@@ -72,6 +72,9 @@ void setup() {
 zbAnalogDevice.setAnalogOutputDescription("Fan Speed (RPM)");
 zbAnalogDevice.setAnalogOutputResolution(1);
 
+// Set the min and max values for the analog output which is used by HA to limit the range of the analog output
+zbAnalogDevice.setAnalogOutputMinMax(-10000, 10000); //-10000 to 10000 RPM
+
 // If analog output cluster is added, set callback function for analog output change
 zbAnalogDevice.onAnalogOutputChange(onAnalogOutputChange);
 

@@ -1,5 +1,6 @@
 #include "ZigbeeAnalog.h"
 #if CONFIG_ZB_ENABLED
+#include <cfloat>
 
 ZigbeeAnalog::ZigbeeAnalog(uint8_t endpoint) : ZigbeeEP(endpoint) {
 _device_id = ESP_ZB_HA_SIMPLE_SENSOR_DEVICE_ID;
@@ -20,6 +21,8 @@ bool ZigbeeAnalog::addAnalogInput() {
 "Analog Input";
 uint32_t application_type = 0x00000000 | (ESP_ZB_ZCL_AI_GROUP_ID << 24);
 float resolution = 0.1; // Default resolution of 0.1
+float min = -FLT_MAX; // Default min value for float
+float max = FLT_MAX; // Default max value for float
 
 esp_err_t ret = esp_zb_analog_input_cluster_add_attr(esp_zb_analog_input_cluster, ESP_ZB_ZCL_ATTR_ANALOG_INPUT_DESCRIPTION_ID, (void *)default_description);
 if (ret != ESP_OK) {
@@ -39,11 +42,24 @@ bool ZigbeeAnalog::addAnalogInput() {
 return false;
 }
 
+ret = esp_zb_analog_input_cluster_add_attr(esp_zb_analog_input_cluster, ESP_ZB_ZCL_ATTR_ANALOG_INPUT_MIN_PRESENT_VALUE_ID, (void *)&min);
+if (ret != ESP_OK) {
+log_e("Failed to set min value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
+ret = esp_zb_analog_input_cluster_add_attr(esp_zb_analog_input_cluster, ESP_ZB_ZCL_ATTR_ANALOG_INPUT_MAX_PRESENT_VALUE_ID, (void *)&max);
+if (ret != ESP_OK) {
+log_e("Failed to set max value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
 ret = esp_zb_cluster_list_add_analog_input_cluster(_cluster_list, esp_zb_analog_input_cluster, ESP_ZB_ZCL_CLUSTER_SERVER_ROLE);
 if (ret != ESP_OK) {
 log_e("Failed to add Analog Input cluster: 0x%x: %s", ret, esp_err_to_name(ret));
 return false;
 }
+
 _analog_clusters |= ANALOG_INPUT;
 return true;
 }
@@ -76,6 +92,8 @@ bool ZigbeeAnalog::addAnalogOutput() {
 "Analog Output";
 uint32_t application_type = 0x00000000 | (ESP_ZB_ZCL_AO_GROUP_ID << 24);
 float resolution = 1; // Default resolution of 1
+float min = -FLT_MAX; // Default min value for float
+float max = FLT_MAX; // Default max value for float
 
 esp_err_t ret =
 esp_zb_analog_output_cluster_add_attr(esp_zb_analog_output_cluster, ESP_ZB_ZCL_ATTR_ANALOG_OUTPUT_DESCRIPTION_ID, (void *)default_description);
@@ -96,6 +114,18 @@ bool ZigbeeAnalog::addAnalogOutput() {
 return false;
 }
 
+ret = esp_zb_analog_output_cluster_add_attr(esp_zb_analog_output_cluster, ESP_ZB_ZCL_ATTR_ANALOG_OUTPUT_MIN_PRESENT_VALUE_ID, (void *)&min);
+if (ret != ESP_OK) {
+log_e("Failed to set min value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
+ret = esp_zb_analog_output_cluster_add_attr(esp_zb_analog_output_cluster, ESP_ZB_ZCL_ATTR_ANALOG_OUTPUT_MAX_PRESENT_VALUE_ID, (void *)&max);
+if (ret != ESP_OK) {
+log_e("Failed to set max value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
 ret = esp_zb_cluster_list_add_analog_output_cluster(_cluster_list, esp_zb_analog_output_cluster, ESP_ZB_ZCL_CLUSTER_SERVER_ROLE);
 if (ret != ESP_OK) {
 log_e("Failed to add Analog Output cluster: 0x%x: %s", ret, esp_err_to_name(ret));
@@ -376,4 +406,58 @@ bool ZigbeeAnalog::setAnalogOutputResolution(float resolution) {
 return true;
 }
 
+bool ZigbeeAnalog::setAnalogOutputMinMax(float min, float max) {
+if (!(_analog_clusters & ANALOG_OUTPUT)) {
+log_e("Analog Output cluster not added");
+return false;
+}
+
+esp_zb_attribute_list_t *analog_output_cluster =
+esp_zb_cluster_list_get_cluster(_cluster_list, ESP_ZB_ZCL_CLUSTER_ID_ANALOG_OUTPUT, ESP_ZB_ZCL_CLUSTER_SERVER_ROLE);
+if (analog_output_cluster == nullptr) {
+log_e("Failed to get analog output cluster");
+return false;
+}
+
+esp_err_t ret = esp_zb_cluster_update_attr(analog_output_cluster, ESP_ZB_ZCL_ATTR_ANALOG_OUTPUT_MIN_PRESENT_VALUE_ID, (void *)&min);
+if (ret != ESP_OK) {
+log_e("Failed to set min value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
+ret = esp_zb_cluster_update_attr(analog_output_cluster, ESP_ZB_ZCL_ATTR_ANALOG_OUTPUT_MAX_PRESENT_VALUE_ID, (void *)&max);
+if (ret != ESP_OK) {
+log_e("Failed to set max value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+return true;
+}
+
+bool ZigbeeAnalog::setAnalogInputMinMax(float min, float max) {
+if (!(_analog_clusters & ANALOG_INPUT)) {
+log_e("Analog Input cluster not added");
+return false;
+}
+
+esp_zb_attribute_list_t *analog_input_cluster =
+esp_zb_cluster_list_get_cluster(_cluster_list, ESP_ZB_ZCL_CLUSTER_ID_ANALOG_INPUT, ESP_ZB_ZCL_CLUSTER_SERVER_ROLE);
+if (analog_input_cluster == nullptr) {
+log_e("Failed to get analog input cluster");
+return false;
+}
+
+esp_err_t ret = esp_zb_cluster_update_attr(analog_input_cluster, ESP_ZB_ZCL_ATTR_ANALOG_INPUT_MIN_PRESENT_VALUE_ID, (void *)&min);
+if (ret != ESP_OK) {
+log_e("Failed to set min value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+
+ret = esp_zb_cluster_update_attr(analog_input_cluster, ESP_ZB_ZCL_ATTR_ANALOG_INPUT_MAX_PRESENT_VALUE_ID, (void *)&max);
+if (ret != ESP_OK) {
+log_e("Failed to set max value: 0x%x: %s", ret, esp_err_to_name(ret));
+return false;
+}
+return true;
+}
+
 #endif // CONFIG_ZB_ENABLED

@@ -41,6 +41,10 @@ class ZigbeeAnalog : public ZigbeeEP {
 bool setAnalogOutputDescription(const char *description);
 bool setAnalogOutputResolution(float resolution);
 
+// Set the min and max values for the analog Input/Output
+bool setAnalogOutputMinMax(float min, float max);
+bool setAnalogInputMinMax(float min, float max);
+
 // Use to set a cb function to be called on analog output change
 void onAnalogOutputChange(void (*callback)(float analog)) {
 _on_analog_output_change = callback;