diff --git a/esp-link/cgi.c b/esp-link/cgi.c
index c99bada..1c870f5 100644
--- a/esp-link/cgi.c
+++ b/esp-link/cgi.c
@@ -18,17 +18,17 @@ Some random cgi routines.
 #include "cgi.h"
 
 void noCacheHeaders(HttpdConnData *connData, int code) {
-	httpdStartResponse(connData, code);
-	httpdHeader(connData, "Cache-Control", "no-cache, no-store, must-revalidate");
-	httpdHeader(connData, "Pragma", "no-cache");
-	httpdHeader(connData, "Expires", "0");
+  httpdStartResponse(connData, code);
+  httpdHeader(connData, "Cache-Control", "no-cache, no-store, must-revalidate");
+  httpdHeader(connData, "Pragma", "no-cache");
+  httpdHeader(connData, "Expires", "0");
 }
 
 void ICACHE_FLASH_ATTR
 jsonHeader(HttpdConnData *connData, int code) {
   noCacheHeaders(connData, code);
-	httpdHeader(connData, "Content-Type", "application/json");
-	httpdEndHeaders(connData);
+  httpdHeader(connData, "Content-Type", "application/json");
+  httpdEndHeaders(connData);
 }
 
 void ICACHE_FLASH_ATTR
@@ -119,43 +119,43 @@ UTILS_StrToIP(const char* str, void *ip){
 // Handle system information variables and print their value, returns the number of
 // characters appended to buff
 int ICACHE_FLASH_ATTR printGlobalInfo(char *buff, int buflen, char *token) {
-	if (TOKEN("si_chip_id")) {
-		return os_sprintf(buff, "0x%x", system_get_chip_id());
-	} else if (TOKEN("si_freeheap")) {
-		return os_sprintf(buff, "%dKB", system_get_free_heap_size()/1024);
-	} else if (TOKEN("si_uptime")) {
-		uint32 t = system_get_time() / 1000000; // in seconds
-		return os_sprintf(buff, "%dd%dh%dm%ds", t/(24*3600), (t/(3600))%24, (t/60)%60, t%60);
-	} else if (TOKEN("si_boot_version")) {
-		return os_sprintf(buff, "%d", system_get_boot_version());
-	} else if (TOKEN("si_boot_address")) {
-		return os_sprintf(buff, "0x%x", system_get_userbin_addr());
-	} else if (TOKEN("si_cpu_freq")) {
-		return os_sprintf(buff, "%dMhz", system_get_cpu_freq());
-	} else {
-		return 0;
-	}
+  if (TOKEN("si_chip_id")) {
+    return os_sprintf(buff, "0x%x", system_get_chip_id());
+  } else if (TOKEN("si_freeheap")) {
+    return os_sprintf(buff, "%dKB", system_get_free_heap_size()/1024);
+  } else if (TOKEN("si_uptime")) {
+    uint32 t = system_get_time() / 1000000; // in seconds
+    return os_sprintf(buff, "%dd%dh%dm%ds", t/(24*3600), (t/(3600))%24, (t/60)%60, t%60);
+  } else if (TOKEN("si_boot_version")) {
+    return os_sprintf(buff, "%d", system_get_boot_version());
+  } else if (TOKEN("si_boot_address")) {
+    return os_sprintf(buff, "0x%x", system_get_userbin_addr());
+  } else if (TOKEN("si_cpu_freq")) {
+    return os_sprintf(buff, "%dMhz", system_get_cpu_freq());
+  } else {
+    return 0;
+  }
 }
 #endif
 
 extern char *esp_link_version; // in user_main.c
 
 int ICACHE_FLASH_ATTR cgiMenu(HttpdConnData *connData) {
-	if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
-	char buff[1024];
-	// don't use jsonHeader so the response does get cached
-	httpdStartResponse(connData, 200);
-	httpdHeader(connData, "Cache-Control", "max-age=3600, must-revalidate");
-	httpdHeader(connData, "Content-Type", "application/json");
-	httpdEndHeaders(connData);
-	// construct json response
-	os_sprintf(buff,
+  if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
+  char buff[1024];
+  // don't use jsonHeader so the response does get cached
+  httpdStartResponse(connData, 200);
+  httpdHeader(connData, "Cache-Control", "max-age=3600, must-revalidate");
+  httpdHeader(connData, "Content-Type", "application/json");
+  httpdEndHeaders(connData);
+  // construct json response
+  os_sprintf(buff,
       "{\"menu\": [\"Home\", \"/home.html\", "
       "\"Wifi\", \"/wifi/wifi.html\","
       "\"\xC2\xB5" "C Console\", \"/console.html\", "
       "\"REST/MQTT\", \"/mqtt.html\","
       "\"Debug log\", \"/log.html\" ],\n"
-			" \"version\": \"%s\" }", esp_link_version);
-	httpdSend(connData, buff, -1);
-	return HTTPD_CGI_DONE;
+      " \"version\": \"%s\" }", esp_link_version);
+  httpdSend(connData, buff, -1);
+  return HTTPD_CGI_DONE;
 }
diff --git a/esp-link/log.c b/esp-link/log.c
index 713b9c3..ca8e0ad 100644
--- a/esp-link/log.c
+++ b/esp-link/log.c
@@ -22,139 +22,139 @@ static bool log_newline; // at start of a new line
 // when we connect to wifi AP. Here this is gated by the flash setting
 void ICACHE_FLASH_ATTR
 log_uart(bool enable) {
-	if (!enable && !log_no_uart && flashConfig.log_mode != LOG_MODE_ON) {
-		// we're asked to turn uart off, and uart is on, and the flash setting isn't always-on
+  if (!enable && !log_no_uart && flashConfig.log_mode != LOG_MODE_ON) {
+    // we're asked to turn uart off, and uart is on, and the flash setting isn't always-on
 #if 1
 #ifdef LOG_DBG
-		os_printf("Turning OFF uart log\n");
+    os_printf("Turning OFF uart log\n");
 #endif
-		os_delay_us(4*1000L); // time for uart to flush
-		log_no_uart = !enable;
+    os_delay_us(4*1000L); // time for uart to flush
+    log_no_uart = !enable;
 #endif
-	} else if (enable && log_no_uart && flashConfig.log_mode != LOG_MODE_OFF) {
-		// we're asked to turn uart on, and uart is off, and the flash setting isn't always-off
-		log_no_uart = !enable;
+  } else if (enable && log_no_uart && flashConfig.log_mode != LOG_MODE_OFF) {
+    // we're asked to turn uart on, and uart is off, and the flash setting isn't always-off
+    log_no_uart = !enable;
 #ifdef LOG_DBG
-		os_printf("Turning ON uart log\n");
+    os_printf("Turning ON uart log\n");
 #endif
-	}
+  }
 }
 
 static void ICACHE_FLASH_ATTR
 log_write(char c) {
-	log_buf[log_wr] = c;
-	log_wr = (log_wr+1) % BUF_MAX;
-	if (log_wr == log_rd) {
-		log_rd = (log_rd+1) % BUF_MAX; // full, eat first char
-		log_pos++;
-	}
+  log_buf[log_wr] = c;
+  log_wr = (log_wr+1) % BUF_MAX;
+  if (log_wr == log_rd) {
+    log_rd = (log_rd+1) % BUF_MAX; // full, eat first char
+    log_pos++;
+  }
 }
 
 #if 0
 static char ICACHE_FLASH_ATTR
 log_read(void) {
-	char c = 0;
-	if (log_rd != log_wr) {
-		c = log_buf[log_rd];
-		log_rd = (log_rd+1) % BUF_MAX;
-	}
-	return c;
+  char c = 0;
+  if (log_rd != log_wr) {
+    c = log_buf[log_rd];
+    log_rd = (log_rd+1) % BUF_MAX;
+  }
+  return c;
 }
 #endif
 
 static void ICACHE_FLASH_ATTR
 log_write_char(char c) {
-	// Uart output unless disabled
-	if (!log_no_uart) {
-		if (log_newline) {
-			char buff[16];
-			int l = os_sprintf(buff, "%6d> ", (system_get_time()/1000)%1000000);
-			for (int i=0; i<l; i++)
-				uart0_write_char(buff[i]);
-			log_newline = false;
-		}
-		uart0_write_char(c);
-		if (c == '\n') {
-			log_newline = true;
-			uart0_write_char('\r');
-		}
-	}
-	// Store in log buffer
-	if (c == '\n') log_write('\r');
-	log_write(c);
+  // Uart output unless disabled
+  if (!log_no_uart) {
+    if (log_newline) {
+      char buff[16];
+      int l = os_sprintf(buff, "%6d> ", (system_get_time()/1000)%1000000);
+      for (int i=0; i<l; i++)
+        uart0_write_char(buff[i]);
+      log_newline = false;
+    }
+    uart0_write_char(c);
+    if (c == '\n') {
+      log_newline = true;
+      uart0_write_char('\r');
+    }
+  }
+  // Store in log buffer
+  if (c == '\n') log_write('\r');
+  log_write(c);
 }
 
 int ICACHE_FLASH_ATTR
 ajaxLog(HttpdConnData *connData) {
-	char buff[2048];
-	int len; // length of text in buff
-	int log_len = (log_wr+BUF_MAX-log_rd) % BUF_MAX; // num chars in log_buf
-	int start = 0; // offset onto log_wr to start sending out chars
-
-	if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
-	jsonHeader(connData, 200);
-
-	// figure out where to start in buffer based on URI param
-	len = httpdFindArg(connData->getArgs, "start", buff, sizeof(buff));
-	if (len > 0) {
-		start = atoi(buff);
-		if (start < log_pos) {
-			start = 0;
-		} else if (start >= log_pos+log_len) {
-			start = log_len;
-		} else {
-			start = start - log_pos;
-		}
-	}
-
-	// start outputting
-	len = os_sprintf(buff, "{\"len\":%d, \"start\":%d, \"text\": \"",
-			log_len-start, log_pos+start);
-
-	int rd = (log_rd+start) % BUF_MAX;
-	while (len < 2040 && rd != log_wr) {
-		uint8_t c = log_buf[rd];
-		if (c == '\\' || c == '"') {
-			buff[len++] = '\\';
-			buff[len++] = c;
-		} else if (c < ' ') {
-			len += os_sprintf(buff+len, "\\u%04x", c);
-		} else {
-			buff[len++] = c;
-		}
-		rd = (rd + 1) % BUF_MAX;
-	}
-	os_strcpy(buff+len, "\"}"); len+=2;
-	httpdSend(connData, buff, len);
-	return HTTPD_CGI_DONE;
+  char buff[2048];
+  int len; // length of text in buff
+  int log_len = (log_wr+BUF_MAX-log_rd) % BUF_MAX; // num chars in log_buf
+  int start = 0; // offset onto log_wr to start sending out chars
+
+  if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
+  jsonHeader(connData, 200);
+
+  // figure out where to start in buffer based on URI param
+  len = httpdFindArg(connData->getArgs, "start", buff, sizeof(buff));
+  if (len > 0) {
+    start = atoi(buff);
+    if (start < log_pos) {
+      start = 0;
+    } else if (start >= log_pos+log_len) {
+      start = log_len;
+    } else {
+      start = start - log_pos;
+    }
+  }
+
+  // start outputting
+  len = os_sprintf(buff, "{\"len\":%d, \"start\":%d, \"text\": \"",
+      log_len-start, log_pos+start);
+
+  int rd = (log_rd+start) % BUF_MAX;
+  while (len < 2040 && rd != log_wr) {
+    uint8_t c = log_buf[rd];
+    if (c == '\\' || c == '"') {
+      buff[len++] = '\\';
+      buff[len++] = c;
+    } else if (c < ' ') {
+      len += os_sprintf(buff+len, "\\u%04x", c);
+    } else {
+      buff[len++] = c;
+    }
+    rd = (rd + 1) % BUF_MAX;
+  }
+  os_strcpy(buff+len, "\"}"); len+=2;
+  httpdSend(connData, buff, len);
+  return HTTPD_CGI_DONE;
 }
 
 static char *dbg_mode[] = { "auto", "off", "on" };
 
 int ICACHE_FLASH_ATTR
 ajaxLogDbg(HttpdConnData *connData) {
-	if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
-	char buff[512];
-	int len, status = 400;
-	len = httpdFindArg(connData->getArgs, "mode", buff, sizeof(buff));
-	if (len > 0) {
-		int8_t mode = -1;
-		if (os_strcmp(buff, "auto") == 0) mode = LOG_MODE_AUTO;
-		if (os_strcmp(buff, "off") == 0)  mode = LOG_MODE_OFF;
-		if (os_strcmp(buff, "on") == 0)   mode = LOG_MODE_ON;
-		if (mode >= 0) {
-			flashConfig.log_mode = mode;
-			if (mode != LOG_MODE_AUTO) log_uart(mode == LOG_MODE_ON);
-			status = configSave() ? 200 : 400;
-		}
-	} else if (connData->requestType == HTTPD_METHOD_GET) {
-		status = 200;
-	}
-
-	jsonHeader(connData, status);
-	os_sprintf(buff, "{\"mode\": \"%s\"}", dbg_mode[flashConfig.log_mode]);
-	httpdSend(connData, buff, -1);
-	return HTTPD_CGI_DONE;
+  if (connData->conn==NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
+  char buff[512];
+  int len, status = 400;
+  len = httpdFindArg(connData->getArgs, "mode", buff, sizeof(buff));
+  if (len > 0) {
+    int8_t mode = -1;
+    if (os_strcmp(buff, "auto") == 0) mode = LOG_MODE_AUTO;
+    if (os_strcmp(buff, "off") == 0)  mode = LOG_MODE_OFF;
+    if (os_strcmp(buff, "on") == 0)   mode = LOG_MODE_ON;
+    if (mode >= 0) {
+      flashConfig.log_mode = mode;
+      if (mode != LOG_MODE_AUTO) log_uart(mode == LOG_MODE_ON);
+      status = configSave() ? 200 : 400;
+    }
+  } else if (connData->requestType == HTTPD_METHOD_GET) {
+    status = 200;
+  }
+
+  jsonHeader(connData, status);
+  os_sprintf(buff, "{\"mode\": \"%s\"}", dbg_mode[flashConfig.log_mode]);
+  httpdSend(connData, buff, -1);
+  return HTTPD_CGI_DONE;
 }
 
 void ICACHE_FLASH_ATTR dumpMem(void *addr, int len) {
@@ -172,9 +172,9 @@ void ICACHE_FLASH_ATTR dumpMem(void *addr, int len) {
 }
 
 void ICACHE_FLASH_ATTR logInit() {
-	log_no_uart = flashConfig.log_mode == LOG_MODE_OFF; // ON unless set to always-off
-	log_wr = 0;
-	log_rd = 0;
+  log_no_uart = flashConfig.log_mode == LOG_MODE_OFF; // ON unless set to always-off
+  log_wr = 0;
+  log_rd = 0;
   os_install_putc1((void *)log_write_char);
 }