From c9e80434fe0528ef54676c8b6339e818470f53bf Mon Sep 17 00:00:00 2001
From: Vladan Popovic <vladanovic@gmail.com>
Date: Mon, 20 Feb 2023 17:24:35 +0100
Subject: [PATCH] wait more between tcp connect reply reads

---
 src/modem.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/modem.rs b/src/modem.rs
index c040bf3..41d95ec 100644
--- a/src/modem.rs
+++ b/src/modem.rs
@@ -280,13 +280,15 @@ impl<UART: serial::Uart, PWK: OutputPin, RST: OutputPin, PW: OutputPin> Modem<UA
 
     pub fn tcp_connect(&mut self, addr: &str, port: u16) -> Result<()> {
         let at_command = format!("AT+CIPSTART=\"TCP\",\"{}\",\"{}\"", addr, port);
-        let _ = self.send(&at_command, "CONNECT OK");
+        let mut reply_result = self.send(&at_command, "CONNECT OK");
         for _ in 0..3 {
-            if let Ok(reply) = self.command_read_response(Some("CONNECT OK".to_string())) {
+            if let Ok(reply) = reply_result {
                 println!("TCP connect replied with {}", reply);
                 break
+            } else {
+                reply_result = self.command_read_response(Some("CONNECT OK".to_string()));
             }
-            thread::sleep(Duration::from_millis(500));
+            thread::sleep(Duration::from_millis(1000));
         }
         Ok(())
     }