From 4b75e4c651eb3f5bc5d825cedc983cf63dc83721 Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Sun, 24 Aug 2025 16:49:02 +0200
Subject: [PATCH 1/3] temp: Add datasheets

---
 Misc/Temp-Monitor/MF52D NTC thermistor.pdf | 3 +++
 Misc/Temp-Monitor/cs1237_datasheet.pdf     | 3 +++
 2 files changed, 6 insertions(+)
 create mode 100644 Misc/Temp-Monitor/MF52D NTC thermistor.pdf
 create mode 100644 Misc/Temp-Monitor/cs1237_datasheet.pdf

diff --git a/Misc/Temp-Monitor/MF52D NTC thermistor.pdf b/Misc/Temp-Monitor/MF52D NTC thermistor.pdf
new file mode 100644
index 0000000..3b6a89f
--- /dev/null
+++ b/Misc/Temp-Monitor/MF52D NTC thermistor.pdf	
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8c09541041ac7990fc31293cc5d726aa87dcb6d7d50c5540a950597c516afc35
+size 409355
diff --git a/Misc/Temp-Monitor/cs1237_datasheet.pdf b/Misc/Temp-Monitor/cs1237_datasheet.pdf
new file mode 100644
index 0000000..6cf8b43
--- /dev/null
+++ b/Misc/Temp-Monitor/cs1237_datasheet.pdf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37e56da52b76fa15737251f7b791a818ec2da334b541c602a30fda5b54f3ca51
+size 395342

From 40a2f9c5f3d30679f47d43c7f66d92f18d713a69 Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Sun, 24 Aug 2025 17:11:33 +0200
Subject: [PATCH 2/3] temp: Add a README

---
 Misc/Temp-Monitor/README.md     | 29 +++++++++++++++++++++++++++++
 Misc/Temp-Monitor/schematic.png |  3 +++
 2 files changed, 32 insertions(+)
 create mode 100644 Misc/Temp-Monitor/README.md
 create mode 100644 Misc/Temp-Monitor/schematic.png

diff --git a/Misc/Temp-Monitor/README.md b/Misc/Temp-Monitor/README.md
new file mode 100644
index 0000000..8327543
--- /dev/null
+++ b/Misc/Temp-Monitor/README.md
@@ -0,0 +1,29 @@
+Millikelvin Temperature Monitor
+-------------------------------
+Because we are fighting a lot of drift issues with the STM, we assume that
+temperature deviations have a catastrophic effect on the system.  To gain some
+insights, we built a little temperature minitor for correlating the STM drift
+to temperature fluctuations.
+
+### Hardware
+The following components were used:
+
+- A cheap `MF52D 3950K` 10k NTC thermistor
+- An ADC breakout board based on the CS1237 chip ([Breakout Board Docs](https://github.com/yasir-shahzad/CS1237-24-Bit-ADC-Module))
+- A Raspberry Pi Pico 2
+
+![Schematic of the temperature monitoring setup](./schematic.png)
+
+### Software
+On the Pico 2, a small micropython script is running.  To deploy the code, you
+need [`mpremote`](https://docs.micropython.org/en/latest/reference/mpremote.html):
+
+```bash
+mpremote cp cs1237.py :
+mpremote cp temperature_monitor.py :
+mpremote cp main.py :
+```
+
+Replug the Pico USB cable and data should be sent in over serial.
+
+To monitor, we are currently using the [`serial-monitor-rust`](https://github.com/hacknus/serial-monitor-rust) tool.
diff --git a/Misc/Temp-Monitor/schematic.png b/Misc/Temp-Monitor/schematic.png
new file mode 100644
index 0000000..3457f77
--- /dev/null
+++ b/Misc/Temp-Monitor/schematic.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6b72a7073c0bb50ec066c91ee96ac03eb74ae0256bacd59a981b5ce313c71ec4
+size 22199

From 5fa05aca2cb401327d9d7a833a4789ee271fabaa Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Sun, 24 Aug 2025 17:12:37 +0200
Subject: [PATCH 3/3] temp: Add license

---
 Misc/Temp-Monitor/README.md              | 3 +++
 Misc/Temp-Monitor/temperature_monitor.py | 1 +
 2 files changed, 4 insertions(+)

diff --git a/Misc/Temp-Monitor/README.md b/Misc/Temp-Monitor/README.md
index 8327543..16a4fd2 100644
--- a/Misc/Temp-Monitor/README.md
+++ b/Misc/Temp-Monitor/README.md
@@ -27,3 +27,6 @@ mpremote cp main.py :
 Replug the Pico USB cable and data should be sent in over serial.
 
 To monitor, we are currently using the [`serial-monitor-rust`](https://github.com/hacknus/serial-monitor-rust) tool.
+
+### License
+All code in this directory is licensed under the [`MIT`](https://opensource.org/license/MIT) license.
diff --git a/Misc/Temp-Monitor/temperature_monitor.py b/Misc/Temp-Monitor/temperature_monitor.py
index d40409c..483d138 100644
--- a/Misc/Temp-Monitor/temperature_monitor.py
+++ b/Misc/Temp-Monitor/temperature_monitor.py
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: MIT
 import math
 import time
 from cs1237 import CS1237