Hi everybody,
I have installed the Adafruit TinyUSB-library with all dependencies and then tried to compile this examplecode
#include "Adafruit_TinyUSB.h"
/* This sketch demonstrates USB HID keyboard.
* - PIN A0-A5 is used to send digit '0' to '5' respectively
* (On the RP2040, pins D0-D5 used)
* - LED will be used as Caplock indicator
*/
// HID report descriptor using TinyUSB's template
// Single Report (no ID) descriptor
uint8_t const desc_hid_report[] =
{
TUD_HID_REPORT_DESC_KEYBOARD(),
};
Adafruit_USBD_HID usb_hid;
// Array of pins and its keycode
// For keycode definition see BLEHidGeneric.h
#ifdef ARDUINO_ARCH_RP2040
uint8_t pins[] = { D0, D1, D2, D3, D4, D5 };
#else
uint8_t pins[] = { A0, A1, A2, A3, A4, A5 };
#endif
uint8_t hidcode[] = { HID_KEY_0, HID_KEY_1, HID_KEY_2, HID_KEY_3 , HID_KEY_4, HID_KEY_5 };
uint8_t pincount = sizeof(pins)/sizeof(pins[0]);
// the setup function runs once when you press reset or power the board
void setup()
{
usb_hid.setPollInterval(2);
usb_hid.setReportDescriptor(desc_hid_report, sizeof(desc_hid_report));
usb_hid.setReportCallback(NULL, hid_report_callback);
//usb_hid.setStringDescriptor("TinyUSB Keyboard");
usb_hid.begin();
// led pin
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW);
// Set up pin as input
for (uint8_t i=0; i<pincount; i++)
{
pinMode(pins[i], INPUT_PULLUP);
}
// wait until device mounted
while( !USBDevice.mounted() ) delay(1);
}
void loop()
{
// poll gpio once each 2 ms
delay(2);
// // Remote wakeup
// if ( USBDevice.suspended() && btn )
// {
// // Wake up host if we are in suspend mode
// // and REMOTE_WAKEUP feature is enabled by host
// USBDevice.remoteWakeup();
// }
if ( !usb_hid.ready() ) return;
static bool keyPressedPreviously = false;
bool anyKeyPressed = false;
uint8_t count=0;
uint8_t keycode[6] = { 0 };
// scan normal key and send report
for(uint8_t i=0; i < pincount; i++)
{
if ( 0 == digitalRead(pins[i]) )
{
// if pin is active (low), add its hid code to key report
keycode[count++] = hidcode[i];
// 6 is max keycode per report
if (count == 6)
{
usb_hid.keyboardReport(0, 0, keycode);
delay(2); // delay for report to send out
// reset report
count = 0;
memset(keycode, 0, 6);
}
// used later
anyKeyPressed = true;
keyPressedPreviously = true;
}
}
// Send any remaining keys (not accumulated up to 6)
if ( count )
{
usb_hid.keyboardReport(0, 0, keycode);
}
// Send All-zero report to indicate there is no keys pressed
// Most of the time, it is, though we don't need to send zero report
// every loop(), only a key is pressed in previous loop()
if ( !anyKeyPressed && keyPressedPreviously )
{
keyPressedPreviously = false;
usb_hid.keyboardRelease(0);
}
}
// Output report callback for LED indicator such as Caplocks
void hid_report_callback(uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
{
(void) report_id;
(void) bufsize;
// LED indicator is output report with only 1 byte length
if ( report_type != HID_REPORT_TYPE_OUTPUT ) return;
// The LED bit map is as follows: (also defined by KEYBOARD_LED_* )
// Kana (4) | Compose (3) | ScrollLock (2) | CapsLock (1) | Numlock (0)
uint8_t ledIndicator = buffer[0];
// turn on LED if caplock is set
digitalWrite(LED_BUILTIN, ledIndicator & KEYBOARD_LED_CAPSLOCK);
}But it fails with this error-message:
cannot declare variable 'usb_hid' to be of abstract type 'Adafruit_USBD_HID'
Here is the shortened compiler-output
Using library Adafruit_TinyUSB_Library at version 1.0.3 in folder: F:\MyPortable-PRgs\arduino1.8.13\portable\sketchbook\libraries\Adafruit_TinyUSB_Library
exit status 1
cannot declare variable 'usb_hid' to be of abstract type 'Adafruit_USBD_HID'
I know it would be better to post the whole error-message but the forum-software says no.
If somebody wants it I can attach it as a textfile
Now I’m stumped how to solve this.
Any hints are greatly appreciated
best regards Stefan