From df8ae2263de26158bd3e3e77bc6f6cf524bc9cc0 Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Sun, 24 Aug 2025 00:11:16 +0200
Subject: [PATCH] temp: First version of adc readout

---
 Misc/Temp-Monitor/firmware.py | 38 +++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Misc/Temp-Monitor/firmware.py

diff --git a/Misc/Temp-Monitor/firmware.py b/Misc/Temp-Monitor/firmware.py
new file mode 100644
index 0000000..b0dca32
--- /dev/null
+++ b/Misc/Temp-Monitor/firmware.py
@@ -0,0 +1,38 @@
+import time
+from machine import Pin
+
+clock = Pin(2)
+data = Pin(4)
+
+SLEEP_TIME = 1
+
+
+def read_adc():
+    # Wait for DRDY
+    while data.high():
+        pass
+
+    value = 0
+    for i in range(24):
+        clock.high()
+        time.sleep_us(SLEEP_TIME)
+
+        value |= data.value() << (23 - i)
+
+        clock.low()
+        time.sleep_us(SLEEP_TIME)
+
+    # Shift 3 more bits
+    for i in range(3):
+        clock.high()
+        time.sleep_us(SLEEP_TIME)
+        clock.low()
+        time.sleep_us(SLEEP_TIME)
+
+    return value
+
+
+while True:
+    value = float(read_adc()) / (2**24-1)
+    print(f"{value:f}")
+    time.sleep(0.1)