Add working model

.gitmodules

-[submodule "src/hardware/src/hardware/lib/pico-tflmicro"]
-	path = src/hardware/src/hardware/lib/pico-tflmicro
-	url = https://github.com/raspberrypi/pico-tflmicro
 [submodule "src/hardware/lib/pico-tflmicro"]
 	path = src/hardware/lib/pico-tflmicro
 	url = https://github.com/raspberrypi/pico-tflmicro

src/hardware/sign_model.h

+
+
+
+// This is a TensorFlow Lite model file that has been converted into a C data
+// array using the tensorflow.lite.util.convert_bytes_to_c_source() function.
+// This form is useful for compiling into a binary for devices that don't have a
+// file system.
+
+#ifndef TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_
+#define TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_
+
+extern const unsigned char sign_model[];
+extern const int sign_model_len;
+
+#endif  // TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_

requirements.txt → src/pc/requirements.txt

 numpy
-tensorflow
+tensorflow==2.15
 matplotlib
 keras
-pandas
+pandas
\ No newline at end of file

src/pc/sign_model.h

+
+
+
+// This is a TensorFlow Lite model file that has been converted into a C data
+// array using the tensorflow.lite.util.convert_bytes_to_c_source() function.
+// This form is useful for compiling into a binary for devices that don't have a
+// file system.
+
+#ifndef TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_
+#define TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_
+
+extern const unsigned char sign_model[];
+extern const int sign_model_len;
+
+#endif  // TENSORFLOW_LITE_UTIL_SIGN_MODEL_DATA_H_