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ssd1306_stats.py
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ssd1306_stats.py
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# Copyright (c) 2017 Adafruit Industries
# Author: Tony DiCola & James DeVito
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
# Copyright (c) 2024 kelson8 - Kelsoncraft
# Original link
# https://github.com/adafruit/Adafruit_CircuitPython_SSD1306/blob/main/examples/ssd1306_stats.py
import time
import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
import subprocess
# New
import psutil
#
# This outputs the current system stats to a SSD1306 OLED display connected to the Raspberry Pi
# Tested on Raspberry Pi 3, this should work on the Raspberry Pi 4 and 5 also.
# SDA - GPIO3
# SCL - GPIO5
# Raspberry Pi pin configuration:
RST = None # on the PiOLED this pin isnt used
# Note the following are only used with SPI:
DC = 23
SPI_PORT = 0
SPI_DEVICE = 0
# Beaglebone Black pin configuration:
# RST = 'P9_12'
# Note the following are only used with SPI:
# DC = 'P9_15'
# SPI_PORT = 1
# SPI_DEVICE = 0
# 128x32 display with hardware I2C:
#disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST)
# 128x64 display with hardware I2C:
disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST)
# Note you can change the I2C address by passing an i2c_address parameter like:
# disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, i2c_address=0x3C)
# Alternatively you can specify an explicit I2C bus number, for example
# with the 128x32 display you would use:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, i2c_bus=2)
# 128x32 display with hardware SPI:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))
# 128x64 display with hardware SPI:
# disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))
# Alternatively you can specify a software SPI implementation by providing
# digital GPIO pin numbers for all the required display pins. For example
# on a Raspberry Pi with the 128x32 display you might use:
# disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, sclk=18, din=25, cs=22)
# Initialize library.
disp.begin()
# Clear display.
disp.clear()
disp.display()
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
width = disp.width
height = disp.height
image = Image.new('1', (width, height))
# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# Draw a black filled box to clear the image.
draw.rectangle((0,0,width,height), outline=0, fill=0)
# Draw some shapes.
# First define some constants to allow easy resizing of shapes.
padding = -2
top = padding
bottom = height-padding
# Move left to right keeping track of the current x position for drawing shapes.
x = 0
# Load default font.
font = ImageFont.load_default()
# Alternatively load a TTF font. Make sure the .ttf font file is in the same directory as the python script!
# Some other nice fonts to try: http://www.dafont.com/bitmap.php
# font = ImageFont.truetype('Minecraftia.ttf', 8)
# https://raspberrypi.stackexchange.com/questions/111337/temperature-measured-using-psutil-and-the-cpu-temperature-monitor-are-differ
def get_cpu_temp():
temp_file = open("/sys/class/thermal/thermal_zone0/temp")
cpu_temp = temp_file.read()
temp_file.close()
return round(float(cpu_temp) / 1000, 2)
def get_cpu_usage():
return psutil.cpu_percent()
while True:
cpu_temp = get_cpu_temp()
cpu_usage = get_cpu_usage()
# Draw a black filled box to clear the image.
draw.rectangle((0,0,width,height), outline=0, fill=0)
# # Fix for the bytes showing up in the string:
# https://stackoverflow.com/questions/15374211/why-does-popen-communicate-return-bhi-n-instead-of-hi
cmd = "hostname -I | cut -d\' \' -f1"
# Strip the new line from the first command for the OLED
IP = subprocess.check_output(cmd, shell = True, universal_newlines=True ).strip()
cmd = "top -bn1 | grep load | awk '{printf \"CPU Load: %.2f\", $(NF-2)}'"
CPU = subprocess.check_output(cmd, shell = True, universal_newlines=True )
cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%sMB %.2f%%\", $3,$2,$3*100/$2 }'"
MemUsage = subprocess.check_output(cmd, shell = True, universal_newlines=True )
cmd = "df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'"
Disk = subprocess.check_output(cmd, shell = True, universal_newlines=True )
# New
cmd = "ifstat -i eth0 1 1 | tail -n1"
NetUsage = subprocess.check_output(cmd, shell = True, universal_newlines = True)
#
# Shell scripts for system monitoring from here : https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
# Output all data, some from psutil and some from the temperature file.
draw.text((x, top), "IP: " + str(IP), font=font, fill=255)
# draw.text((x, top+8), str(CPU), font=font, fill=255)
# draw.text((x, top+8), str(CPU) + " " + str(cpu_temp) + "C", font=font, fill=255)
# Show the CPU Usage and temperature
draw.text((x, top+8), "CPU: " + str(cpu_usage) + "% " + str(cpu_temp) + "C", font=font, fill=255)
draw.text((x, top+16), str(MemUsage), font=font, fill=255)
draw.text((x, top+25), str(Disk), font=font, fill=255)
# Show the bandwidth in KB/s.
# TODO Convert this into mbps for what I'm used to in networking
draw.text((x, top+36), "Bandwidth in KB/s", font=font, fill=255)
draw.text((x, top+46), "Download Upload", font=font, fill=255)
draw.text((x, top+56), str(NetUsage), font=font, fill=255)
# Display image.
disp.image(image)
disp.display()
time.sleep(.1)