MaxO
v0.1


OSC operations for ESP8266 + Max7219 matrixs led with micropython.

Need an ESP8266 on a local network with internet gateway at least for install.


Obviously change /dev/cu.usbserial-1D1310 with your serial port like /dev/tty.USB0


# Hardware connections 

Connections wemos D1 mini https://docs.wemos.cc/en/latest/d1/d1_mini_lite.html

5V 					VCC
GND 				GND
D7 MOSI (GPIO13) 	DIN
D8 CS (GPIO15) 		CS
D5 SCK (GPIO14) 	CLK


# Flash Wemos D1 mini (ESP8266) 1 Mo

Download micropython firmware :

https://micropython.org/resources/firmware/esp8266-1m-20200902-v1.13.bin

esptool.py erase_flash
esptool.py --port /dev/cu.usbserial-1D1310 --baud 1000000 write_flash --flash_size=4MB -fm dio 0 PATHTO/esp8266-1m-20200902-v1.13.bin


# install ampy

pip3 install ampy

# Wifi config

edit netconf.py


# Matrixs config vertical or horizontal

in matrix9.py

screen = max7219.Max7219(8, 32, spi, Pin(15))

8 is x 
32 is y (4 8x8 max7219)

# Transfer MaxO

ampy -p /dev/cu.usbserial-1D1310 put boot.py
ampy -p /dev/cu.usbserial-1D1310 put wlan.py
ampy -p /dev/cu.usbserial-1D1310 put netconf.py
ampy -p /dev/cu.usbserial-1D1310 put main.py
ampy -p /dev/cu.usbserial-1D1310 put maxserver.py
ampy -p /dev/cu.usbserial-1D1310 put max9.py
ampy -p /dev/cu.usbserial-1D1310 put max7219.py
ampy -p /dev/cu.usbserial-1D1310 put uosc


# Onboard install library via Internet 



ampy -p /dev/cu.usbserial-1D1310 run wlan
screen /dev/cu.usbserial-1D1310 115200

type in micropython interactive :

import upip
upip.install('uasyncio')
upip.install('ffilib')

# reboot with onboard reset button


reboot