Documentation

main/leds.h

@@ -1,3 +1,9 @@
+///
+//
+// leds.h defines structs and functions for addressing an HD107s ledstrip over serial using the GPIO pins.
+//
+///
+
 #ifndef _potion_leds_h
 #define _potion_leds_h
 
@@ -58,7 +64,7 @@ void send_leds() {
         gpio_set_level(DATA, write_next);
 
         os_delay_us(10);
-        // set clock to low, triggering a falling edge
+        // set clock to low, triggering a falling edge, flushing the LEDs shift registers
         gpio_set_level(CLOCK, 0);
         os_delay_us(10);
 
@@ -112,6 +118,7 @@ void lerp_points_between(const struct gradient_point_t from, const struct gradie
     for(int led = from.offset; led < to.offset; ++led) {
         t = (float)(led - from.offset) / (float)dif;
         lerp_led(g_leds + led, &from.led, &to.led, t);
+        LOGLN("%f", t);
     }
 }
 

main/network.h

@@ -1,3 +1,10 @@
+///
+//
+// server.h manages the WiFi access point created for the quests.
+// wifi_init() and softap_init() HAVE TO be called in order.
+//
+///
+
 #ifndef _server_h
 #define _server_h
 

main/potion_party.c

@@ -7,24 +7,51 @@
 #include <stdio.h>
 #include <string.h>
 
+// starts the basic subsystems we will be using
 static
 void init_esp(void) {
+    // start the networking interface
     ESP_ERROR_CHECK(esp_netif_init());
+    // start the event loop
     ESP_ERROR_CHECK(esp_event_loop_create_default());  
 }
 
 void app_main(void) {
     LOGLN("---- starting");
 
+    // start hardware subsystems
     init_esp();
+    // startup leds and send initial state
     leds_init();
     send_leds();
+    // start wifi subsystem
     wifi_init();
+    // configure wifi hardware to act as an access point
     softap_init();
+    // start listening for HTTP signals
     server_init();
 
-    os_delay_us(10000);
+    // TEST: after a delay, set the leds to a gradient of red - black
-    send_leds();
+    os_delay_us(1000);
+
+    struct gradient_point_t points[2];
+    points[0].offset = 0;
+    points[0].led.components = (struct led_components_t) {
+        .global = 0xE | 10,
+        .red = 255,
+        .green = 10,
+        .blue = 10,
+    };
+
+    points[1].offset = 60;
+    points[1].led.components = (struct led_components_t){
+        .global = 0xE0,
+        .red = 0,
+        .green = 0,
+        .blue = 0,
+    };
+
+    leds_set_gradient(points, 2);
 
     LOGLN("---- finished setting up");
 }

main/server.h

@@ -1,3 +1,15 @@
+///
+//
+// server.h
+// Call server_init() to start up an http webserver.
+// listens on '/' for POST queries with a url query format like
+// ?l=*&r0=*&g0=*&b0=*&a0=*&t0=* ... &rl=*&gl=*&bl=*&al=*&tl=*
+// Where l is the number of points on a gradient. And each point of the gradient has a r* g* b* a* and t* where * is the index.
+// r g and b are the red green and blue 8-bit colour components of a point on the gradient. A is the 5-bit global component of the led at that point.
+// t is the offset from the start measured in leds.
+//
+///
+
 #ifndef _potion_party_server_h
 #define _potion_party_server_h
 
@@ -13,6 +25,7 @@
 static
 httpd_handle_t g_http_server = NULL;
 
+// Parse a gradient query
 static
 void parse_leds_query(char* query_string, size_t query_size) {
     char query_value[16];
@@ -61,6 +74,7 @@ void parse_leds_query(char* query_string, size_t query_size) {
         leds_set_gradient(points, gradient_point_count);
 }
 
+// receives HTTP POST requests on root
 static 
 esp_err_t on_http_post(httpd_req_t* request) {
     LOGLN("POST received on '/'.");
@@ -83,7 +97,6 @@ esp_err_t on_http_post(httpd_req_t* request) {
 
     return ESP_OK;
 }
-
 httpd_uri_t post = {
     .uri="/",
     .method=HTTP_POST,
@@ -91,6 +104,7 @@ httpd_uri_t post = {
     .user_ctx = NULL
 };
 
+// Configure and enable the http server.
 static
 httpd_handle_t start_webserver(void) {
     httpd_handle_t server = NULL;
@@ -106,6 +120,7 @@ httpd_handle_t start_webserver(void) {
     return NULL;
 }
 
+// Start an http server and store it's handle in g_http_server.
 static
 void server_init(void) {
     g_http_server = start_webserver();

main/shared.h

@@ -1,3 +1,9 @@
+///
+//
+// shared.h contains some shared settings and functionality
+//
+///
+
 #ifndef _shared_h
 #define _shared_h
 
@@ -6,12 +12,13 @@
 #include <esp_wifi.h>
 #include "esp_system.h"
 
+// wifi configuration
 #define SSID "ESP8266"
 #define PASSW "XR-Lab2023"
-#define WIFI_CONFIG 
 
 static const char* APP_TAG="CINEKID_LEDS";
 
+// print a line with the app tag as a prefix to easilly separate our own logging from system logging
 #define LOGLN(...) do {\
     printf("%s | ", APP_TAG);\
     printf(__VA_ARGS__);\

sdkconfig

@@ -61,14 +61,14 @@ CONFIG_ESPTOOLPY_AFTER_HARD_RESET=y
 CONFIG_ESPTOOLPY_AFTER="hard_reset"
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_9600B is not set
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_57600B is not set
-CONFIG_ESPTOOLPY_MONITOR_BAUD_74880B=y
+# CONFIG_ESPTOOLPY_MONITOR_BAUD_74880B is not set
-# CONFIG_ESPTOOLPY_MONITOR_BAUD_115200B is not set
+CONFIG_ESPTOOLPY_MONITOR_BAUD_115200B=y
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_230400B is not set
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_921600B is not set
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_2MB is not set
 # CONFIG_ESPTOOLPY_MONITOR_BAUD_OTHER is not set
 CONFIG_ESPTOOLPY_MONITOR_BAUD_OTHER_VAL=74880
-CONFIG_ESPTOOLPY_MONITOR_BAUD=74880
+CONFIG_ESPTOOLPY_MONITOR_BAUD=115200
 CONFIG_PARTITION_TABLE_SINGLE_APP=y
 # CONFIG_PARTITION_TABLE_TWO_OTA is not set
 # CONFIG_PARTITION_TABLE_CUSTOM is not set
@@ -452,14 +452,14 @@ CONFIG_FLASHMODE_QIO=y
 # CONFIG_FLASHMODE_DOUT is not set
 # CONFIG_MONITOR_BAUD_9600B is not set
 # CONFIG_MONITOR_BAUD_57600B is not set
-CONFIG_MONITOR_BAUD_74880B=y
+# CONFIG_MONITOR_BAUD_74880B is not set
-# CONFIG_MONITOR_BAUD_115200B is not set
+CONFIG_MONITOR_BAUD_115200B=y
 # CONFIG_MONITOR_BAUD_230400B is not set
 # CONFIG_MONITOR_BAUD_921600B is not set
 # CONFIG_MONITOR_BAUD_2MB is not set
 # CONFIG_MONITOR_BAUD_OTHER is not set
 CONFIG_MONITOR_BAUD_OTHER_VAL=74880
-CONFIG_MONITOR_BAUD=74880
+CONFIG_MONITOR_BAUD=115200
 CONFIG_OPTIMIZATION_LEVEL_DEBUG=y
 # CONFIG_OPTIMIZATION_LEVEL_RELEASE is not set
 CONFIG_OPTIMIZATION_ASSERTIONS_ENABLED=y

sdkconfig.old

@@ -9,7 +9,7 @@ CONFIG_IDF_TARGET="esp8266"
 # SDK tool configuration
 #
 CONFIG_SDK_TOOLPREFIX="xtensa-lx106-elf-"
-CONFIG_SDK_PYTHON="python"
+CONFIG_SDK_PYTHON="python2"
 # CONFIG_SDK_MAKE_WARN_UNDEFINED_VARIABLES is not set
 CONFIG_BOOTLOADER_INIT_SPI_FLASH=y
 # CONFIG_BOOTLOADER_DISABLE_JTAG_IO is not set