Allow Windows to turn off screen/sleep (#11)

* Change HID polling interval and optimize report sending

Updated HID polling interval from 10ms to 100ms and modified report sending logic to only send changes.

* Add workflow_dispatch event to GitHub Actions

* Upgrade upload-artifact action to version 4

* Document changes for Windows/monitor sleep support

Added a section to highlight changes regarding Windows/monitor sleep compatibility.

* Remove original changes section from README

Author: joachimvenaas

.github/workflows/action.yml

@@ -6,6 +6,7 @@ on:
   release:
     types:
       - created
+  workflow_dispatch:
 
 jobs:
   build:
@@ -46,7 +47,7 @@ jobs:
       shell: bash
       run: cmake --build . --parallel ${{steps.core_count.outputs.output}}
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: ${{ matrix.hardware }}.uf2
-        path: ${{github.workspace}}/build/*.uf2
+        path: ${{github.workspace}}/build/*.uf2

src/main.c

@@ -126,9 +126,10 @@ void tud_resume_cb(void)
 // tud_hid_report_complete_cb() is used to send the next report after previous one is complete
 void hid_task(void)
 {
-    // Poll every 10ms
+    // Poll every 100ms
     const uint32_t interval_ms = 100;
     static uint32_t start_ms = 0;
+    static uint8_t prev_report[7] = {0}; // Track previous report
 
     if (board_millis() - start_ms < interval_ms)
         return; // not enough time
@@ -139,15 +140,16 @@ void hid_task(void)
         return;
 
     uint8_t report[7] = {0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00};
-
     report[3] = !gpio_get(BUTTON_1_GPIO);
     report[4] = !gpio_get(BUTTON_2_GPIO);
     report[5] = !gpio_get(BUTTON_3_GPIO);
 
-    // send pedal hid report
-    tud_hid_report(1, &report, 7);
+    // Only send the report if there's a change
+    if (memcmp(report, prev_report, sizeof(report)) != 0) {
+        tud_hid_report(1, &report, sizeof(report));
+        memcpy(prev_report, report, sizeof(report));
+    }
 }
-
 // Invoked when sent REPORT successfully to host
 // Application can use this to send the next report
 // Note: For composite reports, report[0] is report ID
@@ -278,4 +280,4 @@ void neopixel_task(void)
             put_pixel(ledColor);
         }
     }
-}
+}