arduino-esp32/libraries/USB/examples/CustomHIDDevice/CustomHIDDevice.ino
Me No Dev c45cff5f83
Implement USB HID Device Support for ESP32-S2 (#5538)
* Add support and example for USB HID Devices
* Add support and example for USB Vendor
2021-08-23 17:27:34 +03:00

80 lines
2.2 KiB
C++

#include "USB.h"
#include "USBHID.h"
USBHID HID;
static const uint8_t report_descriptor[] = { // 8 axis
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x04, // Usage (Joystick)
0xa1, 0x01, // Collection (Application)
0xa1, 0x00, // Collection (Physical)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x09, 0x32, // Usage (Z)
0x09, 0x33, // Usage (Rx)
0x09, 0x34, // Usage (Ry)
0x09, 0x35, // Usage (Rz)
0x09, 0x36, // Usage (Slider)
0x09, 0x36, // Usage (Slider)
0x15, 0x81, // Logical Minimum (-127)
0x25, 0x7f, // Logical Maximum (127)
0x75, 0x08, // Report Size (8)
0x95, 0x08, // Report Count (8)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0xC0, // End Collection
};
class CustomHIDDevice: public USBHIDDevice {
public:
CustomHIDDevice(void){
static bool initialized = false;
if(!initialized){
initialized = true;
HID.addDevice(this, sizeof(report_descriptor));
}
}
void begin(void){
HID.begin();
}
uint16_t _onGetDescriptor(uint8_t* buffer){
memcpy(buffer, report_descriptor, sizeof(report_descriptor));
return sizeof(report_descriptor);
}
bool send(uint8_t * value){
return HID.SendReport(0, value, 8);
}
};
CustomHIDDevice Device;
const int buttonPin = 0;
int previousButtonState = HIGH;
uint8_t axis[8];
void setup() {
Serial.begin(115200);
Serial.setDebugOutput(true);
pinMode(buttonPin, INPUT_PULLUP);
Device.begin();
USB.begin();
}
void loop() {
int buttonState = digitalRead(buttonPin);
if (HID.ready() && buttonState != previousButtonState) {
previousButtonState = buttonState;
if (buttonState == LOW) {
Serial.println("Button Pressed");
axis[0] = random() & 0xFF;
Device.send(axis);
} else {
Serial.println("Button Released");
}
delay(100);
}
}