Arduino Bluetooth Flasher

Arduino programming with Bluetooth using ESP32 makes it easy to upload code to Arduino without any problems with the serial port.

Wiring

ESP32 PIN	LOGIC LEVEL CONVERTER	ARDUINO PIN
RX	LV1 <------> HV1	TX
TX	LV2 <------> HV2	RX
3V3	LV <------> HV	5V
GND	GND <------> GND	GND
D26	LV3 <------> HV3	RST

Setup ESP32

• Flash From PC

  1. Download Flash Download Tool
  2. Connect ESP32 Board to PC
  3. ChipType select ESP32 and klik OK
  4. Browse file firmware_0x10000.bin and input address offset 0x10000. Next, select the COM port and click START.

• Flash From Android

  1. Install ESP32 Loader (Blynk Uploader)
  2. Connect ESP32 Board to phone using OTG cable
  3. Browse file firmware_0x10000.bin and klik icon upload

Programming Arduino

Default programmer baudrate 115200, if you need change to 57600 connect PIN 13 to GND. Support Bluino Loader - Arduino IDE for Android phone.

Board	Baudrate Programming	Need Logic Level
Arduino/Genuino Uno	115200	YES
Arduino/Genuino Mega w/ ATmega2560	115200	YES
Arduino Nano w/ ATmega328P	115200	YES
Arduino Nano w/ ATmega328P (old)	57600	YES
Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega328P	57600	YES
Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328P	57600	NO
Arduino Duemilanove or Diecimila w/ ATmega328P	57600	YES

Debug

Open ESP32 serial2 port set baudrate 115200.