Added infinite scan option, and turns on 5V for some modules.

NRF24ChannelScanner/application.fam

@@ -8,7 +8,7 @@ App(
     stack_size=2 * 1024,
     requires=["gui"],
     fap_category="GPIO",
-    fap_version=(1, 2),
+    fap_version=(1, 3),
     fap_icon_assets="images",
     fap_icon="fapicon.png",
     fap_description="Scans 2.4Ghz frequency for usage data.",

NRF24ChannelScanner/lib/nrf24/nrf24.h

@@ -3,6 +3,11 @@
 #include <stdint.h>
 #include <furi_hal_spi.h>
 
+//uncomment for Xtreme FW
+//#include <xtreme.h>
+//uncomment for RogueMaster
+//#include <cfw.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -41,7 +46,13 @@ extern "C" {
 
 #define nrf24_TIMEOUT 500
 #define nrf24_CE_PIN &gpio_ext_pb2
+
+//for ofw
 #define nrf24_HANDLE &furi_hal_spi_bus_handle_external
+//for Xtreme
+//#define nrf24_HANDLE  (XTREME_SETTINGS()->spi_nrf24_handle == SpiDefault ? &furi_hal_spi_bus_handle_external : &furi_hal_spi_bus_handle_external_extra)
+//for RogueMaster
+//#define nrf24_HANDLE (CFW_SETTINGS()->spi_nrf24_handle == SpiDefault ? &furi_hal_spi_bus_handle_external :  &furi_hal_spi_bus_handle_external_extra)
 
 /* Low level API */
 

NRF24ChannelScanner/nrf24channelscanner.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <furi.h>
+#include <furi_hal_power.h>
 #include <gui/gui.h>
 #include <input/input.h>
 #include <gui/elements.h>
@@ -15,6 +16,8 @@ bool szuz = true; //to show welcome screen
 static bool isScanning = false; //to track the progress
 static bool stopNrfScan = false; //to exit thread
 
+static bool isInfiniteScan = false; //to prevent stop scan when OK long pressed
+
 static bool threadStoppedsoFree = false; //indicate if I can free the thread from ram.
 static uint8_t currCh = 0; //for the progress bar or the channel selector
 
@@ -62,15 +65,20 @@ static void draw_callback(Canvas* canvas, void* ctx) {
     //draw hello mesage
     if(szuz) {
         canvas_set_font(canvas, FontSecondary);
-        canvas_draw_str(canvas, 1, 22, "Up / Down to change channel time.");
-        canvas_draw_str(canvas, 1, 36, "Left / Right to select channel,");
-        canvas_draw_str(canvas, 1, 48, "to get it's frequency");
+        canvas_draw_str(canvas, 1, 22, "OK: scan / stop. Long: infinite.");
+        canvas_draw_str(canvas, 1, 33, "Up / Down to change channel time.");
+        canvas_draw_str(canvas, 1, 44, "Left / Right to select channel");
+        canvas_draw_str(canvas, 1, 56, "  to get it's frequency");
     }
 
     //draw freq ir the progress
     canvas_set_font(canvas, FontSecondary);
     if(isScanning) {
-        canvas_draw_str(canvas, 37, 8, "scanning");
+        if(isInfiniteScan)
+            canvas_draw_str(canvas, 37, 8, "scanning...");
+        else
+            canvas_draw_str(canvas, 37, 8, "scanning");
+
     } else {
         if(showFreq) {
             int freq = 2400 + currCh;
@@ -123,7 +131,7 @@ static int32_t scanner(void* context) {
     nrf24_set_rx_mode(nrf24_HANDLE, false);
     nrf24_write_reg(nrf24_HANDLE, REG_EN_AA, 0x0);
     nrf24_write_reg(nrf24_HANDLE, REG_RF_SETUP, 0x0f);
-    for(uint8_t j = 0; j < 15;) { //scan until stopped!
+    while(true) { //scan until stopped somehow
         if(stopNrfScan) break;
         for(uint8_t i = 0; i < num_channels; i++) {
             if(stopNrfScan) break;
@@ -134,12 +142,18 @@ static int32_t scanner(void* context) {
                 nrf24_flush_rx(nrf24_HANDLE);
                 furi_delay_us(delayPerChan);
                 tmp = nrf24_get_rdp(nrf24_HANDLE);
-                if(tmp > 0) nrf24values[i]++;
-                if(nrf24values[i] > 50) j = 254; //stop, bc maxed
+                if(tmp > 0 && nrf24values[i] < 65) {
+                    nrf24values[i]++; //don't overrun it
+                }
+                if(nrf24values[i] > 50 && !isInfiniteScan) {
+                    stopNrfScan = true; //stop, bc maxed, but only when not infinite
+                }
             }
         }
         furi_delay_ms(1);
+        //for screen refresh.
     }
+    //cleanup
     nrf24_set_idle(nrf24_HANDLE);
     isScanning = false;
     threadStoppedsoFree = true;
@@ -157,7 +171,7 @@ void ChangeDelay(int delta) {
     delayPerChan += delta;
     if(delayPerChan > 4000) delayPerChan = 4000;
     if(delayPerChan < 120) delayPerChan = 120;
-
+    if(delayPerChan == 170) delayPerChan = 150; //rounding for the next
     showFreq = false;
 }
 
@@ -168,6 +182,13 @@ int32_t nrf24channelscanner_main(void* p) {
     Event event;
     FuriMessageQueue* event_queue = furi_message_queue_alloc(8, sizeof(Event));
 
+    //turn on 5v for some modules
+    uint8_t attempts = 0;
+    while(!furi_hal_power_is_otg_enabled() && attempts++ < 5) {
+        furi_hal_power_enable_otg();
+        furi_delay_ms(10);
+    }
+
     nrf24_init();
 
     ViewPort* view_port = view_port_alloc();
@@ -193,7 +214,8 @@ int32_t nrf24channelscanner_main(void* p) {
                 }
                 break;
             }
-            if(event.input.type == InputTypeShort && event.input.key == InputKeyOk) {
+            if((event.input.type == InputTypeShort || event.input.type == InputTypeLong) &&
+               event.input.key == InputKeyOk) {
                 if(isScanning) {
                     notification_message(notification, &sequence_blink_yellow_100);
                     stopNrfScan = true;
@@ -207,6 +229,7 @@ int32_t nrf24channelscanner_main(void* p) {
                     threadStoppedsoFree = false;
                     ifNotFoundNrf = false;
                     notification_message(notification, &sequence_blink_green_100);
+                    isInfiniteScan = (event.input.type == InputTypeLong);
                     thread = furi_thread_alloc();
                     furi_thread_set_name(thread, "nrfscannerth");
                     furi_thread_set_stack_size(thread, 1024);
@@ -247,5 +270,9 @@ int32_t nrf24channelscanner_main(void* p) {
     gui_remove_view_port(gui, view_port);
     view_port_free(view_port);
     furi_record_close(RECORD_GUI);
+    //turn off 5v
+    if(furi_hal_power_is_otg_enabled()) {
+        furi_hal_power_disable_otg();
+    }
     return 0;
 }

README.md

@@ -13,12 +13,14 @@ After the scanning finished, you can hit left or right keys, to find what freque
 
 ## Screenshot
 
-<img src="https://raw.githubusercontent.com/htotoo/NRF24ChannelScanner/main/screen1.png">
+<img src="https://raw.githubusercontent.com/htotoo/NRF24ChannelScanner/main/NRF24ChannelScanner/.flipcorg/gallery/screen1.png">
 
 ## Buttons
 
 OK short: start / stop the scan.
 
+OK long: start an infinite scan, that scans until stopped.
+
 BACK long: exit the app.
 
 LEFT / RIGHT: when not scanning select the channel to see it's frequency. Short press steps 1, long 10.

changelog.md

@@ -0,0 +1 @@
+v1.3: added infinite scan and auto turn on 5V for some modules.