diff --git a/CHANGELOG.md b/CHANGELOG.md
index a968f38..5824673 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,3 +13,16 @@ All notable changes to this project will be documented in this file.
 
 - First working version. But without pressure sensor. Physical RS485 bus untested, but did test ModBus over TTL serial.
 
+## [0.2.0] - 2024-01-04
+
+### Added
+
+- BMP280 pressure sensor via I2C
+
+### Fixed
+
+- Calibrated wind vane (analog input)
+
+### Changed
+
+- Heater of humidiy sensor only on when humidity is above 96% (was 80%). When heater is on temperature sensor also heats up, so use temperature sensor of BMP280 when heater is on.
diff --git a/README.md b/README.md
index 3f20b1c..2382ccc 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Garni RS1 Passive Radiation Shield
 
 - SparkFun SEN-15901 Weather Station (wind speed, wind direction and rain fall)
 - Silicon Labs Si7021 (humidity and temperature)
-- Bosch BMP280 (pressure and temperature)
+- Bosch BMP280 (pressure)
 
 ## Measurements
 
@@ -46,7 +46,7 @@ The measurments and order of the measurements are the same as for APRS weather r
 | 30006   | Rain last 24 hours                  | l/m2 * 100            |
 | 30007   | Rain since midnight                 | NOT IMPLEMENTED       |
 | 30008   | Humidity                            | percent * 100         |
-| 30009   | Barometric pressure                 | hPa * 100             |
+| 30009   | Barometric pressure                 | hPa * 10              |
 
 The ModBus registers are 16 bit wide. For better precision, some units are scaled by a factor of 100. This way, values with up to two decimal points can be stored as 16 bit integer values. Just divide by 100 to get the floating point values.
 
@@ -65,7 +65,7 @@ Libraries are included with the source code of this project
 
 ## License
 
-Copyright (C) 2023  M.T. Konstapel
+Copyright (C) 2023, 2024  M.T. Konstapel
 
 ### Software
 
diff --git a/hardware/ds-15901_interface/ds-15901_interface-backups/ds-15901_interface-2024-01-04_184412.zip b/hardware/ds-15901_interface/ds-15901_interface-backups/ds-15901_interface-2024-01-04_184412.zip
new file mode 100644
index 0000000..7059918
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index 0138b18..e9076dd 100644
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+++ b/hardware/ds-15901_interface/ds-15901_interface.kicad_sch
@@ -829,6 +829,69 @@
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       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "+3V3" (id 1) (at 214.376 103.5558 0))
-    (property "Footprint" "" (id 2) (at 213.995 107.95 0)
+    (property "Value" "+3V3" (id 1) (at 204.216 103.5558 0))
+    (property "Footprint" "" (id 2) (at 203.835 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 213.995 107.95 0)
+    (property "Datasheet" "" (id 3) (at 203.835 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid f88b9c3b-ac38-46ab-983d-241c8b760431))
   )
 
-  (symbol (lib_id "power:+5V") (at 194.945 107.95 0) (unit 1)
+  (symbol (lib_id "power:+5V") (at 184.785 107.95 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8635f6)
-    (property "Reference" "#PWR0111" (id 0) (at 194.945 111.76 0)
+    (property "Reference" "#PWR0111" (id 0) (at 184.785 111.76 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "+5V" (id 1) (at 195.326 103.5558 0))
-    (property "Footprint" "" (id 2) (at 194.945 107.95 0)
+    (property "Value" "+5V" (id 1) (at 185.166 103.5558 0))
+    (property "Footprint" "" (id 2) (at 184.785 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 194.945 107.95 0)
+    (property "Datasheet" "" (id 3) (at 184.785 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 8514ea21-f25f-4eea-84d9-1ea9fb3be802))
   )
 
-  (symbol (lib_id "Transistor_FET:2N7000") (at 204.47 97.79 90) (mirror x) (unit 1)
+  (symbol (lib_id "Transistor_FET:2N7000") (at 194.31 97.79 90) (mirror x) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e868e7f)
-    (property "Reference" "Q1" (id 0) (at 207.645 95.885 90))
-    (property "Value" "2N7000" (id 1) (at 204.47 89.535 90))
-    (property "Footprint" "Package_TO_SOT_THT:TO-92L_Wide" (id 2) (at 206.375 102.87 0)
+    (property "Reference" "Q1" (id 0) (at 197.485 95.885 90))
+    (property "Value" "2N7000" (id 1) (at 194.31 89.535 90))
+    (property "Footprint" "Package_TO_SOT_THT:TO-92L_Wide" (id 2) (at 196.215 102.87 0)
       (effects (font (size 1.27 1.27) italic) (justify left) hide)
     )
-    (property "Datasheet" "https://www.fairchildsemi.com/datasheets/2N/2N7000.pdf" (id 3) (at 204.47 97.79 0)
+    (property "Datasheet" "https://www.fairchildsemi.com/datasheets/2N/2N7000.pdf" (id 3) (at 194.31 97.79 0)
       (effects (font (size 1.27 1.27)) (justify left) hide)
     )
     (pin "1" (uuid cd99fc26-1d55-4c49-bbaf-60adcea10f71))
@@ -3486,71 +3655,71 @@
     (pin "3" (uuid 24ab3ff2-897c-48ba-988a-246287be4bcc))
   )
 
-  (symbol (lib_id "Device:R_Small") (at 213.995 96.52 180) (unit 1)
+  (symbol (lib_id "Device:R_Small") (at 203.835 96.52 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e868e85)
-    (property "Reference" "R22" (id 0) (at 215.4936 95.3516 0)
+    (property "Reference" "R22" (id 0) (at 205.3336 95.3516 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Value" "2k2" (id 1) (at 215.4936 97.663 0)
+    (property "Value" "2k2" (id 1) (at 205.3336 97.663 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Footprint" "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" (id 2) (at 213.995 96.52 0)
+    (property "Footprint" "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" (id 2) (at 203.835 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "~" (id 3) (at 213.995 96.52 0)
+    (property "Datasheet" "~" (id 3) (at 203.835 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 78c7aa45-7b17-41e8-8fd7-bde47adf1a92))
     (pin "2" (uuid 4c26d8ec-8fce-4258-8778-40b48ac032f7))
   )
 
-  (symbol (lib_id "Device:R_Small") (at 194.945 96.52 180) (unit 1)
+  (symbol (lib_id "Device:R_Small") (at 184.785 96.52 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e868e8b)
-    (property "Reference" "R18" (id 0) (at 196.4436 95.3516 0)
+    (property "Reference" "R18" (id 0) (at 186.2836 95.3516 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Value" "2k2" (id 1) (at 196.4436 97.663 0)
+    (property "Value" "2k2" (id 1) (at 186.2836 97.663 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Footprint" "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" (id 2) (at 194.945 96.52 0)
+    (property "Footprint" "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" (id 2) (at 184.785 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "~" (id 3) (at 194.945 96.52 0)
+    (property "Datasheet" "~" (id 3) (at 184.785 96.52 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid d1b592f4-f0c6-421d-86be-5f497475f83d))
     (pin "2" (uuid e5a56d0a-23fd-4c78-9859-80c1720e9521))
   )
 
-  (symbol (lib_id "power:+3V3") (at 213.995 91.44 0) (unit 1)
+  (symbol (lib_id "power:+3V3") (at 203.835 91.44 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e868e98)
-    (property "Reference" "#PWR0112" (id 0) (at 213.995 95.25 0)
+    (property "Reference" "#PWR0112" (id 0) (at 203.835 95.25 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "+3V3" (id 1) (at 214.376 87.0458 0))
-    (property "Footprint" "" (id 2) (at 213.995 91.44 0)
+    (property "Value" "+3V3" (id 1) (at 204.216 87.0458 0))
+    (property "Footprint" "" (id 2) (at 203.835 91.44 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 213.995 91.44 0)
+    (property "Datasheet" "" (id 3) (at 203.835 91.44 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 1077f747-170d-4e5c-ab05-196ecc6bb80f))
   )
 
-  (symbol (lib_id "power:+5V") (at 194.945 91.44 0) (unit 1)
+  (symbol (lib_id "power:+5V") (at 184.785 91.44 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e868e9f)
-    (property "Reference" "#PWR0113" (id 0) (at 194.945 95.25 0)
+    (property "Reference" "#PWR0113" (id 0) (at 184.785 95.25 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "+5V" (id 1) (at 195.326 87.0458 0))
-    (property "Footprint" "" (id 2) (at 194.945 91.44 0)
+    (property "Value" "+5V" (id 1) (at 185.166 87.0458 0))
+    (property "Footprint" "" (id 2) (at 184.785 91.44 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 194.945 91.44 0)
+    (property "Datasheet" "" (id 3) (at 184.785 91.44 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid b3bd1ca2-f800-4c4d-8357-8d4e2319033a))
@@ -3638,19 +3807,19 @@
     (pin "1" (uuid 807a8b14-2054-4038-abe4-58b074b5a72c))
   )
 
-  (symbol (lib_id "Connector:Conn_01x04_Male") (at 172.72 107.95 0) (unit 1)
+  (symbol (lib_id "Connector:Conn_01x04_Male") (at 162.56 107.95 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8d69fe)
-    (property "Reference" "J5" (id 0) (at 173.99 102.87 0)
+    (property "Reference" "J5" (id 0) (at 163.83 102.87 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Value" "I2C@5V" (id 1) (at 172.085 109.22 0)
+    (property "Value" "I2C@5V" (id 1) (at 161.925 109.22 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 172.72 107.95 0)
+    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 162.56 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "~" (id 3) (at 172.72 107.95 0)
+    (property "Datasheet" "~" (id 3) (at 162.56 107.95 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid 05e72729-9836-4c7b-a7a3-f8014caf7626))
@@ -3659,19 +3828,19 @@
     (pin "4" (uuid c4d176c0-bdd9-4dee-80fc-487b6780a5c5))
   )
 
-  (symbol (lib_id "Connector:Conn_01x04_Male") (at 231.775 100.33 0) (mirror y) (unit 1)
+  (symbol (lib_id "Connector:Conn_01x04_Male") (at 221.615 100.33 0) (mirror y) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8e4b6c)
-    (property "Reference" "J8" (id 0) (at 230.505 95.25 0)
+    (property "Reference" "J8" (id 0) (at 217.805 92.71 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Value" "I2C@3V3" (id 1) (at 232.41 101.6 0)
+    (property "Value" "I2C@3V3" (id 1) (at 217.805 94.615 0)
       (effects (font (size 1.27 1.27)) (justify right))
     )
-    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 231.775 100.33 0)
+    (property "Footprint" "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" (id 2) (at 221.615 100.33 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "~" (id 3) (at 231.775 100.33 0)
+    (property "Datasheet" "~" (id 3) (at 221.615 100.33 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid b8c49482-54df-40eb-8376-659fb79cc443))
@@ -3680,33 +3849,33 @@
     (pin "4" (uuid e9a7fac5-42e3-44e3-b35b-44287e8b8507))
   )
 
-  (symbol (lib_id "power:GND") (at 179.705 119.38 0) (unit 1)
+  (symbol (lib_id "power:GND") (at 169.545 119.38 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8e86be)
-    (property "Reference" "#PWR0124" (id 0) (at 179.705 125.73 0)
+    (property "Reference" "#PWR0124" (id 0) (at 169.545 125.73 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "GND" (id 1) (at 179.832 123.7742 0))
-    (property "Footprint" "" (id 2) (at 179.705 119.38 0)
+    (property "Value" "GND" (id 1) (at 169.672 123.7742 0))
+    (property "Footprint" "" (id 2) (at 169.545 119.38 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 179.705 119.38 0)
+    (property "Datasheet" "" (id 3) (at 169.545 119.38 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid b15a96ec-ae98-40fc-a90c-6ff84fd74e80))
   )
 
-  (symbol (lib_id "power:+5V") (at 179.705 92.075 0) (unit 1)
+  (symbol (lib_id "power:+5V") (at 169.545 92.075 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8e894f)
-    (property "Reference" "#PWR0125" (id 0) (at 179.705 95.885 0)
+    (property "Reference" "#PWR0125" (id 0) (at 169.545 95.885 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "+5V" (id 1) (at 180.086 87.6808 0))
-    (property "Footprint" "" (id 2) (at 179.705 92.075 0)
+    (property "Value" "+5V" (id 1) (at 169.926 87.6808 0))
+    (property "Footprint" "" (id 2) (at 169.545 92.075 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 179.705 92.075 0)
+    (property "Datasheet" "" (id 3) (at 169.545 92.075 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid ba52c2a8-e1f3-4a2a-8914-d07134eae8c3))
@@ -3727,17 +3896,17 @@
     (pin "2" (uuid 8f165c5a-cc57-4b1a-9012-be8434a85368))
   )
 
-  (symbol (lib_id "power:GND") (at 226.695 119.38 0) (unit 1)
+  (symbol (lib_id "power:GND") (at 216.535 119.38 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid 00000000-0000-0000-0000-00005e8f55da)
-    (property "Reference" "#PWR0103" (id 0) (at 226.695 125.73 0)
+    (property "Reference" "#PWR0103" (id 0) (at 216.535 125.73 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Value" "GND" (id 1) (at 226.822 123.7742 0))
-    (property "Footprint" "" (id 2) (at 226.695 119.38 0)
+    (property "Value" "GND" (id 1) (at 216.662 123.7742 0))
+    (property "Footprint" "" (id 2) (at 216.535 119.38 0)
       (effects (font (size 1.27 1.27)) hide)
     )
-    (property "Datasheet" "" (id 3) (at 226.695 119.38 0)
+    (property "Datasheet" "" (id 3) (at 216.535 119.38 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (pin "1" (uuid fcf45bb9-e164-492a-b5c7-e117d4c951c8))
@@ -4314,6 +4483,22 @@
     (pin "6" (uuid 915e9c63-ab87-4607-b4bf-d01fd73ef20f))
   )
 
+  (symbol (lib_id "power:+3V3") (at 245.11 88.9 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 2f2146c9-5574-465e-b957-57e79114cbfc)
+    (property "Reference" "#PWR?" (id 0) (at 245.11 92.71 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Value" "+3V3" (id 1) (at 245.11 83.82 0))
+    (property "Footprint" "" (id 2) (at 245.11 88.9 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "" (id 3) (at 245.11 88.9 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 4b95576f-667e-491a-bce0-e32fa9ae3f2a))
+  )
+
   (symbol (lib_id "Graphic:Logo_Open_Hardware_Small") (at 233.045 175.26 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 44293aa5-64c4-4440-a33c-eae5be98dd99)
@@ -4414,6 +4599,22 @@
     (pin "1" (uuid ff304030-62e2-4c9b-ba2b-e8ed2ce45b6e))
   )
 
+  (symbol (lib_id "power:GND") (at 245.11 113.03 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid aee8d1f7-f837-4983-a004-c62e4bb0cfa9)
+    (property "Reference" "#PWR?" (id 0) (at 245.11 119.38 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Value" "GND" (id 1) (at 245.11 118.11 0))
+    (property "Footprint" "" (id 2) (at 245.11 113.03 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "" (id 3) (at 245.11 113.03 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 79f29c6d-0129-40e6-b178-d30c0c98d109))
+  )
+
   (symbol (lib_id "Device:C_Small") (at 76.835 44.45 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid c13e234f-8b1a-4e76-9590-92bcde13ce73)
@@ -4433,6 +4634,31 @@
     (pin "2" (uuid 9decf648-5aa4-4758-8c56-52fd36db325b))
   )
 
+  (symbol (lib_id "Sensor_Pressure:BMP280") (at 242.57 102.87 0) (unit 1)
+    (in_bom yes) (on_board yes)
+    (uuid f42acc52-67f7-43fc-8c3e-55e1ee030e02)
+    (property "Reference" "U?" (id 0) (at 234.95 93.98 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "BMP280" (id 1) (at 232.41 109.855 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering" (id 2) (at 242.57 120.65 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP280-DS001.pdf" (id 3) (at 242.57 102.87 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid bc63026b-90bb-4f5a-aa7a-9a2eb12c53c8))
+    (pin "2" (uuid 4fafab0e-47c0-4721-948b-4bab3e9d4c43))
+    (pin "3" (uuid f0e3628f-25c7-4da9-ae27-f984bd9770b8))
+    (pin "4" (uuid c72da359-88f5-4f5f-9c73-ea9d019ff4fd))
+    (pin "5" (uuid a50cd6fb-fb8c-42a4-8353-05cd541ab36d))
+    (pin "6" (uuid 432a18b7-9bfa-40e4-9293-370defac13ff))
+    (pin "7" (uuid e48a8ae9-6d94-4f6f-9107-14d7a28a4296))
+    (pin "8" (uuid b782fe96-b1da-40d4-8535-621e8e720261))
+  )
+
   (symbol (lib_id "Device:R_Small") (at 76.835 34.925 180) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid fe38bae4-d554-42a8-97c4-4dd1f28b244a)
@@ -4526,9 +4752,15 @@
     (path "/00000000-0000-0000-0000-00005e8e894f"
       (reference "#PWR0125") (unit 1) (value "+5V") (footprint "")
     )
+    (path "/2f2146c9-5574-465e-b957-57e79114cbfc"
+      (reference "#PWR?") (unit 1) (value "+3V3") (footprint "")
+    )
     (path "/6d8637f9-708c-4e1e-b0bb-c80ab3cb3775"
       (reference "#PWR?") (unit 1) (value "GND") (footprint "")
     )
+    (path "/aee8d1f7-f837-4983-a004-c62e4bb0cfa9"
+      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+    )
     (path "/00000000-0000-0000-0000-00005eb22cb1"
       (reference "C1") (unit 1) (value "150n") (footprint "Capacitor_THT:C_Disc_D10.5mm_W5.0mm_P7.50mm")
     )
@@ -4661,5 +4893,8 @@
     (path "/00000000-0000-0000-0000-00005e98248b"
       (reference "U4") (unit 1) (value "MCP1700-3302E") (footprint "Package_TO_SOT_THT:TO-92L_Wide")
     )
+    (path "/f42acc52-67f7-43fc-8c3e-55e1ee030e02"
+      (reference "U?") (unit 1) (value "BMP280") (footprint "Package_LGA:Bosch_LGA-8_2x2.5mm_P0.65mm_ClockwisePinNumbering")
+    )
   )
 )
diff --git a/hardware/ds-15901_interface/ds-15901_interface.pdf b/hardware/ds-15901_interface/ds-15901_interface.pdf
index d6b7796..928d2e8 100644
Binary files a/hardware/ds-15901_interface/ds-15901_interface.pdf and b/hardware/ds-15901_interface/ds-15901_interface.pdf differ
diff --git a/test_software/__pycache__/epever_control.cpython-36.pyc b/test_software/__pycache__/epever_control.cpython-36.pyc
index 2952807..5fe7fbf 100644
Binary files a/test_software/__pycache__/epever_control.cpython-36.pyc and b/test_software/__pycache__/epever_control.cpython-36.pyc differ
diff --git a/test_software/epever_control.py b/test_software/epever_control.py
index 6b40055..bcf0386 100644
--- a/test_software/epever_control.py
+++ b/test_software/epever_control.py
@@ -92,4 +92,4 @@ class EpeverChargeController(minimalmodbus.Instrument):
 
     def get_pressure(self):
         """Charging mode: 0x0001 = PWM"""
-        return self.retriable_read_register(9, 0, 4)
+        return self.retriable_read_register(9, 1, 4)