Hi everyone, in this blog post we will be sharing the procedure for flashing a firmware to ESP-WROOM-32. ESP-WROOM-32 is a powerful WiFi-BT-BLE MCU module that targets a wide variety of applications ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.
Now let us explore, how to flash a firmware in ESP32 breakout module.
Fig: below shows the Elementz ESP32 breakout module
Programming ESP32 breakout V1.0 using Arduino Core in Windows
Step 1: Download and install latest Arduino IDE from arduino.cc
Step 2: To install arduino ESP32 support,installation instructions can be obtained from Instructions for windows
Step 3: Download and install Git from git-scm.com
Step 4: Start Git GUI and run the following steps:
- Select Clone Existing Repository
- Select source and destination
- Source Location:
- Target Directory:
- Click Clone to start cloning the repository
- Source Location:
Documents/Arduino/hardware/espressif/esp32/toolsand double-click get.exe
- When get.exe finishes, you can see the following files in the directory
Step 5: Connect ESP32 breakout module to the USB to TTL converter as shown in the figure below:
Step 6: Select the Board as Node32s and select corresponding port from Tools menu
Step 7: Use the following sketch
Step 8: Click “upload” option in the toolbar
If the code is uploaded successfully, then LED on esp-wroom-32 starts blinking
Programming ESP32 breakout V1.0 using Arduino Core in Linux
Step1: Download and install latest Arduino IDE from arduino.cc
Step 2: To install arduino ESP32 support,installation instructions can be obtained from Instructions for Debian/Ubuntu Linux
Step 3: Open Terminal and execute the following command
sudo usermod -a -G dialout $USER && \ sudo apt-get install git && \ mkdir -p ~/Arduino/hardware/espressif && \ cd ~/Arduino/hardware/espressif && \ git clone https://github.com/espressif/arduino-esp32.git esp32 && \ cd esp32/tools/ && \ python get.py
Here Git is installed,esp32 files are cloned and get.py is executed.You can see the esp32 folder inside arduino with esp32 files installed.
Step 4: Open arduino IDE
Step 5: Use the above same sketch used for windows, Select the board as Node32s and select the corresponding port
Step 6: Now your console looks like this:
Step 7: Click upload and if the code snippet is uploaded successfully, then the LED on esp-wroom- 32 starts blinking.