diff --git a/ESP32_Spectrum_Display_01.ino b/ESP32_Spectrum_Display_01.ino
new file mode 100644
index 0000000..f3ffeff
--- /dev/null
+++ b/ESP32_Spectrum_Display_01.ino
@@ -0,0 +1,83 @@
+/* ESP8266/32 Audio Spectrum Analyser on an SSD1306/SH1106 Display
+ * The MIT License (MIT) Copyright (c) 2017 by David Bird. 
+ * The formulation and display of an AUdio Spectrum using an ESp8266 or ESP32 and SSD1306 or SH1106 OLED Display using a Fast Fourier Transform
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files 
+ * (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, 
+ * publish, distribute, but not to use it commercially for profit making or to sub-license and/or to sell copies of the Software or to 
+ * permit persons to whom the Software is furnished to do so, subject to the following conditions:  
+ * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+ * See more at http://dsbird.org.uk 
+*/
+
+#include <Wire.h>
+#include "arduinoFFT.h" // Standard Arduino FFT library
+arduinoFFT FFT = arduinoFFT();
+/////////////////////////////////////////////////////////////////////////
+// Comment out the display your nNOT using e.g. if you have a 1.3" display comment out the SSD1306 library and object
+#include "SH1106.h"     // https://github.com/squix78/esp8266-oled-ssd1306
+SH1106 display(0x3c, 21,22); // 1.3" OLED display object definition (address, SDA, SCL) Connect OLED SDA , SCL pins to ESP SDA, SCL pins
+
+//#include "SSD1306.h"  // https://github.com/squix78/esp8266-oled-ssd1306
+//SSD1306 display(0x3c, 21,22);  // 0.96" OLED display object definition (address, SDA, SCL) Connect OLED SDA , SCL pins to ESP SDA, SCL pins
+/////////////////////////////////////////////////////////////////////////
+#define SAMPLES 256              //Must be a power of 2
+#define SAMPLING_FREQUENCY 10000 //Hz, must be 10000 or less due to ADC conversion time. Determines maximum frequency that can be analysed by the FFT.
+#define amplitude 50
+unsigned int sampling_period_us;
+unsigned long microseconds;
+byte peak[] = {0,0,0,0,0,0,0};
+double vReal[SAMPLES];
+double vImag[SAMPLES];
+unsigned long newTime, oldTime;
+/////////////////////////////////////////////////////////////////////////
+void setup() {
+  Serial.begin(115200);
+  Wire.begin(21,22); // SDA, SCL
+  display.init();
+  display.setFont(ArialMT_Plain_10);
+  display.flipScreenVertically(); // Adjust to suit or remove
+  sampling_period_us = round(1000000 * (1.0 / SAMPLING_FREQUENCY));
+}
+
+void loop() {
+  display.clear();
+  display.drawString(0,0,"0.1 0.2 0.5 1K  2K  4K  8K");
+  for (int i = 0; i < SAMPLES; i++) {
+    newTime = micros()-oldTime;
+    oldTime = newTime;
+    vReal[i] = analogRead(A0); // A conversion takes about 1mS on an ESP8266
+    vImag[i] = 0;
+    while (micros() < (newTime + sampling_period_us)) { /* do nothing to wait */ }
+  }
+  FFT.Windowing(vReal, SAMPLES, FFT_WIN_TYP_HAMMING, FFT_FORWARD);
+  FFT.Compute(vReal, vImag, SAMPLES, FFT_FORWARD);
+  FFT.ComplexToMagnitude(vReal, vImag, SAMPLES);
+  for (int i = 2; i < (SAMPLES/2); i++){ // Don't use sample 0 and only first SAMPLES/2 are usable. Each array eleement represents a frequency and its value the amplitude.
+    if (vReal[i] > 200) { // Add a crude noise filter, 4 x amplitude or more
+      if (i<=5 )             displayBand(0,(int)vReal[i]/amplitude); // 125Hz
+      if (i >5   && i<=12 )  displayBand(1,(int)vReal[i]/amplitude); // 250Hz
+      if (i >12  && i<=32 )  displayBand(2,(int)vReal[i]/amplitude); // 500Hz
+      if (i >32  && i<=62 )  displayBand(3,(int)vReal[i]/amplitude); // 1000Hz
+      if (i >62  && i<=105 ) displayBand(4,(int)vReal[i]/amplitude); // 2000Hz
+      if (i >105 && i<=120 ) displayBand(5,(int)vReal[i]/amplitude); // 4000Hz
+      if (i >120 && i<=146 ) displayBand(6,(int)vReal[i]/amplitude); // 8000Hz
+      //Serial.println(i);
+    }
+    for (byte band = 0; band <= 6; band++) display.drawHorizontalLine(18*band,64-peak[band],14);
+  }
+  if (millis()%4 == 0) {for (byte band = 0; band <= 6; band++) {if (peak[band] > 0) peak[band] -= 1;}} // Decay the peak
+  display.display();
+}
+
+void displayBand(int band, int dsize){
+  int dmax = 50;
+  if (dsize > dmax) dsize = dmax;
+  for (int s = 0; s <= dsize; s=s+2){display.drawHorizontalLine(18*band,64-s, 14);}
+  if (dsize > peak[band]) {peak[band] = dsize;}
+}
+
+
diff --git a/ESP8266_Spectrum_Display_01.ino b/ESP8266_Spectrum_Display_01.ino
new file mode 100644
index 0000000..18c2c23
--- /dev/null
+++ b/ESP8266_Spectrum_Display_01.ino
@@ -0,0 +1,83 @@
+/* ESP8266/32 Audio Spectrum Analyser on an SSD1306/SH1106 Display
+ * The MIT License (MIT) Copyright (c) 2017 by David Bird. 
+ * The formulation and display of an AUdio Spectrum using an ESp8266 or ESP32 and SSD1306 or SH1106 OLED Display using a Fast Fourier Transform
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files 
+ * (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, 
+ * publish, distribute, but not to use it commercially for profit making or to sub-license and/or to sell copies of the Software or to 
+ * permit persons to whom the Software is furnished to do so, subject to the following conditions:  
+ * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+ * See more at http://dsbird.org.uk 
+*/
+
+#include <Wire.h>
+#include "arduinoFFT.h" // Standard Arduino FFT library
+arduinoFFT FFT = arduinoFFT();
+/////////////////////////////////////////////////////////////////////////
+// Comment out the display your nNOT using e.g. if you have a 1.3" display comment out the SSD1306 library and object
+#include "SH1106.h"     // https://github.com/squix78/esp8266-oled-ssd1306
+SH1106 display(0x3c, D3,D4); // 1.3" OLED display object definition (address, SDA, SCL) Connect OLED SDA , SCL pins to ESP SDA, SCL pins
+
+//#include "SSD1306.h"  // https://github.com/squix78/esp8266-oled-ssd1306
+//SSD1306 display(0x3c, D3,D4);  // 0.96" OLED display object definition (address, SDA, SCL) Connect OLED SDA , SCL pins to ESP SDA, SCL pins
+/////////////////////////////////////////////////////////////////////////
+#define SAMPLES 256              //Must be a power of 2
+#define SAMPLING_FREQUENCY 10000 //Hz, must be 10000 or less due to ADC conversion time. Determines maximum frequency that can be analysed by the FFT.
+#define amplitude 50
+unsigned int sampling_period_us;
+unsigned long microseconds;
+byte peak[] = {0,0,0,0,0,0,0};
+double vReal[SAMPLES];
+double vImag[SAMPLES];
+unsigned long newTime, oldTime;
+/////////////////////////////////////////////////////////////////////////
+void setup() {
+  Serial.begin(115200);
+  Wire.begin(5,4); // SDA, SCL
+  display.init();
+  display.setFont(ArialMT_Plain_10);
+  display.flipScreenVertically(); // Adjust to suit or remove
+  sampling_period_us = round(1000000 * (1.0 / SAMPLING_FREQUENCY));
+}
+
+void loop() {
+  display.clear();
+  display.drawString(0,0,"0.1 0.2 0.5 1K  2K  4K  8K");
+  for (int i = 0; i < SAMPLES; i++) {
+    newTime = micros()-oldTime;
+    oldTime = newTime;
+    vReal[i] = analogRead(A0); // A conversion takes about 1mS on an ESP8266
+    vImag[i] = 0;
+    while (micros() < (newTime + sampling_period_us)) { /* do nothing to wait */ }
+  }
+  FFT.Windowing(vReal, SAMPLES, FFT_WIN_TYP_HAMMING, FFT_FORWARD);
+  FFT.Compute(vReal, vImag, SAMPLES, FFT_FORWARD);
+  FFT.ComplexToMagnitude(vReal, vImag, SAMPLES);
+  for (int i = 2; i < (SAMPLES/2); i++){ // Don't use sample 0 and only first SAMPLES/2 are usable. Each array eleement represents a frequency and its value the amplitude.
+    if (vReal[i] > 200) { // Add a crude noise filter, 4 x amplitude or more
+      if (i<=5 )             displayBand(0,(int)vReal[i]/amplitude); // 125Hz
+      if (i >5   && i<=12 )  displayBand(1,(int)vReal[i]/amplitude); // 250Hz
+      if (i >12  && i<=32 )  displayBand(2,(int)vReal[i]/amplitude); // 500Hz
+      if (i >32  && i<=62 )  displayBand(3,(int)vReal[i]/amplitude); // 1000Hz
+      if (i >62  && i<=105 ) displayBand(4,(int)vReal[i]/amplitude); // 2000Hz
+      if (i >105 && i<=120 ) displayBand(5,(int)vReal[i]/amplitude); // 4000Hz
+      if (i >120 && i<=146 ) displayBand(6,(int)vReal[i]/amplitude); // 8000Hz
+      //Serial.println(i);
+    }
+    for (byte band = 0; band <= 6; band++) display.drawHorizontalLine(18*band,64-peak[band],14);
+  }
+  if (millis()%4 == 0) {for (byte band = 0; band <= 6; band++) {if (peak[band] > 0) peak[band] -= 1;}} // Decay the peak
+  display.display();
+}
+
+void displayBand(int band, int dsize){
+  int dmax = 50;
+  if (dsize > dmax) dsize = dmax;
+  for (int s = 0; s <= dsize; s=s+2){display.drawHorizontalLine(18*band,64-s, 14);}
+  if (dsize > peak[band]) {peak[band] = dsize;}
+}
+
+
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