Figured out how to turn on PSRAM

Now it looks like you can just allocate from a regular "malloc"
Code ran successfully (afaict) when writing to 7MB - didn't seem
to when doing 8MB. Not 100% sure why, but I don't think it'll
matter tbh

main/main.c

@@ -1,4 +1,4 @@
-/*
+/**
  * Author: Arthur Roberts (c) 2023
  *
  * License: GPLv3+
@@ -8,11 +8,31 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "dht22.h"
+#include "esp_log.h"
+#include "esp_wifi.h"
+
+static const char *TAG = "YASPAM";
+
+struct air_monitor_data {
+#ifdef CONFIG_DHT22_DATA_GPIO
+  deci_percent   dht22_relative_humidity;
+  deci_degrees_c dht22_temperature;
+#endif /* CONFIG_DHT22_DATA_GPIO */
+
+#ifdef CONFIG_PMS5003_DATA_GPIO
+  // TODO
+#endif /* CONFIG_PMS5003_DATA_GPIO */
+  int64_t time; // TODO think about how best to store this.
+};
 
 void app_main(void)
 {
-  int ret = dht22_temperature();
-  printf("Hello world! - dhtRet: %i\n", ret);
+#ifdef CONFIG_DHT22_DATA_GPIO
+  int ret = dht22_read();
+#endif /* CONFIG_DHT22_DATA_GPIO */
+
+  
+  
   for (int i = 10; i >= 0; i--) {
       printf("Restarting in %d seconds...\n", i);
       vTaskDelay(1000 / portTICK_PERIOD_MS);