fix: Add delay before reading serial

README.md

@@ -23,6 +23,8 @@ SERIAL_PORT=./virtual-tty go run cmd/serial/main.go
 The serial-gateway has a `/pub` endpoint that can be used for testing. A `POST` to `/pub` will result in the http body being written to the serial port on the host. As a result the LORA gateway will broadcast the contents for any LORA device to receive.
 
 ```sh
+ssh -D 9995 weeble
+kubectl ctx weeble
 kubectl -n iot port-forward svc/serial-gateway 8080:8080 
 curl -X POST "http://localhost:8080/pub" -d "a-message" 
 ```

cmd/serial/main.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
@@ -160,6 +161,9 @@ func serialServer(port *serial.Port) {
 		var n int
 		var msg string
 
+		log.Println("Pause for buffer ZZZzzz...")
+		time.Sleep(time.Millisecond * 50)
+
 		n, err = port.Read(buf)
 		if err != nil {
 			log.Panicf("Error trying to read serial port %v\n", err)