diff --git a/examples/receive_fsk/main/main.c b/examples/receive_fsk/main/main.c
index 4193d60..244a1f9 100644
--- a/examples/receive_fsk/main/main.c
+++ b/examples/receive_fsk/main/main.c
@@ -27,14 +27,16 @@ TaskHandle_t handle_interrupt;
 int total_packets_received = 0;
 static const char *TAG = "sx127x";
 
-void IRAM_ATTR handle_interrupt_fromisr(void *arg) {
+void IRAM_ATTR
+
+handle_interrupt_fromisr(void *arg) {
   xTaskResumeFromISR(handle_interrupt);
 }
 
 void handle_interrupt_task(void *arg) {
   while (1) {
     vTaskSuspend(NULL);
-    sx127x_handle_interrupt((sx127x *)arg);
+    sx127x_handle_interrupt((sx127x *) arg);
   }
 }
 
@@ -50,7 +52,13 @@ void rx_callback(sx127x *device, uint8_t *data, uint16_t data_length) {
 
   int32_t frequency_error;
   ESP_ERROR_CHECK(sx127x_rx_get_frequency_error(device, &frequency_error));
-  ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  int16_t rssi;
+  int code = sx127x_rx_get_packet_rssi(device, &rssi);
+  if (code == SX127X_ERR_NOT_FOUND) {
+    ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  } else {
+    ESP_LOGI(TAG, "received: %d %s rssi: %d freq_error: %" PRId32, data_length, payload, rssi, frequency_error);
+  }
   total_packets_received++;
 }
 
@@ -59,7 +67,7 @@ void setup_gpio_interrupts(gpio_num_t gpio, sx127x *device) {
   gpio_pulldown_en(gpio);
   gpio_pullup_dis(gpio);
   gpio_set_intr_type(gpio, GPIO_INTR_POSEDGE);
-  gpio_isr_handler_add(gpio, handle_interrupt_fromisr, (void *)device);
+  gpio_isr_handler_add(gpio, handle_interrupt_fromisr, (void *) device);
 }
 
 void app_main() {
@@ -89,7 +97,7 @@ void app_main() {
       .address_bits = 8,
       .dummy_bits = 0,
       .mode = 0};
-  spi_device_handle_t spi_device;   
+  spi_device_handle_t spi_device;
   ESP_ERROR_CHECK(spi_bus_add_device(SPI2_HOST, &dev_cfg, &spi_device));
   ESP_ERROR_CHECK(sx127x_create(spi_device, &device));
   ESP_ERROR_CHECK(sx127x_set_opmod(SX127x_MODE_SLEEP, SX127x_MODULATION_FSK, device));
@@ -110,6 +118,7 @@ void app_main() {
   ESP_ERROR_CHECK(sx127x_fsk_ook_rx_set_trigger(SX127X_RX_TRIGGER_RSSI_PREAMBLE, device));
   ESP_ERROR_CHECK(sx127x_fsk_ook_rx_set_rssi_config(SX127X_8, 0, device));
   ESP_ERROR_CHECK(sx127x_fsk_ook_rx_set_preamble_detector(true, 2, 0x0A, device));
+  ESP_ERROR_CHECK(sx127x_fsk_ook_rx_calibrate(device));
 
   sx127x_rx_set_callback(rx_callback, device);
 
@@ -121,9 +130,9 @@ void app_main() {
   }
 
   gpio_install_isr_service(0);
-  setup_gpio_interrupts((gpio_num_t)DIO0, device);
-  setup_gpio_interrupts((gpio_num_t)DIO1, device);
-  setup_gpio_interrupts((gpio_num_t)DIO2, device);
+  setup_gpio_interrupts((gpio_num_t) DIO0, device);
+  setup_gpio_interrupts((gpio_num_t) DIO1, device);
+  setup_gpio_interrupts((gpio_num_t) DIO2, device);
 
   ESP_ERROR_CHECK(sx127x_set_opmod(SX127x_MODE_RX_CONT, SX127x_MODULATION_FSK, device));
 }
diff --git a/examples/receive_fsk_beacon/main/main.c b/examples/receive_fsk_beacon/main/main.c
index a0329bd..ba1bbc2 100644
--- a/examples/receive_fsk_beacon/main/main.c
+++ b/examples/receive_fsk_beacon/main/main.c
@@ -50,7 +50,13 @@ void rx_callback(sx127x *device, uint8_t *data, uint16_t data_length) {
 
   int32_t frequency_error;
   ESP_ERROR_CHECK(sx127x_rx_get_frequency_error(device, &frequency_error));
-  ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  int16_t rssi;
+  int code = sx127x_rx_get_packet_rssi(device, &rssi);
+  if (code == SX127X_ERR_NOT_FOUND) {
+    ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  } else {
+    ESP_LOGI(TAG, "received: %d %s rssi: %d freq_error: %" PRId32, data_length, payload, rssi, frequency_error);
+  }
   total_packets_received++;
 }
 
diff --git a/examples/receive_fsk_filtered/main/main.c b/examples/receive_fsk_filtered/main/main.c
index a9c7603..b791832 100644
--- a/examples/receive_fsk_filtered/main/main.c
+++ b/examples/receive_fsk_filtered/main/main.c
@@ -50,7 +50,13 @@ void rx_callback(sx127x *device, uint8_t *data, uint16_t data_length) {
 
   int32_t frequency_error;
   ESP_ERROR_CHECK(sx127x_rx_get_frequency_error(device, &frequency_error));
-  ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  int16_t rssi;
+  int code = sx127x_rx_get_packet_rssi(device, &rssi);
+  if (code == SX127X_ERR_NOT_FOUND) {
+    ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  } else {
+    ESP_LOGI(TAG, "received: %d %s rssi: %d freq_error: %" PRId32, data_length, payload, rssi, frequency_error);
+  }
   total_packets_received++;
 }
 
diff --git a/examples/receive_fsk_fixed/main/main.c b/examples/receive_fsk_fixed/main/main.c
index a276aeb..f620e92 100644
--- a/examples/receive_fsk_fixed/main/main.c
+++ b/examples/receive_fsk_fixed/main/main.c
@@ -50,7 +50,13 @@ void rx_callback(sx127x *device, uint8_t *data, uint16_t data_length) {
 
   int32_t frequency_error;
   ESP_ERROR_CHECK(sx127x_rx_get_frequency_error(device, &frequency_error));
-  ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  int16_t rssi;
+  int code = sx127x_rx_get_packet_rssi(device, &rssi);
+  if (code == SX127X_ERR_NOT_FOUND) {
+    ESP_LOGI(TAG, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+  } else {
+    ESP_LOGI(TAG, "received: %d %s rssi: %d freq_error: %" PRId32, data_length, payload, rssi, frequency_error);
+  }
   total_packets_received++;
 }
 
diff --git a/examples/receive_fsk_raspberrypi/main.c b/examples/receive_fsk_raspberrypi/main.c
index c6d03d2..0f7a54d 100644
--- a/examples/receive_fsk_raspberrypi/main.c
+++ b/examples/receive_fsk_raspberrypi/main.c
@@ -18,6 +18,7 @@
 #define GPIO_DIO1_PIN 13
 #define GPIO_DIO2_PIN 19
 #define GPIO_DIO3_PIN 26
+#define GPIO_DIO4_PIN 5
 #define GPIO_DIO0_PIN 27
 #define GPIO_RESET_PIN 6
 #define GPIO_POLL_TIMEOUT (-1)
@@ -50,11 +51,15 @@ void rx_callback(sx127x *device, uint8_t *data, uint16_t data_length) {
     }
     payload[data_length * 2] = '\0';
 
-    int16_t rssi;
-    LINUX_NO_CODE_ERROR_CHECK(sx127x_rx_get_packet_rssi(device, &rssi));
     int32_t frequency_error;
     LINUX_NO_CODE_ERROR_CHECK(sx127x_rx_get_frequency_error(device, &frequency_error));
-    fprintf(stdout, "received: %d %s rssi: %d freq_error: %" PRId32 "\n", data_length, payload, rssi, frequency_error);
+    int16_t rssi;
+    int code = sx127x_rx_get_packet_rssi(device, &rssi);
+    if (code == SX127X_ERR_NOT_FOUND) {
+      fprintf(stdout, "received: %d %s freq_error: %" PRId32, data_length, payload, frequency_error);
+    } else {
+      fprintf(stdout, "received: %d %s rssi: %d freq_error: %" PRId32, data_length, payload, rssi, frequency_error);
+    }
 }
 
 int msleep(long msec) {
@@ -120,9 +125,9 @@ int setup_and_wait_for_interrupt(sx127x *device) {
         perror("unable to open device");
         return EXIT_FAILURE;
     }
-    uint8_t gpios[] = {GPIO_DIO0_PIN, GPIO_DIO1_PIN, GPIO_DIO2_PIN, GPIO_DIO3_PIN};
+    uint8_t gpios[] = {GPIO_DIO0_PIN, GPIO_DIO1_PIN, GPIO_DIO2_PIN, GPIO_DIO3_PIN, GPIO_DIO4_PIN};
     int gpios_length = sizeof(gpios);
-    struct pollfd pfd[4];
+    struct pollfd pfd[5];
     for (int i = 0; i < gpios_length; i++) {
         struct gpioevent_request rq;
         rq.lineoffset = gpios[i];
@@ -200,6 +205,7 @@ int main() {
     LINUX_ERROR_CHECK(sx127x_fsk_ook_rx_set_trigger(SX127X_RX_TRIGGER_RSSI_PREAMBLE, device));
     LINUX_ERROR_CHECK(sx127x_fsk_ook_rx_set_rssi_config(SX127X_8, 0, device));
     LINUX_ERROR_CHECK(sx127x_fsk_ook_rx_set_preamble_detector(true, 2, 0x0A, device));
+    LINUX_ERROR_CHECK(sx127x_fsk_ook_rx_calibrate(device));
 
     sx127x_rx_set_callback(rx_callback, device);
     LINUX_ERROR_CHECK(sx127x_set_opmod(SX127x_MODE_RX_CONT, SX127x_MODULATION_FSK, device));
diff --git a/examples/receive_ook/main/main.c b/examples/receive_ook/main/main.c
index 46a59a6..0ea18a8 100644
--- a/examples/receive_ook/main/main.c
+++ b/examples/receive_ook/main/main.c
@@ -15,12 +15,12 @@
 #define RST 23
 #define DIO0 26
 // older versions of TTGO require manual wiring of pins below
-//#define DIO1 33
-//#define DIO2 32
+#define DIO1 33
+#define DIO2 32
 
 // Heltec lora32 v2
-#define DIO1 35
-#define DIO2 34
+//#define DIO1 35
+//#define DIO2 34
 
 sx127x *device = NULL;
 TaskHandle_t handle_interrupt;