diff --git a/cfirmata_esp32/cfirmata_esp32.ino b/cfirmata_esp32/cfirmata_esp32.ino
new file mode 100644
index 0000000..276f7c8
--- /dev/null
+++ b/cfirmata_esp32/cfirmata_esp32.ino
@@ -0,0 +1,214 @@
+//
+// configurablefirmata_esp32
+//
+// D. Yi @ 2023 5 30
+//
+
+#define WIRELESS
+
+#if defined(WIRELESS)
+//wi-fi
+#include <WiFi.h>
+
+//network!
+const char* ssid     = "esp1";
+const char* password = "1111100000";
+const int NETWORK_PORT = 27016;
+// IPAddress local_IP(192, 168, 137, 111);
+// IPAddress gateway(192, 168, 137, 1);
+// IPAddress subnet(255, 255, 255, 0);
+
+//wi-fi event handlers : re-connect automatically
+void WiFiStationConnected(WiFiEvent_t event, WiFiEventInfo_t info){
+  Serial.println("Connected to AP successfully!");
+}
+
+void WiFiGotIP(WiFiEvent_t event, WiFiEventInfo_t info){
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+  digitalWrite(2, LOW);
+}
+
+void WiFiStationDisconnected(WiFiEvent_t event, WiFiEventInfo_t info){
+  Serial.println("Disconnected from WiFi access point");
+  Serial.print("WiFi lost connection. Reason: ");
+  Serial.println(info.wifi_sta_disconnected.reason);
+  Serial.println("Trying to Reconnect");
+  WiFi.begin(ssid, password);
+  digitalWrite(2, HIGH);
+}
+#endif
+
+//firmata over wi-fi
+#include <ConfigurableFirmata.h>
+#if defined(WIRELESS)
+#include "utility/WiFiClientStream.h"
+#include "utility/WiFiServerStream.h"
+WiFiServerStream serverStream(NETWORK_PORT);
+
+//firmware update over the air
+#include <ArduinoOTA.h>
+#endif
+
+//handle digitalWrite
+byte previousPORT[TOTAL_PORTS];
+void digitalWriteCallback(byte port, int value)
+{
+  byte i;
+  byte currentPinValue, previousPinValue;
+
+  if (port < TOTAL_PORTS && value != previousPORT[port]) {
+    for (i = 0; i < 8; i++) {
+      currentPinValue = (byte) value & (1 << i);
+      previousPinValue = previousPORT[port] & (1 << i);
+      if (currentPinValue != previousPinValue) {
+        digitalWrite(i + (port * 8), currentPinValue);
+      }
+    }
+    previousPORT[port] = value;
+  }
+}
+
+////
+void setup()
+{
+  //pinmodes
+  //digital inputs
+  pinMode(23, INPUT_PULLUP);
+  pinMode(22, INPUT_PULLUP);
+  pinMode(21, INPUT_PULLUP);
+  pinMode(19, INPUT_PULLUP);
+
+  //digital outputs
+  pinMode(2, OUTPUT);    //build-in LED && also used as wifi indicator!
+#if defined(WIRELESS)
+  digitalWrite(2, HIGH);  //HIGH ==> LED ON ==> 'wifi. disconnected.'
+#else
+  digitalWrite(2, LOW);  //LOW ==> LED OFF
+#endif
+
+  //serial (for debug & info)
+  Serial.begin(57600);
+
+#if defined(WIRELESS)
+  // delete old config
+  WiFi.disconnect(true);
+
+  delay(1000);
+
+  WiFi.onEvent(WiFiStationConnected, WiFiEvent_t::ARDUINO_EVENT_WIFI_STA_CONNECTED);
+  WiFi.onEvent(WiFiGotIP, WiFiEvent_t::ARDUINO_EVENT_WIFI_STA_GOT_IP);
+  WiFi.onEvent(WiFiStationDisconnected, WiFiEvent_t::ARDUINO_EVENT_WIFI_STA_DISCONNECTED);
+
+  /* Remove WiFi event
+  Serial.print("WiFi Event ID: ");
+  Serial.println(eventID);
+  WiFi.removeEvent(eventID);*/
+
+  WiFi.begin(ssid, password);
+
+  Serial.println();
+  Serial.println();
+  Serial.println("Wait for WiFi... ");
+#endif
+
+  //firmata
+  Firmata.disableBlinkVersion();
+  Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);
+#if defined(WIRELESS)
+  Firmata.begin(serverStream);
+#else
+  Firmata.begin(Serial);
+#endif
+
+#if defined(WIRELESS)
+  //ota
+  ArduinoOTA.onStart([]() {
+    Serial.println("Start");
+  });
+  ArduinoOTA.onEnd([]() {
+    Serial.println("\nEnd");
+  });
+  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
+  });
+  ArduinoOTA.onError([](ota_error_t error) {
+    Serial.printf("Error[%u]: ", error);
+    if (error == OTA_AUTH_ERROR) Serial.println("Auth Failed");
+    else if (error == OTA_BEGIN_ERROR) Serial.println("Begin Failed");
+    else if (error == OTA_CONNECT_ERROR) Serial.println("Connect Failed");
+    else if (error == OTA_RECEIVE_ERROR) Serial.println("Receive Failed");
+    else if (error == OTA_END_ERROR) Serial.println("End Failed");
+  });
+  ArduinoOTA.begin();
+#endif
+}
+
+void loop()
+{
+  // loop frequency = 50hz (20 ms)
+  static unsigned long last = 0;
+  unsigned long now = millis();
+  if (now > last + 20) {
+    last = now;
+
+    //
+    static int counter = 0;
+    counter++;
+    if (counter == 1000) counter = 0;
+
+    //digital
+    //==> https://randomnerdtutorials.com/esp8266-pinout-reference-gpios/
+    byte port = 0;
+
+    static byte port0_prev = 0;
+    port = 0x00;
+    port |= (digitalRead(23) ? 0x01 : 0x00);
+    port |= (digitalRead(22) ? 0x02 : 0x00);
+    port |= (digitalRead(21) ? 0x04 : 0x00);
+    port |= (digitalRead(19) ? 0x08 : 0x00);
+    port |= (0 ? 0x10 : 0x00);
+    port |= (0 ? 0x20 : 0x00);
+    port |= (0 ? 0x40 : 0x00);
+    port |= (0 ? 0x80 : 0x00);
+    if (port0_prev != port) Firmata.sendDigitalPort(0, port);
+    port0_prev = port;
+
+    //send out alive counter every 1sec. (50 counts x 20ms == 1 sec.)
+    if (counter % 50 == 0) {
+      static int alivecounter = 0;
+      Firmata.sendAnalog(0, alivecounter);
+      alivecounter++;
+      if (alivecounter == 1000) alivecounter = 0;
+    }
+
+    //analog reads
+    Firmata.sendAnalog(1, analogRead(36));
+    Firmata.sendAnalog(2, analogRead(39));
+    Firmata.sendAnalog(3, analogRead(34));
+    Firmata.sendAnalog(4, analogRead(35));
+
+    //touch reads
+    Firmata.sendAnalog(5, touchRead(32)); //touch 9
+    Firmata.sendAnalog(6, touchRead(33)); //touch 8
+    Firmata.sendAnalog(7, touchRead(27)); //touch 7
+    Firmata.sendAnalog(8, touchRead(13)); //touch 4
+  }
+
+  //process firmata stream
+  while (Firmata.available()) {
+    Firmata.processInput();
+  }
+
+#if defined(WIRELESS)
+  //firmata over wi-fi
+  serverStream.maintain();
+
+  //
+  ArduinoOTA.handle();
+#endif
+
+  //for wdt
+  yield();
+}
diff --git a/cfirmata_esp.ino b/cfirmata_esp8266/cfirmata_esp8266.ino
similarity index 99%
rename from cfirmata_esp.ino
rename to cfirmata_esp8266/cfirmata_esp8266.ino
index 02d2342..49387e7 100644
--- a/cfirmata_esp.ino
+++ b/cfirmata_esp8266/cfirmata_esp8266.ino
@@ -26,14 +26,14 @@ void onWifiConnect(const WiFiEventStationModeGotIP& event) {
   Serial.print("IP address: ");
   Serial.println("Mac address: " + WiFi.macAddress());
   Serial.println(WiFi.localIP());
-  digitalWrite(2, HIGH);
+  digitalWrite(D4, HIGH);
 }
 
 void onWifiDisconnect(const WiFiEventStationModeDisconnected& event) {
   Serial.println("Disconnected from Wi-Fi, trying to reconnect...");
   WiFi.disconnect();
   WiFi.begin(ssid, password);
-  digitalWrite(2, LOW);
+  digitalWrite(D4, LOW);
 }
 #endif
 
diff --git a/pd/arduino-wifi-test-esp32.pd b/pd/arduino-wifi-test-esp32.pd
new file mode 100644
index 0000000..7ec8648
--- /dev/null
+++ b/pd/arduino-wifi-test-esp32.pd
@@ -0,0 +1,197 @@
+#N canvas 221 33 923 588 12;
+#X msg 154 238 disconnect;
+#X obj 381 39 bng 20 250 50 0 empty empty search\ &&\ connect 0 -10 0 12 #fcfcfc #000000 #000000;
+#N canvas 0 0 489 532 arduino 0;
+#X obj 19 77 zconf.browse;
+#X obj 19 290 zconf.resolve;
+#X msg 19 249 resolve _arduino._tcp. esp8266-0b5620 local.;
+#X obj 19 315 route resolve;
+#X obj 59 371 list split 1;
+#X obj 19 346 list split 5;
+#X obj 59 412 separate .;
+#X obj 59 437 t b a;
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+#X obj 59 493 outlet;
+#X text 134 489 connect msg. builder with IP & port number;
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+#X obj 19 199 t b a;
+#X msg 19 52 type \, type _arduino._tcp;
+#X msg 139 108 set \$1;
+#X obj 19 18 inlet;
+#X text 171 372 depends on: external: zconf \, else;
+#X text 171 324 mDNS discovery (a.k.a. zeroconf \, bonjour);
+#X connect 0 0 17 0;
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+#X coords 0 -1 1 1 185 80 1 200 60;
+#X restore 381 64 pd arduino mDNS discovery;
+#X obj 25 258 arduino-wifi;
+#X obj 106 283 tgl 20 0 empty empty connected? 23 10 0 12 #bbbbbb #000000 #000000 0 1;
+#X obj 106 308 bng 20 250 50 0 empty empty empty 0 -10 0 12 #fcfcfc #000000 #000000;
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+#X msg 25 137 digital 2 \$1;
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+#X floatatom 356 338 5 0 0 0 - - - 0;
+#X floatatom 25 113 5 0 0 0 - - - 0;
+#X text 97 112 D4 == GPIO2;
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+#X obj 55 508 tgl 20 0 empty empty D22 0 30 0 12 #ffe3c6 #000000 #000000 0 1;
+#X text 74 15 ==== digital OUTPUT ===;
+#X text 74 415 ==== digital INPUT ===;
+#X text 385 287 ==== analog INPUT ===;
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+#X obj 28 113 * 1023;
+#X obj 28 162 bng 20 250 50 0 empty empty live! 0 30 0 12 #fcfcfc #000000 #000000;
+#X text 84 20 ==== network STATUS ===;
+#X obj 28 58 inlet;
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+#X obj 510 206 print X!;
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