first commit; screen.py works. actually in test on my machine

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) <year> <owner> 
+Copyright (c) 2023 Claudio Maradonna
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 

odroid_hc4_oled/screen.py

@@ -0,0 +1,150 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (c) 2023 Claudio Maradonna
+
+# PYTHON_ARGCOMPLETE_OK
+
+from luma.core.interface.serial import i2c
+from luma.core.render import canvas
+from luma.oled.device import ssd1306, ssd1325, ssd1331, sh1106
+from PIL import ImageFont, ImageDraw, Image
+
+from time import sleep
+import time
+
+import re
+import os
+from shutil import which
+
+from pprint import pprint
+
+serial = i2c(port=0, address=0x3C)
+device = ssd1306(serial, rotate=2)
+
+s_width = 128
+s_height = 64
+
+def zpool_parse_data(data):
+    parts = re.split(r'(?:\n|^)\s*(\w*):\s*', data.strip(), re.MULTILINE)[1:]
+    parsed = dict(zip(parts[::2], parts[1::2]))
+    return {
+        **parsed,
+        'config': zpool_parse_config(parsed.get('config', ''))
+    }
+
+def zpool_parse_config(data):
+    lines = [v.strip().split() for v in data.splitlines() if v.strip()]
+    if lines:
+        return [
+            dict(zip(lines[0], v))
+            for v in lines[1:]
+        ]
+    return []
+
+def upsc_parse_data(data):
+    lines = data.strip().split("\n")
+    result = {}
+    for line in lines:
+        key, value = line.split(": ")
+        result[key] = value
+    return result
+
+def zpool_print_status():
+    zpool_status = os.popen('zpool status')
+    zpool_output = zpool_status.read()
+
+    zpool_status_data = zpool_parse_data(zpool_output)
+
+    zpool_list_size = os.popen('zpool list -o name,size,free')
+    zpool_list_output = zpool_list_size.read()
+    zpool_list_size_data = zpool_parse_config(zpool_list_output)
+
+    with canvas(device) as draw:
+        draw.text((0,0), "ZFS ->", fill=1)
+
+        pool_name = zpool_status_data["pool"]
+        pool_status = "ON" if zpool_status_data["state"] == "ONLINE" else "OFF"
+        final_pool_name = pool_name + ": " + pool_status
+
+        pool_name_width = draw.textlength(final_pool_name)
+        draw.text((s_width - pool_name_width, 0), final_pool_name, fill=1)
+
+        starting_height = 0
+        for drive in zpool_status_data["config"]:
+            if drive["NAME"] == pool_name:
+                for drive in zpool_list_size_data:
+                    if drive["NAME"] == pool_name:
+                        starting_height += 9
+
+                        final_string = drive["FREE"] + "/" + drive["SIZE"]
+                        fs_width = draw.textlength(final_string)
+                        draw.text((s_width - fs_width,starting_height), final_string, fill=1)
+                continue
+
+            starting_height += 9
+
+            draw.text((0,starting_height), drive["NAME"], fill=1)
+            drive_state_width = draw.textlength(drive["STATE"])
+            draw.text((s_width - drive_state_width,starting_height), drive["STATE"], fill=1)
+
+        draw.text((0, s_height - 10), zpool_status_data["errors"], fill=1)
+
+def ups_print_status():
+    ups_name_finder = os.popen('upsc -l 127.0.0.1')
+    ups_name_finder_output = ups_name_finder.read().split("\n")
+
+    ups_name = ups_name_finder_output[0]
+
+    upsc_status = os.popen('upsc ' + ups_name + '@127.0.0.1:3493')
+    upsc_output = upsc_status.read()
+
+    upsc_status_data = upsc_parse_data(upsc_output)
+
+    with canvas(device) as draw:
+        draw.text((0,0), "UPS ->", fill=1)
+
+        ups_name_width = draw.textlength(ups_name)
+        draw.text((s_width - ups_name_width, 0), ups_name, fill=1)
+
+        battery_charge = upsc_status_data["battery.charge"]
+
+        used_width = draw.textlength("[]%")
+        bar_width = (128 - used_width)
+        real_width = (int(battery_charge) * bar_width) / 100
+
+        draw.text((0,9), "[", fill=1)
+        draw.rectangle((5,13, real_width, 17), fill=1)
+        draw.text((bar_width, 9), "]%", fill=1)
+
+        draw.text((0, 20), upsc_status_data["device.model"], fill=1)
+        draw.text((0, 28), upsc_status_data["outlet.power"] + "W", fill=1)
+        draw.text((0, 36), upsc_status_data["output.voltage"] + "V", fill=1)
+
+def main():
+    if which('zpool') is None:
+        print("Cannot find `zpool` executable.")
+
+        exit(1)
+
+    if which('upsc') is None:
+        print("Cannot find `upsc` executable.")
+
+        exit(1)
+
+    start_count = 0
+    while True:
+        device.clear()
+
+        if (start_count % 2) == 0:
+            zpool_print_status()
+        else:
+            ups_print_status()
+
+        start_count += 1
+        time.sleep(5)
+
+if __name__ == "__main__":
+    try:
+        main()
+    except KeyboardInterrupt:
+        pass

setup.py

@@ -0,0 +1,22 @@
+from setuptools import setup
+
+setup(
+        name = 'odroid-hc4-oled',
+        version = '0.1',
+        description = 'ODROID LCD panel script',
+        author = 'Claudio Maradonna',
+        author_email = 'claudio@unitoo.pw',
+        license = 'BSD2',
+        install_requires = [
+            'luma.core >= 1.17.1',
+            'luma.oled >= 3.6.0',
+            'luma.lcd >= 2.5.0',
+            ],
+        packages = [
+            'odroid_hc4_oled'
+            ],
+        entry_points = {
+            'console_scripts' : [
+                'odroid_hc4_oled = odroid_hc4_oled.screen:main']
+            },
+        zip_safe = False)