diff --git a/c_mpos/esp32-quirc/CMakeLists.txt b/c_mpos/esp32-quirc_from_blockstream_jade/CMakeLists.txt
similarity index 100%
rename from c_mpos/esp32-quirc/CMakeLists.txt
rename to c_mpos/esp32-quirc_from_blockstream_jade/CMakeLists.txt
diff --git a/c_mpos/esp32-quirc/LICENSE b/c_mpos/esp32-quirc_from_blockstream_jade/LICENSE
similarity index 100%
rename from c_mpos/esp32-quirc/LICENSE
rename to c_mpos/esp32-quirc_from_blockstream_jade/LICENSE
diff --git a/c_mpos/esp32-quirc/Makefile b/c_mpos/esp32-quirc_from_blockstream_jade/Makefile
similarity index 100%
rename from c_mpos/esp32-quirc/Makefile
rename to c_mpos/esp32-quirc_from_blockstream_jade/Makefile
diff --git a/c_mpos/esp32-quirc/lib/LICENSE b/c_mpos/esp32-quirc_from_blockstream_jade/lib/LICENSE
similarity index 100%
rename from c_mpos/esp32-quirc/lib/LICENSE
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/LICENSE
diff --git a/c_mpos/esp32-quirc/lib/README.md b/c_mpos/esp32-quirc_from_blockstream_jade/lib/README.md
similarity index 100%
rename from c_mpos/esp32-quirc/lib/README.md
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/README.md
diff --git a/c_mpos/esp32-quirc/lib/decode.c b/c_mpos/esp32-quirc_from_blockstream_jade/lib/decode.c
similarity index 100%
rename from c_mpos/esp32-quirc/lib/decode.c
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/decode.c
diff --git a/c_mpos/esp32-quirc/lib/identify.c b/c_mpos/esp32-quirc_from_blockstream_jade/lib/identify.c
similarity index 100%
rename from c_mpos/esp32-quirc/lib/identify.c
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/identify.c
diff --git a/c_mpos/esp32-quirc/lib/quirc.c b/c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc.c
similarity index 100%
rename from c_mpos/esp32-quirc/lib/quirc.c
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc.c
diff --git a/c_mpos/esp32-quirc/lib/quirc.h b/c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc.h
similarity index 100%
rename from c_mpos/esp32-quirc/lib/quirc.h
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc.h
diff --git a/c_mpos/esp32-quirc/lib/quirc_internal.h b/c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc_internal.h
similarity index 100%
rename from c_mpos/esp32-quirc/lib/quirc_internal.h
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/quirc_internal.h
diff --git a/c_mpos/esp32-quirc/lib/version_db.c b/c_mpos/esp32-quirc_from_blockstream_jade/lib/version_db.c
similarity index 100%
rename from c_mpos/esp32-quirc/lib/version_db.c
rename to c_mpos/esp32-quirc_from_blockstream_jade/lib/version_db.c
diff --git a/c_mpos/esp32-quirc/openmv/collections.c b/c_mpos/esp32-quirc_from_blockstream_jade/openmv/collections.c
similarity index 100%
rename from c_mpos/esp32-quirc/openmv/collections.c
rename to c_mpos/esp32-quirc_from_blockstream_jade/openmv/collections.c
diff --git a/c_mpos/esp32-quirc/openmv/collections.h b/c_mpos/esp32-quirc_from_blockstream_jade/openmv/collections.h
similarity index 100%
rename from c_mpos/esp32-quirc/openmv/collections.h
rename to c_mpos/esp32-quirc_from_blockstream_jade/openmv/collections.h
diff --git a/c_mpos/esp32-quirc/openmv/fmath.h b/c_mpos/esp32-quirc_from_blockstream_jade/openmv/fmath.h
similarity index 100%
rename from c_mpos/esp32-quirc/openmv/fmath.h
rename to c_mpos/esp32-quirc_from_blockstream_jade/openmv/fmath.h
diff --git a/c_mpos/micropython.cmake b/c_mpos/micropython.cmake
index f7c7d5b3..18f6e45a 100644
--- a/c_mpos/micropython.cmake
+++ b/c_mpos/micropython.cmake
@@ -8,6 +8,11 @@ set(MPOS_C_INCLUDES)
 
 set(MPOS_C_SOURCES
     ${CMAKE_CURRENT_LIST_DIR}/src/hello_world.c
+    ${CMAKE_CURRENT_LIST_DIR}/src/quirc_decode.c
+    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/identify.c
+    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/version_db.c
+    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/decode.c
+    ${CMAKE_CURRENT_LIST_DIR}/quirc/lib/quirc.c
 )
 
 # Add our source files to the lib
diff --git a/c_mpos/micropython.mk b/c_mpos/micropython.mk
index f95776c2..861f0f85 100644
--- a/c_mpos/micropython.mk
+++ b/c_mpos/micropython.mk
@@ -10,10 +10,11 @@ ifneq (,$(findstring -Wno-missing-field-initializers, $(CFLAGS_USERMOD)))
 endif
 
 SRC_USERMOD_C += $(MOD_DIR)/src/hello_world.c
+SRC_USERMOD_C += $(MOD_DIR)/src/quirc_decode.c
 
-SRC_USERMOD_C += $(MOD_DIR)/esp32-quirc/lib/identify.c
-SRC_USERMOD_C += $(MOD_DIR)/esp32-quirc/lib/version_db.c
-SRC_USERMOD_C += $(MOD_DIR)/esp32-quirc/lib/decode.c
-SRC_USERMOD_C += $(MOD_DIR)/esp32-quirc/lib/quirc.c
-SRC_USERMOD_C += $(MOD_DIR)/esp32-quirc/openmv/collections.c
+SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/identify.c
+SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/version_db.c
+SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/decode.c
+SRC_USERMOD_C += $(MOD_DIR)/quirc/lib/quirc.c
+#SRC_USERMOD_C += $(MOD_DIR)/quirc/openmv/collections.c
 
diff --git a/c_mpos/quirc b/c_mpos/quirc
new file mode 160000
index 00000000..a9c52e79
--- /dev/null
+++ b/c_mpos/quirc
@@ -0,0 +1 @@
+Subproject commit a9c52e79283d6872728e68fec7892dc7c276c827
diff --git a/c_mpos/src/hello_world.c b/c_mpos/src/hello_world.c
index ed9bf38b..38ca79f9 100644
--- a/c_mpos/src/hello_world.c
+++ b/c_mpos/src/hello_world.c
@@ -1,18 +1,12 @@
 #include "py/obj.h"
 #include "py/runtime.h"
 
-#include "../esp32-quirc/lib/quirc.h"
 
 //#error "building hello world from lcd_utils"
 
 // C function to print "Hello World"
 static mp_obj_t hello_world(void) {
-    printf("Hello World from C with quirc!\n");
-
-    struct quirc *qr;
-    qr = quirc_new();
-    quirc_destroy(qr);
-
+    printf("Hello World from C!\n");
     return mp_const_none; // MicroPython functions typically return None
 }
 
diff --git a/c_mpos/src/quirc_decode.c b/c_mpos/src/quirc_decode.c
new file mode 100644
index 00000000..f2097eb2
--- /dev/null
+++ b/c_mpos/src/quirc_decode.c
@@ -0,0 +1,97 @@
+#include "py/obj.h"
+#include "py/runtime.h"
+#include "py/mperrno.h"
+
+#include <string.h>
+
+#include "../quirc/lib/quirc.h"
+
+// Function to decode a QR code from a grayscale image buffer
+static mp_obj_t qrdecode(mp_uint_t n_args, const mp_obj_t *args) {
+    printf("qrdecode running\n")
+    // Check argument count (expecting buffer, width, height)
+    if (n_args != 3) {
+        mp_raise_ValueError(MP_ERROR_TEXT("quirc_decode expects 3 arguments: buffer, width, height"));
+    }
+
+    // Extract buffer
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
+
+    // Extract width and height
+    mp_int_t width = mp_obj_get_int(args[1]);
+    mp_int_t height = mp_obj_get_int(args[2]);
+
+    // Validate dimensions
+    if (width <= 0 || height <= 0) {
+        mp_raise_ValueError(MP_ERROR_TEXT("width and height must be positive"));
+    }
+    if (bufinfo.len != (size_t)(width * height)) {
+        mp_raise_ValueError(MP_ERROR_TEXT("buffer size must match width * height"));
+    }
+
+    // Initialize quirc
+    struct quirc *qr = quirc_new();
+    if (!qr) {
+        mp_raise_OSError(MP_ENOMEM);
+    }
+
+    // Resize quirc for the image dimensions
+    if (quirc_resize(qr, width, height) < 0) {
+        quirc_destroy(qr);
+        mp_raise_OSError(MP_ENOMEM);
+    }
+
+    // Get quirc image buffer and copy grayscale data
+    uint8_t *image;
+    quirc_begin(qr, NULL, NULL);
+    image = quirc_begin(qr, NULL, NULL); // Get pointer to quirc's image buffer
+    memcpy(image, bufinfo.buf, width * height); // Copy buffer directly (grayscale, 8-bit)
+    quirc_end(qr);
+
+    // Check for QR codes
+    int count = quirc_count(qr);
+    if (count == 0) {
+        quirc_destroy(qr);
+        mp_raise_ValueError(MP_ERROR_TEXT("no QR code found"));
+    }
+
+    // Extract and decode the first QR code
+    struct quirc_code code;
+    struct quirc_data data;
+    quirc_extract(qr, 0, &code); // Extract first QR code
+
+    // Decode the QR code
+    int err = quirc_decode(&code, &data);
+    if (err != QUIRC_SUCCESS) {
+        quirc_destroy(qr);
+        mp_raise_ValueError(MP_ERROR_TEXT("failed to decode QR code"));
+    }
+
+    // Convert decoded data to Python string
+    mp_obj_t result = mp_obj_new_str((const char *)data.payload, data.payload_len);
+
+    // Clean up
+    quirc_destroy(qr);
+
+    return result;
+}
+
+// Define the MicroPython function
+static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(qrdecode_obj, 3, 3, qrdecode);
+
+// Module definition
+static const mp_rom_map_elem_t qrdecode_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_qrdecode) },
+    { MP_ROM_QSTR(MP_QSTR_qrdecode), MP_ROM_PTR(&qrdecode_obj) },
+};
+
+static MP_DEFINE_CONST_DICT(qrdecode_module_globals, qrdecode_module_globals_table);
+
+const mp_obj_module_t qrdecode_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&qrdecode_module_globals,
+};
+
+// Register the module
+MP_REGISTER_MODULE(MP_QSTR_qrdecode, qrdecode_module);
diff --git a/draft_code/qrdecode.py b/draft_code/qrdecode.py
new file mode 100644
index 00000000..fb25c06d
--- /dev/null
+++ b/draft_code/qrdecode.py
@@ -0,0 +1,29 @@
+import qrdecode
+
+
+# Image dimensions
+width = 240
+height = 240
+buffer_size = width * height  # 240 * 240 = 57600 bytes
+try:
+    # Allocate buffer for grayscale image
+    buffer = bytearray(buffer_size)
+    # Read the raw grayscale image file
+    with open('qrcode2.raw', 'rb') as f:
+        bytes_read = f.readinto(buffer)
+        if bytes_read != buffer_size:
+            raise ValueError("File size does not match expected 240x240 grayscale image")
+    # Decode QR code using qrdecode module
+    print("decoding...")
+    result = qrdecode.qrdecode(buffer, width, height)
+    print(f"result: {result}")
+    # Remove BOM (\ufeff) from the start of the decoded string, if present
+    if result.startswith('\ufeff'):
+        result = result[1:]
+    print(f"result: {result}")
+except OSError as e:
+    print("Error reading file:", e)
+    raise
+except ValueError as e:
+    print("Error:", e)
+    raise
diff --git a/internal_filesystem/apps/com.example.camtest/assets/camtest.py b/internal_filesystem/apps/com.example.camtest/assets/camtest.py
index 0fa81e3c..3d59d9de 100644
--- a/internal_filesystem/apps/com.example.camtest/assets/camtest.py
+++ b/internal_filesystem/apps/com.example.camtest/assets/camtest.py
@@ -4,6 +4,10 @@ keepgoing = True
 width = 240
 height = 240
 
+# Variable to hold the current memoryview to prevent garbage collection
+current_cam_buffer = None
+
+
 cont = lv.obj(appscreen)
 cont.set_style_pad_all(0, 0)
 cont.set_style_border_width(0, 0)
@@ -12,19 +16,59 @@ cont.set_scrollbar_mode(lv.SCROLLBAR_MODE.OFF)
 
 snap_button = lv.button(cont)
 snap_button.set_size(60, 60)
-snap_button.align(lv.ALIGN.RIGHT_MID, 0, -20)
+snap_button.align(lv.ALIGN.RIGHT_MID, 0, 0)
 snap_label = lv.label(snap_button)
 snap_label.set_text(lv.SYMBOL.OK)
 snap_label.center()
+
 def snap_button_click(e):
     print("Picture taken!")
-    # TODO: keep it on-screen for a while, or save it to storage, or show it in miniature
+    try:
+        import os
+        os.mkdir("data")
+        os.mkdir("data/com.example.camtest")
+    except OSError:
+        pass
+    if current_cam_buffer is not None:
+        filename="data/com.example.camtest/capture.raw"
+        try:
+            with open(filename, 'wb') as f:
+                f.write(current_cam_buffer)
+            print(f"Successfully wrote current_cam_buffer to {filename}")
+        except OSError as e:
+            print(f"Error writing to file: {e}")
 
 snap_button.add_event_cb(snap_button_click,lv.EVENT.CLICKED,None)
 
 
+qr_button = lv.button(cont)
+qr_button.set_size(60, 60)
+qr_button.align(lv.ALIGN.BOTTOM_RIGHT, 0, 0)
+qr_label = lv.label(qr_button)
+qr_label.set_text(lv.SYMBOL.EYE_OPEN)
+qr_label.center()
+
+def qr_button_click(e):
+    print("Decoding QR")
+    # Image dimensions
+    width = 240
+    height = 240
+    buffer_size = width * height  # 240 * 240 = 57600 bytes
+    try:
+        result = qrdecode.qrdecode(current_cam_buffer, width, height)
+        if result.startswith('\ufeff'): # Remove BOM (\ufeff) from the start of the decoded string, if present
+            result = result[1:]
+        print(f"QR decoding found: {result}")
+    except ValueError as e:
+        print("Error:", e)
+        raise
+
+
+qr_button.add_event_cb(qr_button_click,lv.EVENT.CLICKED,None)
+
+
 close_button = lv.button(cont)
-close_button.set_size(40,40)
+close_button.set_size(60,60)
 close_button.align(lv.ALIGN.TOP_RIGHT, 0, 0)
 close_label = lv.label(close_button)
 close_label.set_text(lv.SYMBOL.CLOSE)
@@ -50,7 +94,8 @@ cam = Camera(
     xclk_freq=20000000,
     powerdown_pin=-1,
     reset_pin=-1,
-    pixel_format=PixelFormat.RGB565,
+    #pixel_format=PixelFormat.RGB565,
+    pixel_format=PixelFormat.GRAYSCALE,
     frame_size=FrameSize.R240X240,
     grab_mode=GrabMode.LATEST 
 )
@@ -75,18 +120,17 @@ image_dsc = lv.image_dsc_t({
         "magic": lv.IMAGE_HEADER_MAGIC,
         "w": width,
         "h": height,
-        "stride": width * 2,
-        "cf": lv.COLOR_FORMAT.RGB565
+        "stride": width ,
+        #"cf": lv.COLOR_FORMAT.RGB565
+        "cf": lv.COLOR_FORMAT.L8
     },
-    'data_size': width * height * 2,
+    'data_size': width * height,
     'data': None  # Will be updated per frame
 })
 
 # Set initial image source (optional, can be set in try_capture)
 image.set_src(image_dsc)
 
-# Variable to hold the current memoryview to prevent garbage collection
-current_cam_buffer = None
 
 def try_capture():
     global current_cam_buffer