diff --git a/arduino/commander.go b/arduino/commander.go
index be04254a..cde050b5 100644
--- a/arduino/commander.go
+++ b/arduino/commander.go
@@ -22,7 +22,7 @@ import (
 )
 
 // Commander of arduino package allows to call
-// the arduino-cli commands in a programmatic way
+// the arduino-cli commands in a programmatic way.
 type Commander interface {
 	BoardList() ([]*rpc.DetectedPort, error)
 	UploadBin(fqbn, bin, port string) error
diff --git a/arduino/dir.go b/arduino/dir.go
index 923c8f07..1418af21 100644
--- a/arduino/dir.go
+++ b/arduino/dir.go
@@ -27,7 +27,7 @@ import (
 	"github.com/arduino/go-win32-utils"
 )
 
-// DataDir returns the Arduino default data directory (arduino15)
+// DataDir returns the Arduino default data directory (arduino15).
 func DataDir() (*paths.Path, error) {
 	userHomeDir, err := os.UserHomeDir()
 	if err != nil {
diff --git a/arduino/grpc/client.go b/arduino/grpc/client.go
index 58aac7fe..f8f3d115 100644
--- a/arduino/grpc/client.go
+++ b/arduino/grpc/client.go
@@ -43,7 +43,7 @@ type client struct {
 // NewClient instantiates and returns a new grpc client that allows to
 // programmatically call arduino-cli commands.
 // It exploits the grpc interface of the arduino-cli.
-// It returns: the client instance, a callback to close the client and an error
+// It returns: the client instance, a callback to close the client and an error.
 func NewClient() (arduino.Commander, func() error, error) {
 	// Establish a connection with the gRPC server, started with the command:
 	// arduino-cli daemon
diff --git a/cli/version/version.go b/cli/version/version.go
index a36ca717..7b9007fd 100644
--- a/cli/version/version.go
+++ b/cli/version/version.go
@@ -25,7 +25,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-// NewCommand created a new `version` command
+// NewCommand creates a new `version` command.
 func NewCommand() *cobra.Command {
 	return &cobra.Command{
 		Use:     "version",
diff --git a/command/dashboard/create.go b/command/dashboard/create.go
index d92c5949..f26e350c 100644
--- a/command/dashboard/create.go
+++ b/command/dashboard/create.go
@@ -32,7 +32,7 @@ type CreateParams struct {
 	Template string            // Path of the template file
 }
 
-// Create allows to create a new dashboard
+// Create allows to create a new dashboard.
 func Create(params *CreateParams) (*DashboardInfo, error) {
 	conf, err := config.Retrieve()
 	if err != nil {
diff --git a/command/device/board.go b/command/device/board.go
index f0eaf527..e616a16b 100644
--- a/command/device/board.go
+++ b/command/device/board.go
@@ -39,7 +39,7 @@ var (
 	}
 )
 
-// board contains details of a physical arduino board
+// board contains details of a physical arduino board.
 type board struct {
 	fqbn   string
 	serial string
@@ -48,7 +48,7 @@ type board struct {
 }
 
 // isCrypto checks if the board is a valid arduino board with a
-// supported crypto-chip
+// supported crypto-chip.
 func (b *board) isCrypto() bool {
 	for _, f := range cryptoFQBN {
 		if b.fqbn == f {
@@ -58,7 +58,7 @@ func (b *board) isCrypto() bool {
 	return false
 }
 
-// isCrypto checks if the board is a valid LoRa arduino board
+// isLora checks if the board is a valid LoRa arduino board.
 func (b *board) isLora() bool {
 	for _, f := range loraFQBN {
 		if b.fqbn == f {
@@ -94,8 +94,8 @@ func boardFromPorts(ports []*rpc.DetectedPort, params *CreateParams) *board {
 // - if the port parameter does not match the actual port address.
 // - if the the detected port does not contain any board.
 // It returns:
-// true -> to skip the port
-// false -> to keep the port
+// true -> to skip the port.
+// false -> to keep the port.
 func portFilter(port *rpc.DetectedPort, params *CreateParams) bool {
 	if len(port.Boards) == 0 {
 		return true
diff --git a/command/device/createlora.go b/command/device/createlora.go
index 58e34590..78d5e37e 100644
--- a/command/device/createlora.go
+++ b/command/device/createlora.go
@@ -40,7 +40,7 @@ const (
 	serialEUIBaudrate = 9600
 
 	// dev-eui is an IEEE EUI64 address, so it must have length of 8 bytes.
-	// It's retrieved as hexadecimal string, thus 16 chars are expected
+	// It's retrieved as hexadecimal string, thus 16 chars are expected.
 	deveuiLength = 16
 )
 
diff --git a/command/device/provision.go b/command/device/provision.go
index 0cba536f..fd167130 100644
--- a/command/device/provision.go
+++ b/command/device/provision.go
@@ -64,7 +64,7 @@ func downloadProvisioningFile(fqbn string) (string, error) {
 }
 
 // provision is responsible for running the provisioning
-// procedures for boards with crypto-chip
+// procedures for boards with crypto-chip.
 type provision struct {
 	arduino.Commander
 	iot.Client
@@ -73,7 +73,7 @@ type provision struct {
 	id    string
 }
 
-// run provisioning procedure for boards with crypto-chip
+// run provisioning procedure for boards with crypto-chip.
 func (p provision) run() error {
 	bin, err := downloadProvisioningFile(p.board.fqbn)
 	if err != nil {
diff --git a/command/ota/massupload.go b/command/ota/massupload.go
index 85e2d539..9410d4d9 100644
--- a/command/ota/massupload.go
+++ b/command/ota/massupload.go
@@ -43,7 +43,7 @@ type MassUploadParams struct {
 	FQBN      string
 }
 
-// Result of an ota upload on a device
+// Result of an ota upload on a device.
 type Result struct {
 	ID  string
 	Err error
diff --git a/command/tag/create.go b/command/tag/create.go
index a0970906..fe237069 100644
--- a/command/tag/create.go
+++ b/command/tag/create.go
@@ -33,7 +33,7 @@ type CreateTagsParams struct {
 }
 
 // CreateTags allows to create or overwrite tags
-// on a resource of Arduino IoT Cloud
+// on a resource of Arduino IoT Cloud.
 func CreateTags(params *CreateTagsParams) error {
 	conf, err := config.Retrieve()
 	if err != nil {
diff --git a/command/tag/tag.go b/command/tag/tag.go
index 319bb6b1..56c7d2e3 100644
--- a/command/tag/tag.go
+++ b/command/tag/tag.go
@@ -19,8 +19,8 @@ package tag
 
 import "fmt"
 
-// TagsInfo transforms tags into user-readable strings
-// An error is returned if a tag value is not a string
+// TagsInfo transforms tags into user-readable strings.
+// An error is returned if a tag value is not a string.
 func TagsInfo(tags map[string]interface{}) ([]string, error) {
 	var str []string
 	for key, value := range tags {
diff --git a/command/thing/clone.go b/command/thing/clone.go
index ffc0ce64..0a9f6600 100644
--- a/command/thing/clone.go
+++ b/command/thing/clone.go
@@ -31,7 +31,7 @@ type CloneParams struct {
 	CloneID string // ID of thing to be cloned
 }
 
-// Clone allows to create a new thing from an already existing one
+// Clone allows to create a new thing from an already existing one.
 func Clone(params *CloneParams) (*ThingInfo, error) {
 	conf, err := config.Retrieve()
 	if err != nil {
diff --git a/command/thing/create.go b/command/thing/create.go
index a9572146..f95eb1a0 100644
--- a/command/thing/create.go
+++ b/command/thing/create.go
@@ -32,7 +32,7 @@ type CreateParams struct {
 	Template string  // Path of the template file
 }
 
-// Create allows to create a new thing
+// Create allows to create a new thing.
 func Create(params *CreateParams) (*ThingInfo, error) {
 	conf, err := config.Retrieve()
 	if err != nil {
diff --git a/internal/binary/download.go b/internal/binary/download.go
index 714d092e..44cc28c1 100644
--- a/internal/binary/download.go
+++ b/internal/binary/download.go
@@ -28,7 +28,7 @@ import (
 	fwuploader "github.com/arduino/arduino-fwuploader/indexes/download"
 )
 
-// Download a binary file contained in the binary index
+// Download a binary file contained in the binary index.
 func Download(bin *IndexBin) ([]byte, error) {
 	b, err := download(bin.URL)
 	if err != nil {
diff --git a/internal/binary/index.go b/internal/binary/index.go
index ef67b795..5a08d257 100644
--- a/internal/binary/index.go
+++ b/internal/binary/index.go
@@ -30,24 +30,24 @@ import (
 )
 
 const (
-	// URL of cloud-team binary index
+	// URL of cloud-team binary index.
 	IndexGZURL  = "https://cloud-downloads.arduino.cc/binaries/index.json.gz"
 	IndexSigURL = "https://cloud-downloads.arduino.cc/binaries/index.json.sig"
 )
 
 // Index contains details about all the binaries
-// loaded in 'cloud-downloads'
+// loaded in 'cloud-downloads'.
 type Index struct {
 	Boards []IndexBoard `json:"boards"`
 }
 
-// IndexBoard describes all the binaries available for a specific board
+// IndexBoard describes all the binaries available for a specific board.
 type IndexBoard struct {
 	Fqbn      string    `json:"fqbn"`
 	Provision *IndexBin `json:"provision"`
 }
 
-// IndexBin contains the details needed to retrieve a binary file from the cloud
+// IndexBin contains the details needed to retrieve a binary file from the cloud.
 type IndexBin struct {
 	URL      string      `json:"url"`
 	Checksum string      `json:"checksum"`
@@ -95,7 +95,7 @@ func LoadIndex() (*Index, error) {
 
 // FindProvisionBin looks for the provisioning binary corresponding
 // to the passed fqbn in the index.
-// Returns nil if the binary is not found
+// Returns nil if the binary is not found.
 func (i *Index) FindProvisionBin(fqbn string) *IndexBin {
 	for _, b := range i.Boards {
 		if b.Fqbn == fqbn {
diff --git a/internal/config/config.go b/internal/config/config.go
index 00730198..1d8f212f 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -26,7 +26,7 @@ import (
 )
 
 // Config contains all the configuration parameters
-// known by arduino-cloud-cli
+// known by arduino-cloud-cli.
 type Config struct {
 	Client string `map-structure:"client"` // Client ID of the user
 	Secret string `map-structure:"secret"` // Secret ID of the user, unique for each Client ID
@@ -78,7 +78,7 @@ func searchConfigDir() (string, error) {
 	}
 
 	return "", fmt.Errorf(
-		"didn't find config file in the current directory, its parents or in %s.",
+		"didn't find config file in the current directory, its parents or in %s",
 		arduino15.String(),
 	)
 }
diff --git a/internal/config/default.go b/internal/config/default.go
index b4cf24c4..ee0698a3 100644
--- a/internal/config/default.go
+++ b/internal/config/default.go
@@ -23,7 +23,7 @@ var (
 	Filename = "arduino-cloud"
 )
 
-// SetDefaults sets the default values for configuration keys
+// SetDefaults sets the default values for configuration keys.
 func SetDefaults(settings *viper.Viper) {
 	// Client ID
 	settings.SetDefault("client", "xxxxxxxxxxxxxx")
diff --git a/internal/serial/protocol.go b/internal/serial/protocol.go
index f7b284fb..d4a95497 100644
--- a/internal/serial/protocol.go
+++ b/internal/serial/protocol.go
@@ -18,24 +18,24 @@
 package serial
 
 var (
-	// msgStart is the initial byte sequence of every packet
+	// msgStart is the initial byte sequence of every packet.
 	msgStart = [2]byte{0x55, 0xAA}
-	// msgEnd is the final byte sequence of every packet
+	// msgEnd is the final byte sequence of every packet.
 	msgEnd = [2]byte{0xAA, 0x55}
 )
 
 const (
-	// Position of payload field
+	// payloadField indicates the position of payload field.
 	payloadField = 5
-	// Position of payload length field
+	// payloadLenField indicates the position of payload length field.
 	payloadLenField = 3
-	// Length of payload length field
+	// payloadLenFieldLen indicatest the length of payload length field.
 	payloadLenFieldLen = 2
-	// Length of the signature field
+	// crcFieldLen indicates the length of the signature field.
 	crcFieldLen = 2
 )
 
-// MsgType indicates the type of the packet
+// MsgType indicates the type of the packet.
 type MsgType byte
 
 const (
diff --git a/internal/serial/serial.go b/internal/serial/serial.go
index d6c9e7d3..5d3b7dbb 100644
--- a/internal/serial/serial.go
+++ b/internal/serial/serial.go
@@ -147,7 +147,7 @@ func (s *Serial) receive() ([]byte, error) {
 	return payload, nil
 }
 
-// encode is internally used to create a valid provisioning packet
+// encode is internally used to create a valid provisioning packet.
 func encode(mType MsgType, msg []byte) []byte {
 	// Insert the preamble sequence followed by the message type
 	packet := append(msgStart[:], byte(mType))