From be304324a3136c970eda135d7f70270c146e15d7 Mon Sep 17 00:00:00 2001
From: su530201 <olivier.kaufmann@umons.ac.be>
Date: Thu, 19 Oct 2023 14:45:17 +0200
Subject: [PATCH] Allows for several gain ratios with DG411 in mb_2024
---
ohmpi/hardware_components/mb_2024_0_2.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/ohmpi/hardware_components/mb_2024_0_2.py b/ohmpi/hardware_components/mb_2024_0_2.py
index 776457e4..6153b53a 100644
--- a/ohmpi/hardware_components/mb_2024_0_2.py
+++ b/ohmpi/hardware_components/mb_2024_0_2.py
@@ -21,6 +21,7 @@ SPECS = {'rx': {'model': {'default': os.path.basename(__file__).rstrip('.py')},
'mcp_address': {'default': 0x27},
'ads_address': {'default': 0x49},
'voltage_min': {'default': 10.0},
+ 'dg411_gain_ratio': 1/2, # lowest resitor value over sum of resistor values
'vmn_hardware_offset': {'default': 2500.},
},
'tx': {'model': {'default': os.path.basename(__file__).rstrip('.py')},
@@ -144,7 +145,7 @@ class Rx(Rx_mb_2023):
# ADS1115 for voltage measurement (MN)
self._coef_p2 = 1.
# Define default DG411 gain
- self._dg411_gain = 1/2
+ self._dg411_gain = kwargs['dg411_gain_ratio']
# Define pins for DG411
self.pin_DG0 = self.mcp_board.get_pin(0)
self.pin_DG0.direction = Direction.OUTPUT
--
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