mcuw · mcuw · May 31, 2026 · May 31, 2026
diff --git a/README.md b/README.md
@@ -48,6 +48,7 @@ You can use these links to buy a developer board. If you want to support this pr
 
 - ESP32 P4 with dual-core processor up to 400 MHz
   - [10.1" ESP32-P4 LCD Display Development Board](https://s.click.aliexpress.com/e/_c2vAKbXD)* with 1280x800 Capacitive Touch Screen, Wi-Fi 6, battery and speaker
+  - [JC-ESP32P4-M3-DEV](https://s.click.aliexpress.com/e/_c39YU9i9)* GUITION ESP32-P4 with ESP32-C6 Mini, Wi-Fi 6, TF card slot, Speaker header, Li-Ion Battery connector, microphone
 
 ## Protoyping
 

diff --git a/boards/esp32-c6-n16.json b/boards/esp32-c6-n16.json
@@ -15,7 +15,8 @@
   },
   "connectivity": [
     "wifi",
-    "bluetooth"
+    "bluetooth",
+    "openthread"
   ],
   "frameworks": [
     "arduino",

diff --git a/boards/esp32-c6-n4.json b/boards/esp32-c6-n4.json
@@ -15,7 +15,8 @@
   },
   "connectivity": [
     "wifi",
-    "bluetooth"
+    "bluetooth",
+    "openthread"
   ],
   "frameworks": [
     "arduino",

diff --git a/extra_configs/base_envs.ini b/extra_configs/base_envs.ini
@@ -6,32 +6,28 @@
   extends = env
   build_flags =
     ${env.build_flags}
-    -D ESP32
 
 ; ESP32-C6 based modules
 [esp32c6]
   extends = env
   build_flags =
     ${env.build_flags}
-    -D ESP32C6
 
 ; ESP32-S2 based modules
 [esp32s2]
   extends = env
   build_flags =
     ${env.build_flags}
-    -D ESP32S2
 
 ; ESP32-S3 based modules
 [esp32s3]
   extends = env
   build_flags =
     ${env.build_flags}
-    -D ESP32S3
 
 ; ESP32-P4 based modules
 [esp32p4]
   extends = env
   build_flags =
     ${env.build_flags}
-    -D ESP32P4
+  upload_speed = 460800
diff --git a/platformio.ini b/platformio.ini
@@ -269,10 +269,20 @@ extends = esp32p4
 board = esp32-p4_r3
 board_build.partitions = partitions/partitions_16mb_ota_phy.csv
 
-; ESP32-P4 ESP32-P4 Function EV Board with 16MB flash
+; ESP32-P4 Function EV Board with 16MB flash
 ; https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32p4/esp32-p4-function-ev-board/index.html
 ; board: https://github.com/pioarduino/platform-espressif32/blob/main/boards/esp32-p4-evboard.json
 [env:esp32_p4_evboard]
 extends = esp32p4
 board = esp32-p4-evboard
 board_build.partitions = partitions/partitions_16mb_ota_phy.csv
+upload_speed = 1500000
+
+; ESP32-P4 JC-ESP32P4-M3-DEV
+; board: https://github.com/pioarduino/platform-espressif32/blob/main/boards/esp32-p4.json
+[env:esp32_p4_m3_dev]
+extends = esp32p4
+board = esp32-p4
+board_build.partitions = partitions/partitions_16mb_ota_phy.csv
+board_build.variant = ${PIOENV}
+board_build.variants_dir = variants
diff --git a/variants/esp32_p4_m3_dev/pins_arduino.h b/variants/esp32_p4_m3_dev/pins_arduino.h
@@ -0,0 +1,129 @@
+// ref: .platformio/packages/framework-arduinoespressif32/variants/esp32p4/pins_arduino.h
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define ESP32_P4_M3_DEV
+
+// ESP32-C6 mini, SDIO
+static const uint8_t C6_CLK = 18; // CHECKED
+static const uint8_t C6_CMD = 19; // CHECKED
+static const uint8_t C6_D0 = 14; // CHECKED
+static const uint8_t C6_D1 = 15; // CHECKED
+static const uint8_t C6_D2 = 16; // CHECKED
+static const uint8_t C6_D3 = 17; // CHECKED
+static const uint8_t C6_RESET = 54; // CHECKED
+static const uint8_t C6_IO2 = 6; // pin 10
+
+// Expand IO
+static const uint8_t C6_RX = 20; // C6_U0RXD, pin 16, Expand IO 20
+static const uint8_t C6_TX = 21; // C6_U0TXD,pin 17, Expand IO 22
+static const uint8_t C6_IO9 = 9; // C6_IO9, pin 18, Expand IO 24
+// static const uint8_t C6_CHIP_PU = ; // CHIP_PU, Expand IO 26
+static const uint8_t SDA = 7; // CHECKED, Expand IO 23
+static const uint8_t SCL = 8; // CHECKED, Expand IO 25
+
+// Ethernet (IP101 PHY, CLK_EXT_IN mode)
+static const uint8_t ETH_MDC = 31; // CHECKED
+static const uint8_t ETH_MDIO = 52; // CHECKED
+static const uint8_t ETH_POWER = 51; // CHECKED
+static const uint8_t ETH_CLK = 50; // CHECKED
+
+static const uint8_t A0 = 16;
+static const uint8_t A1 = 17;
+static const uint8_t A2 = 18;
+static const uint8_t A3 = 19;
+static const uint8_t A4 = 20;
+static const uint8_t A5 = 21;
+static const uint8_t A6 = 22;
+static const uint8_t A7 = 23;
+static const uint8_t A8 = 49;
+static const uint8_t A9 = 50;
+static const uint8_t A10 = 51;
+static const uint8_t A11 = 52;
+static const uint8_t A12 = 53;
+static const uint8_t A13 = 54;
+
+static const uint8_t T0 = 2;
+static const uint8_t T1 = 3;
+static const uint8_t T2 = 4;
+static const uint8_t T3 = 5;
+static const uint8_t T4 = 6;
+static const uint8_t T5 = 7;
+static const uint8_t T6 = 8;
+static const uint8_t T7 = 9;
+static const uint8_t T8 = 10;
+static const uint8_t T9 = 11;
+static const uint8_t T10 = 12;
+static const uint8_t T11 = 13;
+static const uint8_t T12 = 14;
+static const uint8_t T13 = 15;
+
+// ES8311 mono audio codec
+static const uint8_t ES8311_I2C_SDA = SDA; // CHECKED
+static const uint8_t ES8311_I2C_SCL = SCL; // CHECKED
+static const uint8_t ES8311_PA_CTRL = 11; // CHECKED
+static const uint8_t ES8311_ADDRESS = 0x18; // CHECKED
+
+// SPI
+// Use GPIOs 36 or lower on the P4 DevKit to avoid LDO power issues with high numbered GPIOs.
+static const uint8_t SCK = 36;
+static const uint8_t MISO = 33;
+static const uint8_t MOSI = 32;
+static const uint8_t SS = 26;
+
+// SD card
+static const uint8_t SD_D0 = 39; // pin 59, CHECKED
+static const uint8_t SD_D1 = 40; // pin 60, CHECKED
+static const uint8_t SD_D2 = 41; // pin 61, CHECKED
+static const uint8_t SD_D3 = 42; // pin 62, CHECKED
+static const uint8_t SD_CMD = 44; // pin 64, CHECKED
+static const uint8_t SD_CLK = 43; // pin 63, CHECKED
+
+// ES7210 I2S audio
+static const uint8_t I2S_MCK_IO = 13; // I2S_MCLK
+static const uint8_t I2S_BCK_IO = 12; // I2S_SCLK
+static const uint8_t I2S_DI_IO = 48; // ES7210_SDOUT, pin 68
+static const uint8_t I2S_WS_IO = 10; // I2S_LRCK
+static const uint8_t I2S_DO_IO = 9; // I2S_DSDIN
+
+static const uint8_t TX = 37; // CHECKED, pin 56
+static const uint8_t RX = 38; // CHECKED, pin 57
+static const uint8_t TX1 = 26; // pin 45
+static const uint8_t RX1 = 27; // pin 46
+
+static const uint8_t CHIP_PU = 0;
+static const uint8_t BOOT_MODE = 35; // pin 54
+
+static const uint8_t TOUCH = 21; // pin 22
+static const uint8_t TOUCH_RESET = 22; // pin 23
+
+static const uint8_t LCD_PWM = 23; // pin 24
+
+//SDMMC
+#define BOARD_HAS_SDMMC
+static const uint8_t BOARD_SDMMC_SLOT = 0;
+static const uint8_t BOARD_SDMMC_POWER_CHANNEL = 4;
+static const uint8_t BOARD_SDMMC_POWER_PIN = 45;
+#define BOARD_SDMMC_POWER_ON_LEVEL  LOW
+
+
+// TODO: assign pins for DSI interface
+// static const uint8_t DSI_DATA1_P = ; // pin 26
+// static const uint8_t DSI_DATA1_N = ; // pin 27
+// static const uint8_t DSI_CLK_N = ; // pin 28
+// static const uint8_t DSI_CLK_P = ; // pin 29
+// static const uint8_t DSI_DATA0_P = ; // pin 30
+// static const uint8_t DSI_DATA0_N = ; // pin 31
+
+// TODO: assign pins for CSI interface
+// static const uint8_t CSI_DATA1_P = ; // pin 38
+// static const uint8_t CSI_DATA1_N = ; // pin 37
+// static const uint8_t CSI_CLK_N = ; // pin 36
+// static const uint8_t CSI_CLK_P = ; // pin 35
+// static const uint8_t CSI_DATA0_P = ; // pin 34
+
+
+#endif /* Pins_Arduino_h */
+