From 67e906bb19dd62ce37ed76b0be64e26f3c23bcb8 Mon Sep 17 00:00:00 2001
From: Luxferre <lux@ferre>
Date: Tue, 23 Dec 2025 22:02:44 +0200
Subject: [PATCH] added cpu_f

---
 README.md      | 1 +
 deck/hwinfo.py | 9 ++++++++-
 tdeckboot.py   | 2 +-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 1db5ad9..e0315a9 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,7 @@ Exports the following functions:
 
 - `board_id()`: get the board ID (e.g. `lilygo_tdeck` for T-Deck/T-Deck Plus), or `emulated` if it's not run on a CircuitPython device
 - `battery_v()`: (T-Deck-specific) get the current battery voltage (or 0 if running in an emulated environment)
+- `cpu_f()`: CPU frequency in Hertz
 
 Also, this module exposes the `REAL_HW` variable to detect whether the code is running on a real hardware in the CircuitPython environment.
 
diff --git a/deck/hwinfo.py b/deck/hwinfo.py
index 1eec80d..87072f9 100644
--- a/deck/hwinfo.py
+++ b/deck/hwinfo.py
@@ -2,7 +2,7 @@
 
 REAL_HW = False
 try:
-  import board, analogio
+  import board, analogio, microcontroller
   vbat_analog = analogio.AnalogIn(board.BAT_ADC)
   REAL_HW = True
 except:
@@ -19,5 +19,12 @@ def board_id():
 def battery_v():
   if REAL_HW:
     return (vbat_analog.value * 3.3) / 65535 * 2
+  else:
+    return 0.0
+
+# get CPU frequency
+def cpu_f():
+  if REAL_HW:
+    return microcontroller.cpu.frequency
   else:
     return 0
diff --git a/tdeckboot.py b/tdeckboot.py
index d690894..4376ada 100644
--- a/tdeckboot.py
+++ b/tdeckboot.py
@@ -8,7 +8,7 @@ from deck.fs import du, df, sep, pwd, ls, md, cd, rd, rm, mv, cp, sync
 from deck.input import input, input_multi
 from deck.pager import print_paged, term_size
 from deck.time import *
-from deck.hwinfo import board_id, battery_v, REAL_HW
+from deck.hwinfo import board_id, battery_v, cpu_f, REAL_HW
 from deck.http import wget, http_fetch, http_set_ua
 from app.ed import edit, view
 try: