diff --git a/sphinx/source/Ohmpi_V2_00/V2_00_step_01.rst b/sphinx/source/Ohmpi_V2_00/V2_00_step_01.rst
index 51db436b12ff9740083e543f8be4a2ed566be331..1a77460d9e007dcaaf01a2e5a422c48c0967ef8e 100644
--- a/sphinx/source/Ohmpi_V2_00/V2_00_step_01.rst
+++ b/sphinx/source/Ohmpi_V2_00/V2_00_step_01.rst
@@ -1,4 +1,4 @@
-**STEP n°1** : Raspberry Pi  configuration
+**STEP n°1** : Raspberry Pi  configuration 
 *******************************************
 
 
@@ -24,7 +24,7 @@ For this step, the installation instructions are well described on the Raspberry
 
 1. Watch the vidéo "how to set up your raspberry Pi" (https://www.youtube.com/watch?v=wjWZhV1v3Pk)
 
-2. The authors recommend installing the latest stable and complete version of Raspbian by using NOOBS (a simple-to-use operating system installer).
+2. The authors recommend installing the latest stable and complete version of Raspberry Pi OS (Previously called Raspbian) by using Raspberry Pi Imager.
 
 3. or you can visit this website : (https://projects.raspberrypi.org/en/projects/raspberry-pi-setting-up)  
 
@@ -41,7 +41,7 @@ For this step, the installation instructions are well described on the Raspberry
 
 
 .. warning::
-	 Once the OS has been installed,  **1-wire, spi and GPIO remote option** must be deactivated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.
+	 Once the OS has been installed,  **1-wire, spi and GPIO remote option** must be deactivated and **I2C option** must be activated via the Raspbian GUI settings menu. Failure to carry out this task may cause damage to the relay shield cards during measurements.
 
 3. When the relays are connected to the GPIO, make sure that all the GPIOs are in the low position when the raspberry starts up. If not, the relays will activate unexpectedly. 
 To ensure that the GPIOs are in Low position, you will need to modify the /boot/config.txt file.
@@ -104,8 +104,9 @@ Activate it using the following command:
 Install packages within the virtual environment. Installing the following package should be sufficient to meet dependencies:
 
 .. code-block:: python
-	 
-	 pip install RPi.GPIO adafruit-blinka numpy adafruit-circuitpython-ads1x15 pandas
+     
+     export CFLAGS=-fcommon
+	 sudo pip install RPi.GPIO adafruit-blinka numpy pandas adafruit-circuitpython-ads1x15 adafruit-circuitpython-tca9548a adafruit-circuitpython-mcp230xx gpiozero
 
 Check that requirements are met using 
 
diff --git a/sphinx/source/Ohmpi_V2_00/V2_00_step_02.rst b/sphinx/source/Ohmpi_V2_00/V2_00_step_02.rst
index 63caad89aa3c0842f9f7846f3f92878576f08345..0f33174bce9a1577fa8fccbf537129c6547049d8 100644
--- a/sphinx/source/Ohmpi_V2_00/V2_00_step_02.rst
+++ b/sphinx/source/Ohmpi_V2_00/V2_00_step_02.rst
@@ -237,7 +237,7 @@ which allows to realize precise current measurement around a shunt resistor. The
    +---------+------------------------------------------------------------+
    |         |   .. image:: step_n_2/a/20_mes_board.jpg                   |
    |20       +------------------------------------------------------------+
-   |         | Fixing MCP23008 component                                  | 
+   |         | Fixing MCP23008 component (Dot mark on the top left corner)| 
    |         |                                                            |                                                                       
    +---------+------------------------------------------------------------+
    
@@ -247,8 +247,8 @@ which allows to realize precise current measurement around a shunt resistor. The
    +---------+------------------------------------------------------------+
    |         |   .. image:: step_n_2/a/21_mes_board.jpg                   |
    |21       +------------------------------------------------------------+
-   |         |Mounting optical relay, AQY211EH                            | 
-   |         |                                                            |                                                                       
+   |         |Mounting optical relay, AQY211EH (Dot mark in the top left  | 
+   |         |corners)                                                    |                                                                       
    +---------+------------------------------------------------------------+
    
 .. table::
@@ -277,7 +277,7 @@ which allows to realize precise current measurement around a shunt resistor. The
    +---------+------------------------------------------------------------+
    |         |   .. image:: step_n_2/a/24_mes_board.jpg                   |
    |24       +------------------------------------------------------------+
-   |         | Fixing the INA282                                          | 
+   |         | Fixing the INA282 (Dot mark in the top right corner)       | 
    |         |                                                            |                                                                       
    +---------+------------------------------------------------------------+
   
diff --git a/sphinx/source/Ohmpi_V2_00/step_n_2/a/Mesure_board_list_2_xx.csv b/sphinx/source/Ohmpi_V2_00/step_n_2/a/Mesure_board_list_2_xx.csv
index 2b5581dc9f83de0e48e99095433d58809d17b234..8ad4d8eb57ec364b938d3a28e2777b51c4a5fef1 100644
--- a/sphinx/source/Ohmpi_V2_00/step_n_2/a/Mesure_board_list_2_xx.csv
+++ b/sphinx/source/Ohmpi_V2_00/step_n_2/a/Mesure_board_list_2_xx.csv
@@ -1,25 +1,25 @@
-Component,Number,Cost per unit € ,Total cost €,Manufacturer,Manufacturer s reference,Web reference
-Raspberry Pi 4 Model B,1,58.75,58.75,Raspberry,Raspberry Pi 4 Model B,https://www.mouser.fr/ProductDetail/Seeed-Studio/102110421?qs=7MVldsJ5UaxeN3LYyh3sqw%3D%3D
-LM158N AMP-o,4,14.5,58,Texas Instruments,LM358AN/NOPB,https://www.mouser.fr/ProductDetail/Texas-Instruments/LM158J?qs=X1J7HmVL2ZH8vpEfMl8%2FFQ%3D%3D
-Printed circuit board ,1,12,12,Asler,-,-
-ADS1115,2,11.9,23.8,Adafruit,1085,https://www.mouser.fr/ProductDetail/Adafruit/1085?qs=%2Fha2pyFaduhE%2FOGzuTWIQ9Iz5VjaqFOYugqAlGxpEcKiGrQvF4hn%252Bg%3D%3D
-Capacitor 100nF 50Vdc 10% Ceramic,4,0.2,0.8,KEMET, C320C104K1,https://www.mouser.fr/ProductDetail/KEMET/C320C104K1R5TA7303?qs=c4UyoTs%2FLq1th4mcyOeTmA%3D%3D
-Resistor 1 Kohm 0.5W +- 0.1%,2,1.3,2.6,TE Connectivity,H81K0BYA,https://www.mouser.fr/ProductDetail/TE-Connectivity-Holsworthy/H81K0BYA?qs=%2Fha2pyFaduhUylh7Az%2FmjFH2XjOUms6wZtUX4sOM%252BII%3D
-Resistor 1.5 Kohms +- 0.1%,2,1.3,2.6,TE Connectivity,H81K5BYA,https://www.mouser.fr/ProductDetail/TE-Connectivity-Holsworthy/H81K5BYA?qs=%2Fha2pyFadugy9tWham3rU9HmIJOhyWhBIN95kNm%252BX%2FM%3D
-Resistor 1.5 Kohms +- 5%,2,1.3,2.6,Vishay,CCF071K50GKE36,https://www.mouser.fr/ProductDetail/Vishay-Dale/CCF071K50GKE36?qs=QKEOZdL6EQpA6LZRLQFVOw%3D%3D
-Resistor 10 Mohms +-5%,2,0.762,1.524,VISHAY,CMF651M0000FKEK143,https://www.mouser.fr/ProductDetail/Vishay-Dale/CMF651M0000FKEK143?qs=CiayqK2gdcKzIA2LEVaLkg%3D%3D
-2 ohm shunt resistor+-  1%,1,2.42,2.42,Ohmite,41F2R0E,https://www.mouser.fr/ProductDetail/Ohmite/41F2R0E?qs=IM6ToxQzGOAuEDprb19mHA%3D%3D
-Dual screw terminal (5.08-mm pitch),5,0.648,3.24,CUI Devices,TB009-508-02BE,https://www.mouser.fr/ProductDetail/CUI-Devices/TB009-508-02BE?qs=vLWxofP3U2wCFk5uCkWTkA%3D%3D
-DC/DC converter 12 to 24V,2,15.58,31.16,TracoPower,TRN 3-1215,https://www.mouser.fr/ProductDetail/TRACO-Power/TRN-3-1215?qs=YCa%2FAAYMW02gqUicGQj0tA%3D%3D
-DIP Dual In Line Socket 2*4,3,0.72,2.16,Mill-Max,110-43-308-41-001000,https://www.mouser.fr/ProductDetail/Mill-Max/110-43-308-41-001000?qs=IGgAdOvCTsTu%2FqaUr8NArg%3D%3D&mgh=1&vip=1&gclid=EAIaIQobChMIn_TAxbCx8wIVQ5nVCh2QaQFpEAYYCCABEgJk1_D_BwE
-AQY211EH,4,3.84,15.36,Panasonic Industrial Devices,AQY211EH,https://www.mouser.fr/ProductDetail/Panasonic-Industrial-Devices/AQY211EH?qs=wKtUvITRialGIU8hcM7DvQ%3D%3D
-DIP Dual In Line Socket 2*2,4,0.449,1.796,Preci-dip,110-83-304-41-001101,https://www.mouser.fr/ProductDetail/Preci-dip/110-83-304-41-001101?qs=%2Fha2pyFadujQKqx4wAuiG%2FMGNdxMCNv%2F33Nj0gBxRocuLUcYnpyONg%3D%3D
-SSQ-103-03-G-D,1,2.06,2.06,Samtec,SSQ-103-03-G-D,https://www.mouser.fr/ProductDetail/Samtec/SSQ-103-03-G-D?qs=rU5fayqh%252BE2Z%252BZTchcPoHQ%3D%3D
-MCP23008,1,1.72,1.72,Adafruit,593,https://www.mouser.fr/ProductDetail/Adafruit/593?qs=sGAEpiMZZMsKEdP9slC0YYV4kPdpMD1Hts4SLctIVmw%3D
-Header sets 1x10,2,2.12,4.24,Samtec,SSW-110-02-G-S,https://www.mouser.fr/ProductDetail/Samtec/SSW-110-02-G-S?qs=rU5fayqh%252BE0w1ORXZiBQpw%3D%3D
-SMT Breakout PCB for SOIC-8,1,2.5,2.5,Adafruit,1212,https://www.mouser.fr/ProductDetail/Adafruit/1212?qs=GURawfaeGuCAqqfvnVtyeg%3D%3D&mgh=1&vip=1&gclid=EAIaIQobChMIt8zJzr6x8wIVGdnVCh2vBwVsEAQYAyABEgJqG_D_BwE
-INA282AID,1,4.11,4.11,Texas Instruments,INA282AID,https://www.mouser.fr/ProductDetail/Texas-Instruments/INA282AID?qs=Ze4%2FuFuz19ILFayZXOCfrA%3D%3D
-THD 15-1211N,1,39.72,39.72,TracoPower,THD 15-1211N,https://www.mouser.fr/ProductDetail/TRACO-Power/THD-15-1211N?qs=%2Fha2pyFadugpyEG4IDvm%2FMSR%252B7aN%2F0T3rUIs9PCAqJlT4%252BnRpUOOeQ%3D%3D
-DIP Dual In Line Socket 2*20,1,8.53,8.53,Samtec,SSQ-120-23-G-D,https://www.mouser.fr/ProductDetail/Samtec/SSQ-120-23-G-D?qs=rU5fayqh%252BE1BMVd%252BDZONqg%3D%3D
-Pin strip no ejector ,1,0.35,0.35,BLK electronic,10120550,https://www.conrad.com/p/bkl-electronic-10120550-pin-strip-no-ejector-contact-spacing-254-mm-total-number-of-pins-6-no-of-rows-2-1-pcs-741435?searchTerm=741435&searchType=suggest&searchSuggest=product
-Male Female spacer 2.5M HEXAGONALE,	4,	0.87,	3.48,	HARWIN,	R25-3002002,	https://www.mouser.fr/ProductDetail/Harwin/R25-3002002?qs=W0yvOO0ixfENUv0hsdC4%2FQ%3D%3D
+"Component","Number","Cost per unit € ","Total cost €","Manufacturer","Manufacturer s reference","Web reference"
+"Raspberry Pi 4 Model B",1,"58,75","58,75","Raspberry","Raspberry Pi 4 Model B","https://www.mouser.fr/ProductDetail/Seeed-Studio/102110421?qs=7MVldsJ5UaxeN3LYyh3sqw%3D%3D"
+"LM158N AMP-o",2,"14,5",58,"Texas Instruments","LM358AN/NOPB","https://www.mouser.fr/ProductDetail/Texas-Instruments/LM158J?qs=X1J7HmVL2ZH8vpEfMl8%2FFQ%3D%3D"
+"Printed circuit board ",1,12,12,"Asler","-","-"
+"ADS1115",2,"11,9","23,8","Adafruit",1085,"https://www.mouser.fr/ProductDetail/Adafruit/1085?qs=%2Fha2pyFaduhE%2FOGzuTWIQ9Iz5VjaqFOYugqAlGxpEcKiGrQvF4hn%252Bg%3D%3D"
+"Capacitor 100nF 50Vdc 10% Ceramic",3,"0,2","0,8","KEMET"," C320C104K1","https://www.mouser.fr/ProductDetail/KEMET/C320C104K1R5TA7303?qs=c4UyoTs%2FLq1th4mcyOeTmA%3D%3D"
+"Resistor 1 Kohm 0.5W +- 0.1%",2,"1,3","2,6","TE Connectivity","H81K0BYA","https://www.mouser.fr/ProductDetail/TE-Connectivity-Holsworthy/H81K0BYA?qs=%2Fha2pyFaduhUylh7Az%2FmjFH2XjOUms6wZtUX4sOM%252BII%3D"
+"Resistor 1.5 Kohms +- 0.1%",2,"1,3","2,6","TE Connectivity","H81K5BYA","https://www.mouser.fr/ProductDetail/TE-Connectivity-Holsworthy/H81K5BYA?qs=%2Fha2pyFadugy9tWham3rU9HmIJOhyWhBIN95kNm%252BX%2FM%3D"
+"Resistor 1.5 Kohms +- 5%",2,"1,3","2,6","Vishay","CCF071K50GKE36","https://www.mouser.fr/ProductDetail/Vishay-Dale/CCF071K50GKE36?qs=QKEOZdL6EQpA6LZRLQFVOw%3D%3D"
+"Resistor 10 Mohms +-5%",2,"0,762","1,524","VISHAY","CMF651M0000FKEK143","https://www.mouser.fr/ProductDetail/Vishay-Dale/CMF651M0000FKEK143?qs=CiayqK2gdcKzIA2LEVaLkg%3D%3D"
+"2 ohm shunt resistor+-  1%",1,"2,42","2,42","Ohmite","41F2R0E","https://www.mouser.fr/ProductDetail/Ohmite/41F2R0E?qs=IM6ToxQzGOAuEDprb19mHA%3D%3D"
+"Dual screw terminal (5.08-mm pitch)",5,"0,648","3,24","CUI Devices","TB009-508-02BE","https://www.mouser.fr/ProductDetail/CUI-Devices/TB009-508-02BE?qs=vLWxofP3U2wCFk5uCkWTkA%3D%3D"
+"DC/DC converter 12 to 24V",1,"15,58","31,16","TracoPower","TRN 3-1215","https://www.mouser.fr/ProductDetail/TRACO-Power/TRN-3-1215?qs=YCa%2FAAYMW02gqUicGQj0tA%3D%3D"
+"DIP Dual In Line Socket 2*4",3,"0,72","2,16","Mill-Max","110-43-308-41-001000","https://www.mouser.fr/ProductDetail/Mill-Max/110-43-308-41-001000?qs=IGgAdOvCTsTu%2FqaUr8NArg%3D%3D&mgh=1&vip=1&gclid=EAIaIQobChMIn_TAxbCx8wIVQ5nVCh2QaQFpEAYYCCABEgJk1_D_BwE"
+"AQY211EH",4,"3,84","15,36","Panasonic Industrial Devices","AQY211EH","https://www.mouser.fr/ProductDetail/Panasonic-Industrial-Devices/AQY211EH?qs=wKtUvITRialGIU8hcM7DvQ%3D%3D"
+"DIP Dual In Line Socket 2*2",4,"0,449","1,796","Preci-dip","110-83-304-41-001101","https://www.mouser.fr/ProductDetail/Preci-dip/110-83-304-41-001101?qs=%2Fha2pyFadujQKqx4wAuiG%2FMGNdxMCNv%2F33Nj0gBxRocuLUcYnpyONg%3D%3D"
+"SSQ-103-03-G-D",1,"2,06","2,06","Samtec","SSQ-103-03-G-D","https://www.mouser.fr/ProductDetail/Samtec/SSQ-103-03-G-D?qs=rU5fayqh%252BE2Z%252BZTchcPoHQ%3D%3D"
+"MCP23008",1,"1,72","1,72","Adafruit",593,"https://www.mouser.fr/ProductDetail/Adafruit/593?qs=sGAEpiMZZMsKEdP9slC0YYV4kPdpMD1Hts4SLctIVmw%3D"
+"Header sets 1x10",2,"2,12","4,24","Samtec","SSW-110-02-G-S","https://www.mouser.fr/ProductDetail/Samtec/SSW-110-02-G-S?qs=rU5fayqh%252BE0w1ORXZiBQpw%3D%3D"
+"SMT Breakout PCB for SOIC-8",1,"2,5","2,5","Adafruit",1212,"https://www.mouser.fr/ProductDetail/Adafruit/1212?qs=GURawfaeGuCAqqfvnVtyeg%3D%3D&mgh=1&vip=1&gclid=EAIaIQobChMIt8zJzr6x8wIVGdnVCh2vBwVsEAQYAyABEgJqG_D_BwE"
+"INA282AID",1,"4,11","4,11","Texas Instruments","INA282AID","https://www.mouser.fr/ProductDetail/Texas-Instruments/INA282AID?qs=Ze4%2FuFuz19ILFayZXOCfrA%3D%3D"
+"THD 15-1211N",1,"39,72","39,72","TracoPower","THD 15-1211N","https://www.mouser.fr/ProductDetail/TRACO-Power/THD-15-1211N?qs=%2Fha2pyFadugpyEG4IDvm%2FMSR%252B7aN%2F0T3rUIs9PCAqJlT4%252BnRpUOOeQ%3D%3D"
+"DIP Dual In Line Socket 2*20",1,"8,53","8,53","Samtec","SSQ-120-23-G-D","https://www.mouser.fr/ProductDetail/Samtec/SSQ-120-23-G-D?qs=rU5fayqh%252BE1BMVd%252BDZONqg%3D%3D"
+"Pin strip no ejector ",1,"0,35","0,35","BLK electronic",10120550,"https://www.conrad.com/p/bkl-electronic-10120550-pin-strip-no-ejector-contact-spacing-254-mm-total-number-of-pins-6-no-of-rows-2-1-pcs-741435?searchTerm=741435&searchType=suggest&searchSuggest=product"
+"Male Female spacer 2.5M HEXAGONALE",4,"0,87","3,48","HARWIN","R25-3002002","https://www.mouser.fr/ProductDetail/Harwin/R25-3002002?qs=W0yvOO0ixfENUv0hsdC4%2FQ%3D%3D"