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MagTag Daily Weather: Add battery state display #3217

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MagTag Daily Weather: Add battery state display #3217

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MagTag Daily Weather: Add battery state display
just6979 Mar 21, 2026
4ba2551
Fix missed renaming
just6979 Mar 21, 2026
a04e74c
Fix extraneous import
just6979 Mar 21, 2026
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13 changes: 13 additions & 0 deletions MagTag/MagTag_Weather/openmeteo/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,8 @@ def update_today(data):
today_date.text = "{} {} {}, {}".format(
DAYS[t.tm_wday].upper(), MONTHS[t.tm_mon - 1].upper(), t.tm_mday, t.tm_year
)
battery_percent = 100 * (magtag.peripherals.battery - 3.5) / (4.2 - 3.5)
battery_state.text = f'B:{battery_percent:.0f}%'
# weather icon
w = data["daily"]["weather_code"][0]
today_icon[0] = next(i for i, t in enumerate(WMO_CODE_TO_ICON) if w in t)
Expand Down Expand Up @@ -231,6 +233,10 @@ def go_to_sleep(current_time_secs):
location_name.anchor_point = (0, 0)
location_name.anchored_position = (15, 25)

battery_state = label.Label(terminalio.FONT, text="B??%", color=0x777777)
battery_state.anchor_point = (0, 0)
battery_state.anchored_position = (157, 25)

today_icon = displayio.TileGrid(
icons_large_bmp,
pixel_shader=icons_small_pal,
Expand Down Expand Up @@ -264,6 +270,7 @@ def go_to_sleep(current_time_secs):

today_banner = displayio.Group()
today_banner.append(today_date)
today_banner.append(battery_state)
today_banner.append(location_name)
today_banner.append(today_icon)
today_banner.append(today_low_temp)
Expand All @@ -287,6 +294,12 @@ def go_to_sleep(current_time_secs):
# ===========
# M A I N
# ===========

battery_percent = 100 * (magtag.peripherals.battery - 3.5) / (4.2 - 3.5)
print(f"Battery: {magtag.peripherals.battery}V, ~{battery_percent:.0f}%")
if magtag.peripherals.battery < 3.5:
print("Battery: LOW, please charge!")

print("Fetching forecast...")
resp_data = get_forecast()
forecast_data = resp_data.json()
Expand Down
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