From c19c6445bdcf98aa3ce560e864ec39ce39e6187c Mon Sep 17 00:00:00 2001
From: Matthew Kennedy <matthewkennedy@outlook.com>
Date: Thu, 29 Oct 2020 02:53:45 -0700
Subject: [PATCH] fix gain

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

diff --git a/firmware/pump_dac.cpp b/firmware/pump_dac.cpp
index af9db90..4ec2568 100644
--- a/firmware/pump_dac.cpp
+++ b/firmware/pump_dac.cpp
@@ -20,7 +20,7 @@ void SetPumpCurrentTarget(int32_t microampere)
     // 47 ohm resistor
     // 0.147 gain
     // effective resistance of 317 ohms
-    float volts = 0.000317308f * microampere;
+    float volts = 0.000321162f * microampere;
 
     // offset by 
     volts += 1.65f;