From be691fd2780e58e0425d444d96310da1ca048374 Mon Sep 17 00:00:00 2001
From: Mark Thompson <129641948+NotherNgineer@users.noreply.github.com>
Date: Mon, 3 Apr 2023 15:36:10 -0500
Subject: [PATCH 1/2] Fixed TPMS type 5 sensor readings

Fixed issue with temperature & pressure values for OOK-8400-Schrader TPMS sensor type 5 (temperature & pressure were swapped and using wrong conversion ratio).  Tested fix against 14 sensors of this type.
---
 firmware/common/tpms_packet.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/firmware/common/tpms_packet.cpp b/firmware/common/tpms_packet.cpp
index f81ef35aa..dc89f751b 100644
--- a/firmware/common/tpms_packet.cpp
+++ b/firmware/common/tpms_packet.cpp
@@ -100,8 +100,8 @@ Optional<Reading> Packet::reading_ook_8k4_schrader() const {
 	 * Preamble: 01*40
 	 * System ID: 01100101, ??*20 (not really sure what this data is)
 	 * ID: 32 Manchester symbols
-	 * Value: 8 Manchester symbols (temperature?)
-	 * Value: 8 Manchester symbols (pressure?)
+	 * Value: 8 Manchester symbols (pressure)
+	 * Value: 8 Manchester symbols (temperature)
 	 * Checksum: 8 Manchester symbols (uint8_t sum of bytes starting with system ID)
 	 */
 	/* NOTE: First four bits of packet are consumed in preamble detection.
@@ -123,8 +123,8 @@ Optional<Reading> Packet::reading_ook_8k4_schrader() const {
 		return Reading {
 			Reading::Type::GMC_96,
 			(uint32_t)id,
-			Pressure { static_cast<int>(value_1) * 4 / 3 },
-			Temperature { static_cast<int>(value_0) - 56 }
+			Pressure { static_cast<int>(value_0) * 8 / 3 },
+			Temperature { static_cast<int>(value_1) - 61 }
 		};
 	} else {
 		return { };

From 35db3685278c564ada3a1aa71f1c58328661f73b Mon Sep 17 00:00:00 2001
From: Mark Thompson <129641948+NotherNgineer@users.noreply.github.com>
Date: Mon, 3 Apr 2023 16:40:07 -0500
Subject: [PATCH 2/2] Update tpms_packet.cpp

---
 firmware/common/tpms_packet.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/firmware/common/tpms_packet.cpp b/firmware/common/tpms_packet.cpp
index dc89f751b..9f8df9bd2 100644
--- a/firmware/common/tpms_packet.cpp
+++ b/firmware/common/tpms_packet.cpp
@@ -123,7 +123,7 @@ Optional<Reading> Packet::reading_ook_8k4_schrader() const {
 		return Reading {
 			Reading::Type::GMC_96,
 			(uint32_t)id,
-			Pressure { static_cast<int>(value_0) * 8 / 3 },
+			Pressure { static_cast<int>(value_0) * 11 / 4 },
 			Temperature { static_cast<int>(value_1) - 61 }
 		};
 	} else {