diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
deleted file mode 100644
index 2dc8c19..0000000
--- a/.github/workflows/go.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-# This workflow will build a golang project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
-
-name: Go
-
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master" ]
-
-jobs:
-
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - name: Install dependencies
-      run: |
-        cd monitor && go get .
-
-    - name: Set up Go
-      uses: actions/setup-go@v4
-      with:
-        cache-dependency-path: monitor/go.sum
-        go-version: '1.21'
-
-    - name: Build
-      run: cd monitor && go build -o ./monitor.out .
diff --git a/README.md b/README.md
index 4c621f3..0b839f8 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,8 @@
 ```shell
 git clone https://www.github.com/foglar/cobraV2.git
 cd cobraV2/serial_read
+
+go run .
 go build .
 ```
 
@@ -47,6 +49,8 @@ go build .
 ```shell
 git clone https://www.github.com/foglar/cobraV2.git
 cd cobraV2/monitor
+
+go run .
 go build .
 ```
 
@@ -57,7 +61,7 @@ go build .
 
 ### Sender and Reciever
 
-Upload sender and reciever code on the 2 arduino's
+Upload sender and reciever code on the 2 arduinos
 
 Required library for antenna: [RF24](https://nrf24.github.io/RF24)
 
@@ -183,6 +187,7 @@ $GPGAA,HHMMSS.SS,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx
 ### Sender issues
 
 - [x] data stops being transmitted from sender after some short period time
+- [ ] create a version which will send data via **IOT 433MHz LoRa LPWAN SX1278**
 
 ### Monitor app issues
 
@@ -209,3 +214,5 @@ Datasheets, documentation and sources
 - [NRF24L01+ PA/LNA - Datasheet](doc/nrf24lo1-datasheet.pdf)
 - [NRF24L01+ PA/LNA - Demo code](https://img.gme.cz/files/eshop_data/eshop_data/10/775-034/prg.775-034.1.zip)
 - [Pixel2 (go gui library) - Github repository](https://github.com/gopxl/pixel)
+- [LoraWAN Library](https://github.com/mcci-catena/arduino-lmic)
+- All other reference materials are in the *doc/* directory
diff --git a/doc/CRC_prirucka_2024.pdf b/doc/CRC_prirucka_2024.pdf
new file mode 100644
index 0000000..f415b1f
Binary files /dev/null and b/doc/CRC_prirucka_2024.pdf differ
diff --git a/doc/ds_sx1276-7-8-9_w_app_v7.pdf b/doc/ds_sx1276-7-8-9_w_app_v7.pdf
new file mode 100644
index 0000000..6d04c2c
Binary files /dev/null and b/doc/ds_sx1276-7-8-9_w_app_v7.pdf differ
diff --git a/doc/lora-device-developer-guide-orange.pdf b/doc/lora-device-developer-guide-orange.pdf
new file mode 100644
index 0000000..64f54f5
Binary files /dev/null and b/doc/lora-device-developer-guide-orange.pdf differ
diff --git a/monitor/go.mod b/monitor/go.mod
index 54c14c4..9c7b079 100644
--- a/monitor/go.mod
+++ b/monitor/go.mod
@@ -1,6 +1,8 @@
 module foglar/monitor
 
-go 1.20
+go 1.21
+
+toolchain go1.22.1
 
 require (
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
diff --git a/monitor/go.sum b/monitor/go.sum
index 732adfd..4d9c67f 100644
--- a/monitor/go.sum
+++ b/monitor/go.sum
@@ -1,4 +1,5 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/faiface/glhf v0.0.0-20211013000516-57b20770c369 h1:gv4BgP50atccdK/1tZHDyP6rMwiiutR2HPreR/OyLzI=
 github.com/faiface/glhf v0.0.0-20211013000516-57b20770c369/go.mod h1:dDdUO+G9ZnJ9sc8nIUvhLkE45k8PEKW6+A3TdWsfpV0=
 github.com/faiface/mainthread v0.0.0-20171120011319-8b78f0a41ae3 h1:baVdMKlASEHrj19iqjARrPbaRisD7EuZEVJj6ZMLl1Q=
@@ -19,7 +20,9 @@ github.com/gopxl/pixel v1.0.0/go.mod h1:kPUBG2He7/+alwmi5z0IwnpAc6pw2N7eA08cdBfo
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
 github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
 golang.org/x/image v0.0.0-20190321063152-3fc05d484e9f/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
@@ -29,3 +32,4 @@ golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/testing-sender/test.ino b/testing-sender/testing-sender.ino
similarity index 100%
rename from testing-sender/test.ino
rename to testing-sender/testing-sender.ino