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41 lines
1.6 KiB
Markdown
41 lines
1.6 KiB
Markdown
# serialCom-esp8266
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Using micropython on a esp8266 to create a served webpage. Navigating to certain endpoints sends buffered commands over i2c interface to a IR enabled arduino.
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# Setup
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> Setup is done on MacOS 10.15 Beta (19A487m)
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### Flashing the chip with micropython
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We need to start by flashing micropython to our esp8266. Download micropython from [http://micropython.org/download#esp8266](http://micropython.org/download#esp8266).
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Next we need to install esptool from espressif. This is a python-based, platform independent, utility to communicate with the ORM bootloader in the Espressif ESP8266 & ESP32 chips. There might be other great tools for flashing these chips out there aswell. Check out their [github page](https://github.com/espressif/esptool) for updated installation instructions.
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Now we can flash our chip with the downloaded binary file. First find your esp chip:
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```
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$ ls /dev/tty.usb*
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```
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I run esp8266 tool from the source files in a virtualenv, your command might veary slightly:
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```
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$ env/bin/python3 esptool.py -p /dev/tty.usbserial-1460 write_flash -z 0x0000 ~/firmware-combined.bin
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```
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Note the *tty.usbserial-1460* device name and the path *../firmware-combined.bin* for the micropython binary.
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### Install
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Requirements:
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- ampy [https://github.com/pycampers/ampy](https://github.com/pycampers/ampy) / `pip install adafruit-ampy`
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Transfer boot script:
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```
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$ ampy -p /dev/tty.usbserial-1420 put boot.py
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```
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Again note the *tty.usbeserial-1420* device name.
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### Configure
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Temperary requirement - set PSID and password for network to connect to. Fill in the empty strings `sta_if.connect('', '')` on line 57 in boot.py.
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