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