fixed compilation

Author: Damien Laidin

examples/ESP32Send/ESP32Send.ino

@@ -144,10 +144,11 @@ void onSendingCallback(void *chirp, uint8_t *payload, size_t length, uint8_t cha
 
 void onSentCallback(void *chirp, uint8_t *payload, size_t length, uint8_t channel)
 {
-  char *data = chirp_sdk_as_string((chirp_sdk_t *)chirp, payload, length);
+  char *data = (char *)calloc(length + 1, sizeof(uint8_t));
+  memcpy(data, payload, length * sizeof(uint8_t));
   Serial.printf("Send data: %s\n", data);
+  free(data);
   digitalWrite(LED_PIN, LOW);
-  chirp_sdk_free(data);
 }
 
 void setupChirp()

examples/MKRZeroSend/MKRZeroSend.ino

@@ -109,8 +109,8 @@ void loop()
     for (int i = 0; i < BUFFER_SIZE / 2; i++)
     {
       int value = tmpBuffer[i] * INT16_MAX;
-      buffer[next][i * 2] = value;
-      buffer[next][i * 2 + 1] = value;
+      buffer[nextBufferIndex][i * 2] = value;
+      buffer[nextBufferIndex][i * 2 + 1] = value;
     }
 
     dma_complete = false;

examples/Nano33SenseReceive/Nano33SenseReceive.ino

@@ -156,5 +156,7 @@ void setupChirp(void)
   chirpErrorHandler(err);
 
   Serial.println("Chirp SDK initialised.");
+  Serial.println(chirp_sdk_get_version());
+  Serial.println(chirp_sdk_get_build_number());
   Serial.flush();
 }