ESP32 micropython

ESP32 CAM Micropython Documentation

ESPTOOL

ESPTOOL Documentation

installation

pip3 install esptool

Erase flash

#For windows change the port: COM4 --> /dev/ttyUSB0  
esptool --port COM4 erase_flash

Deploy new firmware

#For Linux change the port: COM4 --> /dev/ttyUSB0  
esptool --chip esp32 --port COM4 write_flash -z 0x1000 esp32-idf3-20210202-v1.14.bin

AMPY

AMPY Documentation

install ampy

pip3 install adafruit-ampy

Options

-p, --port PORT  Name of serial port for connected board.  [required]  
-b, --baud BAUD  Baud rate for the serial connection. (default 115200)  
-d, --delay DELAY Delay in seconds before entering RAW MODE (default 0)  
--help           Show this message and exit.
--no-output Do not show the output, do not enter to REPL

Configuration

For convenience you can set an AMPY_PORT environment variable which will be used if the port parameter is not specified.

#For windows  
set AMPY_PORT=COM4  
ampy ls  
#For linux  
export AMPY_PORT=/dev/tty.SLAB_USBtoUART  
ampy ls

Similarly, you can set AMPY_BAUD and AMPY_DELAY to control your baud rate and the delay before entering RAW MODE.

• AMPY_BAUD as default is 115200
• AMPY_DELAY as default is 0

Commands

ampy ls #list content
ampy reset #perform a soft reset/reboot
ampy mkdir #create a directory on the board
ampy rmdir #forcefully remove a folder and its children on the board
ampy rm file.py #remove a file from the board
ampy run file.py #run a script
ampy get file.py #retrieve a file
ampy put file.py #put a file or folder and its content
ampy put test.py /main.py #copy the content from test.py to main.py

USE

1. Set the port set AMPY_PORT=COM4
2. Reset the board ampy --port COM4 reset
3. List the files on the board ampy ls
4. Upload your file with a specific name (for testing) or with main name for being executed as default

#for testing
ampy put file.py
#for being executed constantly
ampy put main.py

5. Execute the file ampy run file.py or ampy run main.py

Serial Connection

For linux:

screen /dev/tty.board_name 115200

To exit, press Ctrl-a then k then y or Ctrl-a then typing :quit

Pymakr

• Install nodejs.
• Install PYMAKR on VScode.
• Create a project(where three files will be created main.py, boot.py and pymakr.conf).
• Inside main.py put the code.
• To run the code in the device:
  • Connect the device and select connect device.
  • Press Sync project to device.
  • After the upload finish, press the option Hard reset the device to execute the script.
• To run the REPL, press Create terminal.
• To see the files inside the device, press Open device in file explorer.

PlatformIO

• install python
• install PlatformIO
• create a new project
• select the board DOIT ESP32 DEVKIT V1
• a folder will be created
• put your code inside src/main.cpp
• edit platformio.ini, specify the baudrate monitor_speed = 115200