From 1596b3883c21644e311566772c7860bb3d097b34 Mon Sep 17 00:00:00 2001
From: hhaupt <hans.haupt@dezibot.de>
Date: Wed, 1 May 2024 14:25:03 +0200
Subject: [PATCH] added the possibility of sending a specific frequency via IR

---
 example/example.ino               | 13 ---------
 src/infraredLight/InfraredLED.cpp | 47 +++++++++++++++++++++++++++----
 src/infraredLight/InfraredLight.h | 19 +++++++++++--
 3 files changed, 58 insertions(+), 21 deletions(-)
 delete mode 100644 example/example.ino

diff --git a/example/example.ino b/example/example.ino
deleted file mode 100644
index e454f79..0000000
--- a/example/example.ino
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <Dezibot.h>
-
-Dezibot dezibot = Dezibot();
-
-void setup() {
-    dezibot.begin();
-    dezibot.infraredLight.front.turnOn();
-    dezibot.infraredLight.bottom.turnOn();
-}
-
-void loop() {
-
-}
diff --git a/src/infraredLight/InfraredLED.cpp b/src/infraredLight/InfraredLED.cpp
index 082add1..60ee6e7 100644
--- a/src/infraredLight/InfraredLED.cpp
+++ b/src/infraredLight/InfraredLED.cpp
@@ -1,12 +1,36 @@
 #include "InfraredLight.h"
 
-
-InfraredLED::InfraredLED(uint8_t pin){
-    ledPin = pin;
+#define pwmSpeedMode LEDC_LOW_SPEED_MODE
+#define fooPin 13
+#define footimer LEDC_TIMER_0
+#define foochannel LEDC_CHANNEL_0
+InfraredLED::InfraredLED(uint8_t pin,ledc_timer_t timer, ledc_channel_t channel){
+    this->ledPin = pin;
+    this->timer = timer;
+    this->channel = channel;
 };
 
 void InfraredLED::begin(void){
-    pinMode(ledPin,OUTPUT);
+   //we want to change frequency instead of 
+    pwmTimer = ledc_timer_config_t{
+        .speed_mode = pwmSpeedMode,
+        .duty_resolution = LEDC_TIMER_10_BIT,
+        .timer_num = this->timer,
+        .freq_hz = 1,
+        .clk_cfg = LEDC_AUTO_CLK
+    };
+    ledc_timer_config(&pwmTimer);
+
+    pwmChannel = ledc_channel_config_t{
+        .gpio_num = this->ledPin,
+        .speed_mode =pwmSpeedMode,
+        .channel = this->channel,
+        .intr_type = LEDC_INTR_DISABLE,
+        .timer_sel = this->timer,
+        .duty = 0,
+        .hpoint = 0
+    };
+    ledc_channel_config(&pwmChannel);
 };
 
 void InfraredLED::turnOn(void){
@@ -18,5 +42,18 @@ void InfraredLED::turnOff(void){
 };
 
 void InfraredLED::setState(bool state){
-    digitalWrite(ledPin,state);
+    ledc_set_freq(pwmSpeedMode,timer,1);
+    if (state) {
+        ledc_set_duty(pwmSpeedMode,channel,1023);
+    } else {
+        ledc_set_duty(pwmSpeedMode,channel,0);
+    }
+    ledc_update_duty(pwmSpeedMode,channel);
+    
+};
+
+void InfraredLED::sendFrequency(uint16_t frequency){
+    ledc_set_freq(pwmSpeedMode,timer,frequency);
+    ledc_set_duty(pwmSpeedMode,channel,512);
+    ledc_update_duty(pwmSpeedMode,channel);
 };
\ No newline at end of file
diff --git a/src/infraredLight/InfraredLight.h b/src/infraredLight/InfraredLight.h
index 54c2523..d13390f 100644
--- a/src/infraredLight/InfraredLight.h
+++ b/src/infraredLight/InfraredLight.h
@@ -12,6 +12,7 @@
 #define InfraredLight_h
 #include <stdint.h>
 #include <Arduino.h>
+#include "driver/ledc.h"
 
 enum IRLeds{
     Bottom,
@@ -20,7 +21,7 @@ enum IRLeds{
 
 class InfraredLED{
     public: 
-        InfraredLED(uint8_t pin);
+        InfraredLED(uint8_t pin, ledc_timer_t timer, ledc_channel_t channel);
         void begin(void);
         /**
          * @brief enables selected LED
@@ -41,14 +42,26 @@ class InfraredLED{
          * @param state true if led should be turned on, else false
          */
         void setState(bool state);
+        /**
+         * @brief starts flashing the IRLed with a specific frequency 
+         * Won't stop automatically, must be stopped by calling any other IR-Method
+         * 
+         * @param frequency 
+         */
+        void sendFrequency(uint16_t frequency);
     protected:
         uint8_t ledPin;
+        ledc_timer_t timer;
+        ledc_channel_t channel;
+        ledc_timer_config_t pwmTimer;
+        ledc_channel_config_t pwmChannel;
 };
 
 class InfraredLight{
 public:
-    InfraredLED bottom = InfraredLED(IRBottomPin);
-    InfraredLED front  = InfraredLED(IRFrontPin);
+    //Do something for correct resource sharing
+    InfraredLED bottom = InfraredLED(IRBottomPin,LEDC_TIMER_0,LEDC_CHANNEL_0);
+    InfraredLED front  = InfraredLED(IRFrontPin,LEDC_TIMER_1,LEDC_CHANNEL_1);
     void begin(void);
 
 protected: