Raspberry Pi 4 のOS bullseye(11)に上げたら、やっぱり問題でましたね。
root@raspi4:~# cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
root@raspi4:~# pip3 list
Package Version
---------------- -------
Adafruit-BBIO 1.2.0
Adafruit-GPIO 1.0.4
Adafruit-PureIO 1.1.5
Adafruit-SSD1306 1.6.2
root@raspi4:~# ps axg|grep python
535 ? S 0:00 python3 /home/pi/bin/led0-G22-p3.py
536 ? S 0:00 python3 /home/pi/bin/stats2-p3.py
867 ? Ssl 0:01 /usr/bin/python3 /root/fanshim-python/examples/automatic.py --on-threshold 50 --off-threshold 45 --low-temp 45 --high-temp 50 --delay 2 --brightness 255
[bullseye に変更]
/etc/apt/sources.list をbuster を bullseye に変更
#apt update
#apt full-upgrade
再起動
root@raspi4:~# ps axg|grep python
549 ? S 0:00 python3 /home/pi/bin/led0-G22-p3.py
python3 /home/pi/bin/stats2-p3.py が居ない!!!!
起動すると以下pkg無しのエラーとなる。
Python3の ver.upで色々不足かな
# pip3 install Adafruit_GPIO
# pip3 install Adafruit_SSD1306
# pip3 install pillow
で、起動してみると
# ./stats2-p3.py
Traceback (most recent call last):
File "/home/pi/bin/./stats2-p3.py", line 41, in <module>
disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, i2c_address=0x3C)
File "/usr/local/lib/python3.9/dist-packages/Adafruit_SSD1306/SSD1306.py", line 242, in __init__
super(SSD1306_128_64, self).__init__(128, 64, rst, dc, sclk, din, cs,
File "/usr/local/lib/python3.9/dist-packages/Adafruit_SSD1306/SSD1306.py", line 85, in __init__
self._gpio = GPIO.get_platform_gpio()
File "/usr/local/lib/python3.9/dist-packages/Adafruit_GPIO/GPIO.py", line 426, in get_platform_gpio
raise RuntimeError('Could not determine platform.')
RuntimeError: Could not determine platform.
1.0.3/1.0.4 のPlatform.py だと rpi4が対象外になりますな。
rpi4は、Hardware : BCM2711 ですね。
def pi_version():
"""Detect the version of the Raspberry Pi. Returns either 1, 2 or
None depending on if it's a Raspberry Pi 1 (model A, B, A+, B+),
Raspberry Pi 2 (model B+), or not a Raspberry Pi.
"""
# Check /proc/cpuinfo for the Hardware field value.
# 2708 is pi 1
# 2709 is pi 2
# 2835 is pi 3 on 4.9.x kernel
# Anything else is not a pi.
with open('/proc/cpuinfo', 'r') as infile:
cpuinfo = infile.read()
# Match a line like 'Hardware : BCM2709'
match = re.search('^Hardware\s+:\s+(\w+)$', cpuinfo,
flags=re.MULTILINE | re.IGNORECASE)
if not match:
# Couldn't find the hardware, assume it isn't a pi.
return None
if match.group(1) == 'BCM2708':
# Pi 1
return 1
elif match.group(1) == 'BCM2709':
# Pi 2
return 2
elif match.group(1) == 'BCM2835':
# Pi 3 / Pi on 4.9.x kernel
return 3
else:
# Something else, not a pi.
return
OS updateする前のBuster(10)でもコードは同じだったみたいですがね。
まぁ。
circuitpython に変えましょう。。。。
#pip3 install adafruit-circuitpython-ssd1306
依存pkgも入れる。(省略)
# pip3 list
Package Version
---------------------------------------- ---------
Adafruit-Blinka 8.9.0
adafruit-circuitpython-busdevice 5.2.3
adafruit-circuitpython-displayio-ssd1306 1.5.11
adafruit-circuitpython-framebuf 1.4.14
adafruit-circuitpython-requests 1.12.11
adafruit-circuitpython-ssd1306 2.12.12
adafruit-circuitpython-typing 1.8.3
とりあえず、動きました。
[sample acript]
#!/usr/bin/env python3
import time
import subprocess
from board import SCL, SDA
import busio
from PIL import Image, ImageDraw, ImageFont
import adafruit_ssd1306
i2c = busio.I2C(SCL, SDA)
disp = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c)
disp.fill(0)
disp.show()
width = disp.width
height = disp.height
image = Image.new("1", (width, height))
draw = ImageDraw.Draw(image)
draw.rectangle((0, 0, width, height), outline=0, fill=0)
padding = -2
top = padding
bottom = height - padding
x = 0
font = ImageFont.load_default()
while True:
draw.rectangle((0, 0, width, height), outline=0, fill=0)
cmd = "hostname -I | cut -d' ' -f1"
IP = subprocess.check_output(cmd, shell=True).decode("utf-8")
cmd = 'cut -f 1 -d " " /proc/loadavg'
CPU = subprocess.check_output(cmd, shell=True).decode("utf-8")
cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%s MB %.2f%%\", $3,$2,$3*100/$2 }'"
MemUsage = subprocess.check_output(cmd, shell=True).decode("utf-8")
cmd = 'df -h | awk \'$NF=="/"{printf "Disk: %d/%d GB %s", $3,$2,$5}\''
Disk = subprocess.check_output(cmd, shell=True).decode("utf-8")
cmd = "uptime -p"
Uptime = subprocess.check_output(cmd, shell = True )
cmd = "vcgencmd measure_temp"
CPU_TEMP = subprocess.check_output(cmd, shell = True )
cmd = " iwconfig wlan0|head -1 |cut -f 2 -d \':\'"
ESSID = subprocess.check_output(cmd, shell = True )
cmd = "cpufreq-info -f -m"
CPU_FREQ = subprocess.check_output(cmd, shell = True )
draw.text((x, top + 0), "IP: " + IP, font=font, fill=255)
draw.text((x, top + 8), "CPU load: " + CPU, font=font, fill=255)
draw.text((x, top + 16), MemUsage, font=font, fill=255)
draw.text((x, top + 25), Disk, font=font, fill=255)
draw.text((x, top+34), str(Uptime.decode('utf-8')), font=font, fill=255)
draw.text((x, top+43), "CPU " + str(CPU_TEMP.decode('utf-8')), font=font, fill=255)
draw.text((x, top+52), "CPU frq=" + str(CPU_FREQ.decode('utf-8')), font=font, fill=255)
# Display image.
disp.image(image)
disp.show()
time.sleep(0.1)
