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analogWrite is not implemented on the ESP32

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See: https://github.com/espressif/arduino-esp32/issues/4
This commit is contained in:
Kristian Sloth Lauszus 2018-01-14 18:44:38 +01:00
parent cf1b69513f
commit bfac192732
1 changed files with 66 additions and 50 deletions
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116
examples/adk/demokit_20/demokit_20.ino
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@ -10,94 +10,110 @@
USB Usb; USB Usb;
USBHub hub0(&Usb); USBHub hub0(&Usb);
USBHub hub1(&Usb); USBHub hub1(&Usb);
ADK adk(&Usb,"Google, Inc.", ADK adk(&Usb, "Google, Inc.",
"DemoKit", "DemoKit",
"DemoKit Arduino Board", "DemoKit Arduino Board",
"1.0", "1.0",
"http://www.android.com", "http://www.android.com",
"0000000012345678"); "0000000012345678");
uint8_t b, b1; uint8_t b, b1;
#define LED1_RED 3 #define LED1_RED 3
#define BUTTON1 2 #define BUTTON1 2
#ifdef ESP32
#define LED1_RED_CHANNEL 0
#endif
void init_buttons() void init_buttons()
{ {
pinMode(BUTTON1, INPUT); pinMode(BUTTON1, INPUT);
// enable the internal pullups // enable the internal pullups
digitalWrite(BUTTON1, HIGH); digitalWrite(BUTTON1, HIGH);
} }
void init_leds() void init_leds()
{ {
digitalWrite(LED1_RED, 0); digitalWrite(LED1_RED, 0);
pinMode(LED1_RED, OUTPUT); #ifdef ESP32
ledcAttachPin(LED1_RED, LED1_RED_CHANNEL); // Assign LED pin to channel 0
ledcSetup(LED1_RED_CHANNEL, 12000, 8); // 12 kHz PWM, 8-bit resolution
#else
pinMode(LED1_RED, OUTPUT);
#endif
} }
void setup() void setup()
{ {
Serial.begin(115200); Serial.begin(115200);
#if !defined(__MIPSEL__) #if !defined(__MIPSEL__)
while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
#endif #endif
Serial.println("\r\nADK demo start"); Serial.println("\r\nADK demo start");
if (Usb.Init() == -1) { if (Usb.Init() == -1) {
Serial.println("OSCOKIRQ failed to assert"); Serial.println("OSCOKIRQ failed to assert");
while(1); //halt while (1); //halt
}//if (Usb.Init() == -1... }//if (Usb.Init() == -1...
init_leds();
init_leds(); init_buttons();
init_buttons(); b1 = digitalRead(BUTTON1);
b1 = digitalRead(BUTTON1);
} }
void loop() void loop()
{ {
uint8_t rcode; uint8_t rcode;
uint8_t msg[3] = { 0x00 }; uint8_t msg[3] = { 0x00 };
Usb.Task(); Usb.Task();
if( adk.isReady() == false ) { if ( adk.isReady() == false ) {
analogWrite(LED1_RED, 255); #ifdef ESP32
return; ledcWrite(LED1_RED_CHANNEL, 255);
} #else
uint16_t len = sizeof(msg); analogWrite(LED1_RED, 255);
#endif
return;
}
uint16_t len = sizeof(msg);
rcode = adk.RcvData(&len, msg); rcode = adk.RcvData(&len, msg);
if( rcode ) { if ( rcode ) {
USBTRACE2("Data rcv. :", rcode ); USBTRACE2("Data rcv. :", rcode );
} }
if(len > 0) { if (len > 0) {
USBTRACE("\r\nData Packet."); USBTRACE("\r\nData Packet.");
// assumes only one command per packet // assumes only one command per packet
if (msg[0] == 0x2) { if (msg[0] == 0x2) {
switch( msg[1] ) { switch ( msg[1] ) {
case 0: case 0:
#ifdef ESP32
ledcWrite(LED1_RED_CHANNEL, 255 - msg[2]);
#else
analogWrite(LED1_RED, 255 - msg[2]); analogWrite(LED1_RED, 255 - msg[2]);
#endif
break; break;
}//switch( msg[1]... }//switch( msg[1]...
}//if (msg[0] == 0x2... }//if (msg[0] == 0x2...
}//if( len > 0... }//if( len > 0...
msg[0] = 0x1; msg[0] = 0x1;
b = digitalRead(BUTTON1); b = digitalRead(BUTTON1);
if (b != b1) { if (b != b1) {
USBTRACE("\r\nButton state changed"); USBTRACE("\r\nButton state changed");
msg[1] = 0; msg[1] = 0;
msg[2] = b ? 0 : 1; msg[2] = b ? 0 : 1;
rcode = adk.SndData( 3, msg ); rcode = adk.SndData( 3, msg );
if( rcode ) { if ( rcode ) {
USBTRACE2("Button send: ", rcode ); USBTRACE2("Button send: ", rcode );
} }
b1 = b; b1 = b;
}//if (b != b1... }//if (b != b1...
delay( 10 ); delay( 10 );
} }