Trying to get Kconfig to work

There's something wrong with the importing part I think

README.md

@@ -1,53 +1,21 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
+# ESP Air Monitor
 
-# Hello World Example
+Skeletal idea for an esp based air monitor.
 
-Starts a FreeRTOS task to print "Hello World".
+## Hardware
 
-(See the README.md file in the upper level 'examples' directory for more information about examples.)
+I have used the following:
 
-## How to use example
+* ESP32-S3 (although as far as I know, I'm not using any special features... and should work on any esp)
+* DHT22
+* PMS5003
 
-Follow detailed instructions provided specifically for this example.
+I am thinking about also adding the following too:
 
-Select the instructions depending on Espressif chip installed on your development board:
+* Senseair S8 NDIR CO2
 
-- [ESP32 Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/stable/get-started/index.html)
-- [ESP32-S2 Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/get-started/index.html)
+Honestly... it might not look overly different from this sort of product (but I made this myself): https://www.airgradient.com/
 
+## License
 
-## Example folder contents
-
-The project **hello_world** contains one source file in C language [hello_world_main.c](main/hello_world_main.c). The file is located in folder [main](main).
-
-ESP-IDF projects are built using CMake. The project build configuration is contained in `CMakeLists.txt` files that provide set of directives and instructions describing the project's source files and targets (executable, library, or both).
-
-Below is short explanation of remaining files in the project folder.
-
-```
-├── CMakeLists.txt
-├── pytest_hello_world.py      Python script used for automated testing
-├── main
-│   ├── CMakeLists.txt
-│   └── hello_world_main.c
-└── README.md                  This is the file you are currently reading
-```
-
-For more information on structure and contents of ESP-IDF projects, please refer to Section [Build System](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html) of the ESP-IDF Programming Guide.
-
-## Troubleshooting
-
-* Program upload failure
-
-    * Hardware connection is not correct: run `idf.py -p PORT monitor`, and reboot your board to see if there are any output logs.
-    * The baud rate for downloading is too high: lower your baud rate in the `menuconfig` menu, and try again.
-
-## Technical support and feedback
-
-Please use the following feedback channels:
-
-* For technical queries, go to the [esp32.com](https://esp32.com/) forum
-* For a feature request or bug report, create a [GitHub issue](https://github.com/espressif/esp-idf/issues)
-
-We will get back to you as soon as possible.
+GPLv3

components/dht22/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "dht22.c"
+  INCLUDE_DIRS "."
+  REQUIRES driver)

components/dht22/Kconfig.projbuild

@@ -0,0 +1,6 @@
+menu "DHT22"
+    config DHT22_DATA_GPIO
+        int "DHT22 Data GPIO Pin"
+        default -1
+
+endmenu

components/dht22/dht22.c

@@ -0,0 +1,15 @@
+#include "dht22.h"
+
+#define DATA_GPIO CONFIG_DHT22_DATA_GPIO
+
+#if DATA_GPIO == -1
+#error "Please define your DHT22 GPIO Data Pin"
+#endif /* CONFIG_DHT22_DATA_GPIO == -1 */
+
+dht22_error dht_read() {
+  return DHT_OK;
+}
+
+int dht_temperature() {
+  return DATA_GPIO;
+}

components/dht22/dht22.h

@@ -0,0 +1,10 @@
+#pragma once
+
+typedef enum {
+  DHT_OK
+} dht22_error;
+
+int dht_temperature();
+dht22_error dht_read();
+
+

main/main.c

@@ -5,14 +5,14 @@
  */
 
 #include <stdio.h>
-#include <inttypes.h>
-//#include "sdkconfig.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
+#include "dht22.h"
 
 void app_main(void)
 {
-    printf("Hello world!\n");
+  int ret = dht_read();
+  printf("Hello world! - dhtRet: %i\n", ret);
   for (int i = 10; i >= 0; i--) {
       printf("Restarting in %d seconds...\n", i);
       vTaskDelay(1000 / portTICK_PERIOD_MS);