mirror of
https://github.com/modelec/servo_moteurs.git
synced 2026-03-18 21:40:31 +01:00
106 lines
2.9 KiB
C++
106 lines
2.9 KiB
C++
#include "servo_motor.h"
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// Fonction pour initialiser le PCA9685
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void initPCA9685(int handle)
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{
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// Mettre le PCA9685 en mode de sommeil
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i2cWriteByteData(handle, MODE1_REG, 0x10);
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// Configurer la fréquence PWM (par exemple, 50 Hz)
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int prescale_val = 25000000 / (4096 * 50) - 1;
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i2cWriteByteData(handle, PRE_SCALE, prescale_val);
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// Mettre le PCA9685 en mode de travail normal
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i2cWriteByteData(handle, MODE1_REG, 0x00);
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}
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// Fonction pour définir la position du servo
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void setServoPosition(int handle, int channel, int position)
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{
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if (position < 0 || position > 180){
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return;
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}
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int on_time = SERVO_MIN + (SERVO_MAX - SERVO_MIN) * position / 180 - 1;//temps ou le servo est allumé par rapport à 4096
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int on_time_lsb = on_time & ~(0b1111 << 8);// 8 premiers bits de poids faible du temps ou le servo est allumé
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int on_time_msb = on_time >> 8;// 4 premiers bits poids fort de on_time
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i2cWriteWordData(handle, LED0_ON_L + 4 * channel, 0);
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i2cWriteByteData(handle, LED0_ON_H + 4* channel, 0);
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i2cWriteByteData(handle, LED0_OFF_L + 4 * channel, on_time_lsb);//0xCD = 0.05*2^12-1
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if (0 < (on_time >> 8) && (on_time >> 8) < 256){
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i2cWriteByteData(handle, LED0_OFF_H + 4*channel, on_time_msb);
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}
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else {
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i2cWriteByteData(handle, LED0_OFF_H +4*channel, 0);
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}
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}
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//Change l'angle du servo de maniere precise (jspr par pitié)
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void changeServoPositionSynchro(int handle, int channel, int currentPosition, int targetPosition){
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if (targetPosition - currentPosition > 0){
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for (int i = currentPosition+1; i <= targetPosition; i++){
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setServoPosition(handle, channel, i);
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gpioSleep(PI_TIME_RELATIVE, 0, 10000);
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}//Fo bouger les servo en meme temps aaah donc rajouter les position et channel et info des autres servo
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}
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}
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//Fonctions pour le bras sur le canal 1
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void baisser_bras(int handle){
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int angle = 107;
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for (int i = 1; i <= 107;i++){
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gpioSleep(PI_TIME_RELATIVE, 0, 10000);
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setServoPosition(handle, 4, i);
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setServoPosition(handle, 5, 107-i);
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}
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}
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void lever_bras(int handle){
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int angle = 107;
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for (int i = 1; i <= 107;i++){
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gpioSleep(PI_TIME_RELATIVE, 0, 10000);
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setServoPosition(handle, 4, 107-i);
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setServoPosition(handle, 5, i);
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}
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}
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//Fonction pour les pinces
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void fermer_pince(int handle, int pince){
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int angle;
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if (pince < 0 || pince > 2){
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return;
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}
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switch(pince){
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case 0:
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angle = 142;
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break;
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case 1:
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angle = 42;
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break;
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case 2:
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angle = 152;
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break;
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}
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setServoPosition(handle, pince, angle);
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//10° de + pour fermer completement
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}
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void ouvrir_pince(int handle, int pince){
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int angle;
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if (pince < 0 || pince > 2){
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return;
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}
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switch(pince){
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case 0:
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angle = 115;
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break;
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case 1:
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angle = 22;
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break;
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case 2:
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angle = 125;
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break;
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}
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setServoPosition(handle, pince, angle);
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}
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