diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3044ecb..ee282ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,17 +15,16 @@ set(CMAKE_CXX_STANDARD 17)
 
 pico_sdk_init()
 
+# libs
+add_subdirectory(PicoW_UDP)
+
 add_executable(PicoW_UDP_Tests
   src/main.c
 )
 
-target_include_directories(PicoW_UDP_Tests PRIVATE
-    ${CMAKE_CURRENT_LIST_DIR}/src # For lwipopts.h
-)
-
 target_link_libraries(PicoW_UDP_Tests
   pico_stdlib
-  pico_cyw43_arch_lwip_poll
+  PicoW_UDP
 )
 
 # Configuration du stdio
diff --git a/PicoW_UDP b/PicoW_UDP
index 0290fd6..e305fc0 160000
--- a/PicoW_UDP
+++ b/PicoW_UDP
@@ -1 +1 @@
-Subproject commit 0290fd6e40e989e11dabda8f01afe16578ae8c11
+Subproject commit e305fc0b4843068acbb7880f1dd2dc7cd8fb2640
diff --git a/README.md b/README.md
index f17acd1..95cc531 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
-# PicoWCommLib
+# PicoW_UDP_Tests
 
-Library for rapsberry pi pico to communicate over WIFI
\ No newline at end of file
+Test of the library PicoW_UDP_Lib.
\ No newline at end of file
diff --git a/src/lwipopts.h b/src/lwipopts.h
deleted file mode 100644
index 3cc083c..0000000
--- a/src/lwipopts.h
+++ /dev/null
@@ -1,92 +0,0 @@
-#ifndef _LWIPOPTS_EXAMPLE_COMMONH_H
-#define _LWIPOPTS_EXAMPLE_COMMONH_H
-
-
-// Common settings used in most of the pico_w examples
-// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html for details)
-
-// allow override in some examples
-#ifndef NO_SYS
-#define NO_SYS                      1
-#endif
-// allow override in some examples
-#ifndef LWIP_SOCKET
-#define LWIP_SOCKET                 0
-#endif
-#if PICO_CYW43_ARCH_POLL
-#define MEM_LIBC_MALLOC             1
-#else
-// MEM_LIBC_MALLOC is incompatible with non polling versions
-#define MEM_LIBC_MALLOC             0
-#endif
-#define MEM_ALIGNMENT               4
-#ifndef MEM_SIZE
-#define MEM_SIZE                    4000
-#endif
-#define MEMP_NUM_TCP_SEG            32
-#define MEMP_NUM_ARP_QUEUE          10
-#define PBUF_POOL_SIZE              24
-#define LWIP_ARP                    1
-#define LWIP_ETHERNET               1
-#define LWIP_ICMP                   1
-#define LWIP_RAW                    1
-#define TCP_WND                     (8 * TCP_MSS)
-#define TCP_MSS                     1460
-#define TCP_SND_BUF                 (8 * TCP_MSS)
-#define TCP_SND_QUEUELEN            ((4 * (TCP_SND_BUF) + (TCP_MSS - 1)) / (TCP_MSS))
-#define LWIP_NETIF_STATUS_CALLBACK  1
-#define LWIP_NETIF_LINK_CALLBACK    1
-#define LWIP_NETIF_HOSTNAME         1
-#define LWIP_NETCONN                0
-#define MEM_STATS                   0
-#define SYS_STATS                   0
-#define MEMP_STATS                  0
-#define LINK_STATS                  0
-// #define ETH_PAD_SIZE                2
-#define LWIP_CHKSUM_ALGORITHM       3
-#define LWIP_DHCP                   1
-#define LWIP_IPV4                   1
-#define LWIP_TCP                    1
-#define LWIP_UDP                    1
-#define LWIP_DNS                    1
-#define LWIP_TCP_KEEPALIVE          1
-#define LWIP_NETIF_TX_SINGLE_PBUF   1
-#define DHCP_DOES_ARP_CHECK         0
-#define LWIP_DHCP_DOES_ACD_CHECK    0
-
-#ifndef NDEBUG
-#define LWIP_DEBUG                  1
-#define LWIP_STATS                  1
-#define LWIP_STATS_DISPLAY          1
-#endif
-
-#define ETHARP_DEBUG                LWIP_DBG_OFF
-#define NETIF_DEBUG                 LWIP_DBG_OFF
-#define PBUF_DEBUG                  LWIP_DBG_OFF
-#define API_LIB_DEBUG               LWIP_DBG_OFF
-#define API_MSG_DEBUG               LWIP_DBG_OFF
-#define SOCKETS_DEBUG               LWIP_DBG_OFF
-#define ICMP_DEBUG                  LWIP_DBG_OFF
-#define INET_DEBUG                  LWIP_DBG_OFF
-#define IP_DEBUG                    LWIP_DBG_OFF
-#define IP_REASS_DEBUG              LWIP_DBG_OFF
-#define RAW_DEBUG                   LWIP_DBG_OFF
-#define MEM_DEBUG                   LWIP_DBG_OFF
-#define MEMP_DEBUG                  LWIP_DBG_OFF
-#define SYS_DEBUG                   LWIP_DBG_OFF
-#define TCP_DEBUG                   LWIP_DBG_OFF
-#define TCP_INPUT_DEBUG             LWIP_DBG_OFF
-#define TCP_OUTPUT_DEBUG            LWIP_DBG_OFF
-#define TCP_RTO_DEBUG               LWIP_DBG_OFF
-#define TCP_CWND_DEBUG              LWIP_DBG_OFF
-#define TCP_WND_DEBUG               LWIP_DBG_OFF
-#define TCP_FR_DEBUG                LWIP_DBG_OFF
-#define TCP_QLEN_DEBUG              LWIP_DBG_OFF
-#define TCP_RST_DEBUG               LWIP_DBG_OFF
-#define UDP_DEBUG                   LWIP_DBG_OFF
-#define TCPIP_DEBUG                 LWIP_DBG_OFF
-#define PPP_DEBUG                   LWIP_DBG_OFF
-#define SLIP_DEBUG                  LWIP_DBG_OFF
-#define DHCP_DEBUG                  LWIP_DBG_OFF
-
-#endif /* __LWIPOPTS_H__ */