create variant for magicbit board (#2987)

* create varient for magicbit board

* update boards.txt

boards.txt

@@ -230,7 +230,6 @@ esp32wrover.menu.DebugLevel.verbose=Verbose
 esp32wrover.menu.DebugLevel.verbose.build.code_debug=5
 
 ##############################################################
-
 pico32.name=ESP32 Pico Kit
 
 pico32.upload.tool=esptool_py
@@ -353,7 +352,41 @@ tinypico.menu.DebugLevel.verbose=Verbose
 tinypico.menu.DebugLevel.verbose.build.code_debug=5
 
 ##############################################################
-
+magicbit.name=MagicBit
+
+magicbit.upload.tool=esptool_py
+magicbit.upload.maximum_size=1310720
+magicbit.upload.maximum_data_size=327680
+magicbit.upload.wait_for_upload_port=true
+
+magicbit.serial.disableDTR=true
+magicbit.serial.disableRTS=true
+
+magicbit.build.mcu=esp32
+magicbit.build.core=esp32
+magicbit.build.variant=esp32
+magicbit.build.board=ESP32_DEV
+
+magicbit.build.f_cpu=240000000L
+magicbit.build.flash_size=4MB
+magicbit.build.flash_freq=40m
+magicbit.build.flash_mode=dio
+magicbit.build.boot=dio
+magicbit.build.partitions=default
+
+magicbit.menu.CPUFreq.240=240MHz (WiFi/BT)
+magicbit.menu.CPUFreq.240.build.f_cpu=240000000L
+magicbit.menu.CPUFreq.160=160MHz (WiFi/BT)
+magicbit.menu.CPUFreq.160.build.f_cpu=160000000L
+magicbit.menu.CPUFreq.80=80MHz (WiFi/BT)
+magicbit.menu.CPUFreq.80.build.f_cpu=80000000L
+magicbit.menu.CPUFreq.40=40MHz (40MHz XTAL)
+
+magicbit.menu.UploadSpeed.921600=921600
+magicbit.menu.UploadSpeed.921600.upload.speed=921600
+magicbit.menu.UploadSpeed.115200=115200
+magicbit.menu.UploadSpeed.115200.upload.speed=115200
+##############################################################
 turta_iot_node.name=Turta IoT Node
 
 turta_iot_node.upload.tool=esptool_py

variants/magicbit/pins_arduino.h

+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define EXTERNAL_NUM_INTERRUPTS 16
+#define NUM_DIGITAL_PINS        40
+#define NUM_ANALOG_INPUTS       16
+
+#define analogInputToDigitalPin(p)  (((p)<20)?(esp32_adc2gpio[(p)]):-1)
+#define digitalPinToInterrupt(p)    (((p)<40)?(p):-1)
+#define digitalPinHasPWM(p)         (p < 34)
+
+static const uint8_t TX = 1;
+static const uint8_t RX = 3;
+
+static const uint8_t SDA = 21;
+static const uint8_t SCL = 22;
+
+static const uint8_t SS    = 5;
+static const uint8_t MOSI  = 23;
+static const uint8_t MISO  = 19;
+static const uint8_t SCK   = 18;
+
+static const uint8_t A0 = 36;
+static const uint8_t A3 = 39;
+static const uint8_t A4 = 32;
+static const uint8_t A5 = 33;
+static const uint8_t A6 = 34;
+static const uint8_t A7 = 35;
+static const uint8_t A10 = 4;
+static const uint8_t A11 = 0;
+static const uint8_t A12 = 2;
+static const uint8_t A13 = 15;
+static const uint8_t A14 = 13;
+static const uint8_t A15 = 12;
+static const uint8_t A16 = 14;
+static const uint8_t A17 = 27;
+static const uint8_t A18 = 25;
+static const uint8_t A19 = 26;
+
+static const uint8_t T0 = 4;
+static const uint8_t T1 = 0;
+static const uint8_t T2 = 2;
+static const uint8_t T3 = 15;
+static const uint8_t T4 = 13;
+static const uint8_t T5 = 12;
+static const uint8_t T6 = 14;
+static const uint8_t T7 = 27;
+static const uint8_t T8 = 33;
+static const uint8_t T9 = 32;
+
+static const uint8_t DAC1 = 25;
+static const uint8_t DAC2 = 26;
+
+static const uint8_t BUZZER = 25;
+static const uint8_t RED_LED = 32;
+static const uint8_t YELLOW_LED = 33;
+static const uint8_t GREEN_LED = 16;
+static const uint8_t BLUE_LED = 17;
+static const uint8_t LDR = 36;
+static const uint8_t POT = 39;
+static const uint8_t RIGHT_PUTTON = 34;
+static const uint8_t LEFT_BUTTON = 35;
+static const uint8_t MOTOR1A = 32;
+static const uint8_t MOTOR1B = 33;
+static const uint8_t MOTOR2A = 16;
+static const uint8_t MOTOR2B = 17;
+
+
+#endif /* Pins_Arduino_h */