From 3392cecee1fe720a38e16fb1819557c66a268053 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Wed, 13 Sep 2023 16:03:54 +0800
Subject: [PATCH] tec_p should only be negative

---
 main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index e702e32..3172089 100644
--- a/main.cpp
+++ b/main.cpp
@@ -353,7 +353,7 @@ int main(int argc, char* argv[])
         ImGui::Text("TEC current: %.3f mA", (float)tec_current*1000.0f);
         ImGui::SliderFloat("Setpoint", &freq_setpoint_local, 0.0f, 40.0f);
         ImGui::SliderFloat("TEC bias", &tec_bias_local, 0.0f, 0.5f);
-        ImGui::SliderFloat("TEC P", &tec_p_local, -1.0f, 1.0f);
+        ImGui::SliderFloat("TEC P", &tec_p_local, -1.0f, 0.0f);
         freq_setpoint = freq_setpoint_local;
         tec_bias = tec_bias_local;
         tec_p = 0.01f*tec_p_local;