diff --git a/embedded8266/esp82xx b/embedded8266/esp82xx
index 21e23b5..c0fc3a4 160000
--- a/embedded8266/esp82xx
+++ b/embedded8266/esp82xx
@@ -1 +1 @@
-Subproject commit 21e23b5c360045425abe6c855853f2d973420fc2
+Subproject commit c0fc3a450ce5c84ce77809d05d885d4ea304f833
diff --git a/embedded8266/user/user_main.c b/embedded8266/user/user_main.c
index 5b5267b..0a2d696 100644
--- a/embedded8266/user/user_main.c
+++ b/embedded8266/user/user_main.c
@@ -131,6 +131,7 @@ static void ICACHE_FLASH_ATTR myTimer(void *arg)
 	{
 		StartHPATimer(); //Init the high speed  ADC timer.
 		hpa_running = 1;
+		hpa_is_paused_for_wifi = 0; // only need to do once prevents unstable ADC
 	}
 //	uart0_sendStr(".");
 //	printf( "%d/%d\n",soundtail,soundhead );
@@ -222,6 +223,12 @@ void ICACHE_FLASH_ATTR user_init(void)
 
 	ws2812_init();
 
+	// Attempt to make ADC more stable
+	// https://github.com/esp8266/Arduino/issues/2070
+	// see peripherals https://espressif.com/en/support/explore/faq
+	//wifi_set_sleep_type(NONE_SLEEP_T); // on its own stopped wifi working
+	//wifi_fpm_set_sleep_type(NONE_SLEEP_T); // with this seemed no difference
+
 	system_os_post(procTaskPrio, 0, 0 );
 }