Statement: As a beginner, I record the learning content in the form of notes. If there is a mistake, everyone is welcome to correct and criticize, thank you!
The development environment of this machine is MacOS Python3.6
The development steps under Windows may be slightly different
Here I chose
esp8266, which are more common and more playable.
The picture above is the esp8266 development board and schematic diagram I used
Make sure your development board has a micro usb interface or has been converted to usb by your own means to connect to your computer.
The first thing to do is to check the serial-to-USB chip model on the development board to install the corresponding driver.
The chip of this section is CH340
You should can download the driver
Install after downloading
Type in the terminal under MacOS
View all files starting with
tty. in the
The results are as follows:
/dev/tty.Bluetooth-Incoming-Port /dev/tty.MALS /dev/tty.SOC /dev/tty.usbserial-1460 /dev/tty.wchusbserial1460
/dev/tty.wchusbserial1460 is the development board we connected
The number may change with the plug, it is recommended to check it by yourself
The device appears in the form of a com port under Windows, please refer to materials on internet.
There are many choices of development tools, MuEditer, Thonny, and even Pycharm can install plug-ins to achieve MicroPython development.
This time, considering the usage habits of multiple systems and common tools. We first use a more primitive terminal to use the command line to develop.
I choose the terminal application that comes with Macos for development, and Windows can choose Putty.
After choosing the development tools, you need to install Rshell
Rshell This is a simple shell that runs on the host and uses MicroPython's original REPL to send python fragments to the pyboard to obtain file system information, and copy files to or from MicroPython's file system.
Use pip to install, you need a python environment on this machine, you can use
pip --version to check whether there is pip locally
pip install rshell
In the linux environment, there may be problems with serial port permissions. For details, please refer to the readme document in github
At this point we have completed all the development environment deployments, wait for you to say that the development board has not written MicroPython firmware? Then let's start below.
Deploy MicroPython firmware to the development board
4.1 Download firmware to local
esp8266 MicroPython official firmware download address: here
Let's make it simple
Enter the path where the firmware was downloaded
Enter the following in the terminal
pip install esptool
esptool.py --port /dev/tty.wchusbserial1460 erase_flash
The effect is as follows:
esptool.py v3.0 Serial port /dev/tty.wchusbserial1460 Connecting.... Detecting chip type... ESP8266 Chip is ESP8266EX Features: WiFi Crystal is 26MHz MAC: 8c:aa:b5:59:30:90 Uploading stub... Running stub... Stub running... Erasing flash (this may take a while)... Chip erase completed successfully in 3.3s Hard resetting via RTS pin...
/dev/tty.wchusbserial1460is the name of your device, you need to replace it yourself
esptool.py --port /dev/tty.wchusbserial1460 460800 write_flash --flash_size=detect 0 esp8266-20170108-v1.8.7.bin
/dev/tty.wchusbserial1460is the name of your device, you need to replace it yourself,
esp8266-20170108-v1.8.7.binis the name of the firmware you want to flash, and you can use the Tab key to complete it in the terminal
The effect is as follows
esptool.py v3.0 Serial port /dev/tty.wchusbserial1460 Connecting.... Detecting chip type... ESP8266 Chip is ESP8266EX Features: WiFi Crystal is 26MHz MAC: 8c:aa:b5:59:30:90 Uploading stub... Running stub... Stub running... Changing baud rate to 460800 Changed. Configuring flash size... Auto-detected Flash size: 4MB Flash params set to 0x0240 Compressed 632632 bytes to 415634... Wrote 632632 bytes (415634 compressed) at 0x00000000 in 10.0 seconds (effective 505.2 kbit/s)... Hash of data verified. Leaving... Hard resetting via RTS pin...
Still terminal command
rshell -p /dev/tty.wchusbserial1460
dev/tty.wchusbserial1460is the name of your device, you need to replace it yourself
Using buffer-size of 32 Connecting to /dev/tty.wchusbserial1460 (buffer-size 32)... Trying to connect to REPL connected Retrieving sysname ... esp8266 Testing if ubinascii.unhexlify exists ... Y Retrieving root directories ... /boot.py/ Setting time ... Jun 05, 2021 13:18:25 Evaluating board_name ... pyboard Retrieving time epoch ... Jan 01, 2000 Welcome to rshell. Use Control-D (or the exit command) to exit rshell.
Then you can enter
A terminal similar to the Python interactive mode appears, you can enter after
Display after carriage return
At this point, your esp8266 has been successfully flashed into MicroPython.