diff --git a/src/hal/bk7231/hal_adc_bk7231.c b/src/hal/bk7231/hal_adc_bk7231.c
new file mode 100644
index 000000000..03e0c574d
--- /dev/null
+++ b/src/hal/bk7231/hal_adc_bk7231.c
@@ -0,0 +1,10 @@
+#include "../hal_adc.h"
+
+void HAL_ADC_Init(int pinNumber) {
+
+}
+int HAL_ADC_Read(int pinNumber) {
+	// TODO
+	return 123;
+}
+
diff --git a/src/hal/bl602/hal_adc_bl602.c b/src/hal/bl602/hal_adc_bl602.c
new file mode 100644
index 000000000..52be49f19
--- /dev/null
+++ b/src/hal/bl602/hal_adc_bl602.c
@@ -0,0 +1,16 @@
+#ifdef PLATFORM_BL602
+
+
+#include "../hal_adc.h"
+
+void HAL_ADC_Init(int pinNumber) {
+
+}
+int HAL_ADC_Read(int pinNumber) {
+	// TODO
+	return 123;
+}
+
+#endif // PLATFORM_BL602
+
+
diff --git a/src/hal/hal_adc.h b/src/hal/hal_adc.h
new file mode 100644
index 000000000..662bc6ce6
--- /dev/null
+++ b/src/hal/hal_adc.h
@@ -0,0 +1,6 @@
+
+
+
+void HAL_ADC_Init(int pinNumber);
+int HAL_ADC_Read(int pinNumber);
+
diff --git a/src/hal/xr809/hal_adc_xr809.c b/src/hal/xr809/hal_adc_xr809.c
new file mode 100644
index 000000000..6850375a7
--- /dev/null
+++ b/src/hal/xr809/hal_adc_xr809.c
@@ -0,0 +1,15 @@
+#ifdef PLATFORM_XR809
+
+#include "../hal_adc.h"
+
+void HAL_ADC_Init(int pinNumber) {
+
+}
+int HAL_ADC_Read(int pinNumber) {
+	// TODO
+	return 123;
+}
+
+
+#endif // PLATFORM_XR809
+
diff --git a/src/httpserver/new_http.c b/src/httpserver/new_http.c
index 725baabcc..2635337ec 100644
--- a/src/httpserver/new_http.c
+++ b/src/httpserver/new_http.c
@@ -245,6 +245,7 @@ const char *htmlPinRoleNames[] = {
 	"BL0937 SEL",
 	"BL0937 CF",
 	"BL0937 CF1",
+	"ADC",
 	"e",
 	"e",
 };
diff --git a/src/new_pins.c b/src/new_pins.c
index cdde0e335..fba206c68 100644
--- a/src/new_pins.c
+++ b/src/new_pins.c
@@ -14,6 +14,7 @@
 #include "driver/drv_public.h"
 #include "hal/hal_flashVars.h"
 #include "hal/hal_pins.h"
+#include "hal/hal_adc.h"
 
 
 //According to your need to modify the constants.
@@ -325,6 +326,9 @@ void PIN_SetPinRoleForPinIndex(int index, int role) {
 				HAL_PIN_PWM_Stop(index);
 			}
 			break;
+		case IOR_ADC:
+			// TODO: disable?
+			break;
 
 		default:
 			break;
@@ -401,6 +405,10 @@ void PIN_SetPinRoleForPinIndex(int index, int role) {
 			HAL_PIN_Setup_Output(index);
 		}
 			break;
+		case IOR_ADC:
+			// init ADC for given pin
+			HAL_ADC_Init(index);
+			break;
 		case IOR_PWM:
 			{
 				int channelIndex;
@@ -662,6 +670,10 @@ int CHANNEL_GetRoleForOutputChannel(int ch){
 #define EVENT_CB(ev)   if(handle->cb[ev])handle->cb[ev]((pinButton_s*)handle)
 
 #define PIN_TMR_DURATION       5
+#define PIN_TMR_LOOPS_PER_SECOND (1000/PIN_TMR_DURATION)
+#define ADC_SAMPLING_TICK_COUNT PIN_TMR_LOOPS_PER_SECOND
+
+static int g_next_adc_loop = 0;
 
 void PIN_Input_Handler(int pinIndex)
 {
@@ -819,6 +831,20 @@ void PIN_ticks(void *param)
 		}
 	}
 
+	g_next_adc_loop++;
+	if(g_next_adc_loop == ADC_SAMPLING_TICK_COUNT) {
+		g_next_adc_loop = 0;
+
+		for(i = 0; i < PLATFORM_GPIO_MAX; i++) {
+			if(g_cfg.pins.roles[i] == IOR_ADC) {
+				int value;
+
+				value = HAL_ADC_Read(i);
+
+				CHANNEL_Set(g_cfg.pins.channels[i],value, 0);
+			}
+		}
+	}
 
 	for(i = 0; i < PLATFORM_GPIO_MAX; i++) {
 #if 1
diff --git a/src/new_pins.h b/src/new_pins.h
index 1586da37a..94bb9460b 100644
--- a/src/new_pins.h
+++ b/src/new_pins.h
@@ -29,6 +29,7 @@ enum IORole {
 	IOR_BL0937_SEL,
 	IOR_BL0937_CF,
 	IOR_BL0937_CF1,
+	IOR_ADC,
 	IOR_Total_Options,
 };