+
+static uint8_t tx_buf[2048];
+
+/*
+ * Return a JSON string of board status.
+ */
+static int cgi_status(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)
+{
+ (void)recv_buf;
+ (void)recv_len;
+ (void)name;
+
+ status.tot_req++;
+ uint16_t volt = ADC_RANGECONV(adc_read(1), 0, 3300);
+ //Update board status.
+ sprintf(status.last_connected_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->remote_ip.addr));
+ sprintf(status.local_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->local_ip.addr));
+
+ sprintf((char *)tx_buf, "{ \"local_ip\":\"%s\",\"last_connected_ip\":\"%s\", \"temp\":%d.%d,\"volt\":%d.%d,\"up_time\":%ld,\"tot_req\":%d, \
+\"leds\":{ \"0\":\"%d\", \"1\":\"%d\", \"2\":\"%d\"}}",
+ status.local_ip, status.last_connected_ip,
+ status.internal_temp / 10, status.internal_temp % 10,
+ volt / 1000, volt % 1000,
+ status.up_time, status.tot_req,
+ GET_LED_STATUS(status.led_status, 0),
+ GET_LED_STATUS(status.led_status, 1),
+ GET_LED_STATUS(status.led_status, 2));
+
+ http_sendOk(client, HTTP_CONTENT_JSON);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+static int cgi_logo(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)
+{
+ (void)recv_buf;
+ (void)recv_len;
+ (void)name;
+
+ http_sendOk(client, HTTP_CONTENT_JPEG);
+ netconn_write(client, bertos_logo_jpg, bertos_logo_jpg_len, NETCONN_NOCOPY);
+ return 0;
+}
+
+/*
+ * Return the internal micro temperature string.
+ */
+static int cgi_temp(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)
+{
+ (void)recv_buf;
+ (void)recv_len;
+ (void)name;
+
+ sprintf((char *)tx_buf, "[%d.%d]", status.internal_temp / 10, status.internal_temp % 10);
+
+ http_sendOk(client, HTTP_CONTENT_JSON);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+
+/*
+ * Return the board uptime.
+ */
+static int cgi_uptime(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)
+{
+ (void)recv_buf;
+ (void)recv_len;
+ (void)name;
+
+
+
+ uint32_t m = status.up_time / 60;
+ uint32_t h = m / 60;
+ uint32_t s = status.up_time - (m * 60) - (h * 3600);
+
+ sprintf((char *)tx_buf, "[\"%ldh %ldm %lds\"]", h, m, s);
+
+ http_sendOk(client, HTTP_CONTENT_JSON);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+/*
+ * Return the VR1 potentiometer voltage.
+ */
+static int cgi_resistor(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)
+{
+ (void)recv_buf;
+ (void)recv_len;
+ (void)name;
+
+ uint16_t volt = ADC_RANGECONV(adc_read(1), 0, 3300);
+ kprintf("volt %d\n", volt);
+ sprintf((char *)tx_buf, "[ \"%d.%dV\" ]", volt / 1000, volt % 1000);
+
+ http_sendOk(client, HTTP_CONTENT_JSON);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+
+#define CGI_LED_ID_KEY "n"
+#define CGI_LED_CMD_KEY "set"
+
+static char key_value[80];
+
+/*
+ * Reply to client the request string.
+ */
+static int cgi_led(struct netconn *client, const char *name, char *recv_buf, size_t recv_len)