Fri3d 2026: battery voltage (commented out)

ThomasFarstrike · ThomasFarstrike · commit 5e0ed5c1a516 · 2026-04-20T13:24:47.000+02:00
diff --git a/internal_filesystem/lib/mpos/board/fri3d_2024.py b/internal_filesystem/lib/mpos/board/fri3d_2024.py
@@ -332,8 +332,6 @@ def adc_to_voltage(adc_value):
 # Initialize 5 NeoPixel LEDs (GPIO 12)
 LightsManager.init(neopixel_pin=12, num_leds=5)
 
-print("Fri3d hardware: Audio, LEDs, and sensors initialized")
-
 # === STARTUP "WOW" EFFECT ===
 import time
 import _thread
diff --git a/internal_filesystem/lib/mpos/board/fri3d_2026.py b/internal_filesystem/lib/mpos/board/fri3d_2026.py
@@ -159,6 +159,17 @@ def install_expander_firmware(filename):
     except Exception as e:
         print("Could not check CH32 firmware version after install, many things, including LCD RESET, won't work!")
 
+'''
+# Quick and dirty patch of BatteryManager to use the CH32 battery level:
+# mpos.io_expander.analog causes keypresses
+def get_voltage(force_refresh=False, raw_adc_value=None):
+    return (0.001651 * mpos.io_expander.analog[2] + 0.08709) # copied from fri3d_2024.py
+from mpos import BatteryManager
+BatteryManager.read_raw_adc =  lambda *args: mpos.io_expander.analog[2]
+BatteryManager.has_battery = lambda *args: True
+BatteryManager.read_battery_voltage = get_voltage
+'''
+
 # quick and dirty way to make accessible later:
 mpos.io_expander = expander
 
