=0;
+ etat_cycle=1;
+ Timer_cycle_mesure.attach(this, &SHT11::gestion_HT, Temps_cycle_mesure);
+}
+
+void SHT11::desactiver(void)
+{
+ etat_cycle=0;
+ Timer_cycle_mesure.detach();
+}
+
+void SHT11::demande_mesure(short octet_de_commande)
+{
+ unsigned int i;
+
+ DATA_HT.output();
+ for(i=0;i<8;i++)
+ {
+ if ((octet_de_commande)&(0x80)) DATA_HT=1;
+ else DATA_HT=0;
+// wait_us(1);
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+ octet_de_commande=octet_de_commande*2;
+ }
+ DATA_HT.input();
+// wait_us(1);
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ DATA_HT.output();
+ DATA_HT=1;
+ DATA_HT.input();
+}
+
+void SHT11::mesure_T(void)
+{
+ start();
+ demande_mesure(3);
+}
+
+void SHT11::mesure_H(void)
+{
+ start();
+ demande_mesure(5);
+}
+
+void SHT11::calcul_Temperature_Humidite(void)
+{
+ Temperature_mesuree=(Temperature*0.01-40);
+ Humidite_mesuree=((float)Temperature_mesuree-25.0)*(0.01+(0.00008*Humidite))-4+0.0405*Humidite-0.0000028*Humidite*Humidite;
+}
+
+void SHT11::reception_mesure_T(void)
+{
+ unsigned int i;
+ Temperature=0;
+
+ DATA_HT.input();
+ for (i=0;i<8;i++)
+ {
+ SCK_HT=1;
+// wait_us(1);
+ Temperature *=2;
+ if (DATA_HT==1) Temperature++;
+ SCK_HT=0;
+// wait_us(1);
+ }
+ DATA_HT.output();
+ DATA_HT=0;
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ DATA_HT.input();
+ for (i=0;i<8;i++)
+ {
+ SCK_HT=1;
+// wait_us(1);
+ Temperature *=2;
+ if (DATA_HT==1) Temperature++;
+ SCK_HT=0;
+// wait_us(1);
+ }
+ DATA_HT.output();
+ DATA_HT=1;
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+}
+
+void SHT11::reception_mesure_H(void)
+{
+ unsigned int i;
+ Humidite=0;
+
+ DATA_HT.input();
+ for (i=0;i<8;i++)
+ {
+ SCK_HT=1;
+// wait_us(1);
+ Humidite *=2;
+ if (DATA_HT==1) Humidite++;
+ SCK_HT=0;
+// wait_us(1);
+ }
+ DATA_HT.output();
+ DATA_HT=0;
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+ DATA_HT.input();
+ for (i=0;i<8;i++)
+ {
+ SCK_HT=1;
+// wait_us(1);
+ Humidite *=2;
+ if (DATA_HT==1) Humidite++;
+ SCK_HT=0;
+// wait_us(1);
+ }
+ DATA_HT.output();
+ DATA_HT=1;
+ SCK_HT=1;
+// wait_us(1);
+ SCK_HT=0;
+// wait_us(1);
+}
+
+void SHT11::gestion_HT(void)
+{
+ switch (etat_sht11)
+ {
+ case 0:
+ Timer_cycle_mesure.detach();
+ mesure_T();
+ etat_sht11=1;
+ Timer_cycle_mesure.attach_us(this, &SHT11::gestion_HT, 10000);
+ break;
+
+ case 1:
+ DATA_HT.input();
+ if (DATA_HT==0)
+ {
+ Timer_cycle_mesure.detach();
+ etat_sht11=2;
+ Timer_cycle_mesure.attach_us(this, &SHT11::gestion_HT, 1);
+ }
+ break;
+
+ case 2:
+ Timer_cycle_mesure.detach();
+ reception_mesure_T();
+ etat_sht11=3;
+ Timer_cycle_mesure.attach_us(this, &SHT11::gestion_HT, 1);
+ break;
+
+ case 3:
+ Timer_cycle_mesure.detach();
+ mesure_H();
+ etat_sht11=4;
+ Timer_cycle_mesure.attach_us(this, &SHT11::gestion_HT, 10000);
+ break;
+
+ case 4:
+ DATA_HT.input();
+ if (DATA_HT==0)
+ {
+ Timer_cycle_mesure.detach();
+ etat_sht11=5;
+ Timer_cycle_mesure.attach_us(this, &SHT11::gestion_HT, 1);
+ }
+ break;
+
+ case 5:
+ Timer_cycle_mesure.detach();
+ reception_mesure_H();
+ calcul_Temperature_Humidite();
+ etat_sht11=0;
+ Timer_cycle_mesure.attach(this, &SHT11::gestion_HT, Temps_cycle_mesure);
+ break;
+
+ default:
+ etat_sht11=0;
+ break;
+ }
+}
+
+float SHT11::lire_T(void)
+{
+ return Temperature_mesuree;
+}
+
+float SHT11::lire_H(void)
+{
+ return Humidite_mesuree;
+}
+
+void SHT11::lire_T_H(float *pointeur_Temperature, float *pointeur_Humidite)
+{
+ *pointeur_Temperature = Temperature_mesuree;
+ *pointeur_Humidite = Humidite_mesuree;
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/lib_SHT/lib_SHT11.h Thu Oct 23 09:42:24 2014 +0000
@@ -0,0 +1,45 @@
+#ifndef DEF_lib_SHT11_H
+#define DEF_lib_SHT11_H
+
+#include "mbed.h"
+
+
+class SHT11 : public Ticker
+{
+public:
+ SHT11(PinName pin_DATA, PinName pin_SCK, float T_C_mesure);
+
+ float lire_T(void);
+ float lire_H(void);
+ void lire_T_H(float *, float *);
+ void changer_timer_cycle(float new_Temps_cycle_mesure);
+ void init(void);
+ void desactiver(void);
+
+private:
+
+ void start(void);
+ void gestion_HT(void);
+ void demande_mesure(short octet_de_commande);
+ void mesure_T(void);
+ void mesure_H(void);
+ void mesure_T_H(void);
+ void reception_mesure_T(void);
+ void reception_mesure_H(void);
+ void calcul_Temperature_Humidite(void);
+
+ DigitalInOut DATA_HT;
+ DigitalOut SCK_HT;
+ Ticker Timer_cycle_mesure;
+
+ unsigned int Temperature;
+ unsigned int Humidite;
+ unsigned etat_sht11;
+ unsigned etat_cycle;
+ float Temperature_mesuree;
+ float Humidite_mesuree;
+ float Temps_cycle_mesure;
+};
+
+#endif
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 23 09:42:24 2014 +0000
@@ -0,0 +1,35 @@
+#include "mbed.h"
+#include "lib_LCD_i2c_SPTLYI.h"
+LCD_I2C LCD(p28,p27,p26,0x7C);
+
+int main()
+{
+
+
+ float i=0;
+ float j=0;
+
+ LCD.set_position_cursor(0,0);
+ LCD.print("compteur:");
+ LCD.set_position_cursor(0,1);
+ LCD.print("compteur2:");
+ while(1) {
+
+
+ LCD.set_position_cursor(9,0);
+
+ LCD.print(i++);
+ if(i>99) i=0.0 ;
+ wait(0.25);
+
+
+ LCD.set_position_cursor(10,1);
+
+ LCD.print(j=i/2);
+ if(j>99) j=0.0 ;
+ wait(0.25);
+
+ }
+}
+
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 23 09:42:24 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013 \ No newline at end of file