diff --git a/platformio.ini b/platformio.ini
index 80aa00b..b214474 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,6 +10,7 @@
 
 [platformio]
 default_envs = tinypico, lolin32
+; default_envs = esp32-s3-devkitc-1_DIY1, esp32dev_DIY1
 extra_configs =
   platformio_override.ini
 
@@ -32,3 +33,46 @@ board = lolin32
 platform = espressif32@3.4.0
 build_flags = -Ofast -D USE_I2S_MIC_INPUT -D USE_ESP_NOW
 lib_ignore = indicator_led_pico
+
+[env:esp32dev_DIY1]
+board = esp32dev
+platform = espressif32@3.4.0
+build_flags = -Ofast
+            -D USE_I2S_MIC_INPUT
+            -D USE_ESP_NOW
+            -D I2S_MIC_SERIAL_CLOCK=GPIO_NUM_22
+            -D I2S_MIC_LEFT_RIGHT_CLOCK=GPIO_NUM_21
+            -D I2S_MIC_SERIAL_DATA=GPIO_NUM_23
+            -D I2S_SPEAKER_SERIAL_CLOCK=GPIO_NUM_22
+            -D I2S_SPEAKER_LEFT_RIGHT_CLOCK=GPIO_NUM_21
+            -D I2S_SPEAKER_SERIAL_DATA=GPIO_NUM_4
+            -D I2S_SPEAKER_SD_PIN=-1
+            -D GPIO_TRANSMIT_BUTTON=GPIO_NUM_33
+lib_ignore = indicator_led_pico
+
+monitor_port = COM3
+upload_port = COM3
+upload_speed = 921600
+
+[env:esp32-s3-devkitc-1_DIY1]
+board = esp32-s3-devkitc-1
+## https://github.com/espressif/arduino-esp32/issues/7165#issuecomment-1222912986
+platform  = https://github.com/Jason2866/platform-espressif32.git
+build_flags = -Ofast
+            -D USE_I2S_MIC_INPUT
+            -D USE_ESP_NOW
+            -D I2S_MIC_SERIAL_CLOCK=GPIO_NUM_7
+            -D I2S_MIC_LEFT_RIGHT_CLOCK=GPIO_NUM_6
+            -D I2S_MIC_SERIAL_DATA=GPIO_NUM_4
+            -D I2S_SPEAKER_SERIAL_CLOCK=GPIO_NUM_7
+            -D I2S_SPEAKER_LEFT_RIGHT_CLOCK=GPIO_NUM_6
+            -D I2S_SPEAKER_SERIAL_DATA=GPIO_NUM_5
+            -D I2S_SPEAKER_SD_PIN=-1
+            -D GPIO_TRANSMIT_BUTTON=GPIO_NUM_15
+lib_ignore = indicator_led_pico
+
+monitor_port = COM20 ; COM work
+upload_port = COM20 ; COM
+;monitor_port = COM26 ; USB home
+;upload_port = COM26 ; USB
+upload_speed = 921600
diff --git a/src/config.h b/src/config.h
index 7b6d047..eb731a2 100644
--- a/src/config.h
+++ b/src/config.h
@@ -18,23 +18,39 @@
 // Generally they will default to LEFT - but you may need to attach the L/R pin to GND
 #define I2S_MIC_CHANNEL I2S_CHANNEL_FMT_ONLY_LEFT
 // #define I2S_MIC_CHANNEL I2S_CHANNEL_FMT_ONLY_RIGHT
+#ifndef I2S_MIC_SERIAL_CLOCK
 #define I2S_MIC_SERIAL_CLOCK GPIO_NUM_18
+#endif
+#ifndef I2S_MIC_LEFT_RIGHT_CLOCK
 #define I2S_MIC_LEFT_RIGHT_CLOCK GPIO_NUM_19
+#endif
+#ifndef I2S_MIC_SERIAL_DATA
 #define I2S_MIC_SERIAL_DATA GPIO_NUM_21
+#endif
 
 // Analog Microphone Settings - ADC1_CHANNEL_7 is GPIO35
 #define ADC_MIC_CHANNEL ADC1_CHANNEL_7
 
 // speaker settings
 #define USE_I2S_SPEAKER_OUTPUT
+#ifndef I2S_SPEAKER_SERIAL_CLOCK
 #define I2S_SPEAKER_SERIAL_CLOCK GPIO_NUM_18
+#endif
+#ifndef I2S_SPEAKER_LEFT_RIGHT_CLOCK
 #define I2S_SPEAKER_LEFT_RIGHT_CLOCK GPIO_NUM_19
+#endif
+#ifndef I2S_SPEAKER_SERIAL_DATA
 #define I2S_SPEAKER_SERIAL_DATA GPIO_NUM_5
+#endif
 // Shutdown line if you have this wired up or -1 if you don't
+#ifndef I2S_SPEAKER_SD_PIN
 #define I2S_SPEAKER_SD_PIN GPIO_NUM_22
+#endif
 
 // transmit button
+#ifndef GPIO_TRANSMIT_BUTTON
 #define GPIO_TRANSMIT_BUTTON 23
+#endif
 
 // Which LED pin do you want to use? TinyPico LED or the builtin LED of a generic ESP32 board?
 // Comment out this line to use the builtin LED of a generic ESP32 board