mqtt ready to be implemented

test1/.cargo/config.toml

@@ -3,6 +3,8 @@ runner = "espflash flash --monitor --chip esp32"
 
 [env]
 ESP_LOG="info"
+SSID = "nazov_wifi"
+PASSWORD = "heslo"
 
 [build]
 rustflags = [

test1/Cargo.lock

@@ -164,6 +164,47 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "defmt"
+version = "0.3.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0963443817029b2024136fc4dd07a5107eb8f977eaf18fcd1fdeb11306b64ad"
+dependencies = [
+ "defmt 1.0.1",
+]
+
+[[package]]
+name = "defmt"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "548d977b6da32fa1d1fda2876453da1e7df63ad0304c8b3dae4dbe7b96f39b78"
+dependencies = [
+ "bitflags 1.3.2",
+ "defmt-macros",
+]
+
+[[package]]
+name = "defmt-macros"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d4fc12a85bcf441cfe44344c4b72d58493178ce635338a3f3b78943aceb258e"
+dependencies = [
+ "defmt-parser",
+ "proc-macro-error2",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "defmt-parser"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10d60334b3b2e7c9d91ef8150abfb6fa4c1c39ebbcf4a81c2e346aad939fee3e"
+dependencies = [
+ "thiserror",
+]
+
 [[package]]
 name = "delegate"
 version = "0.13.4"
@@ -279,7 +320,7 @@ dependencies = [
  "embassy-time 0.5.0",
  "embedded-io-async",
  "embedded-nal-async",
- "heapless",
+ "heapless 0.8.0",
  "log",
  "managed",
  "smoltcp",
@@ -302,7 +343,7 @@ dependencies = [
  "embedded-io-async",
  "futures-sink",
  "futures-util",
- "heapless",
+ "heapless 0.8.0",
 ]
 
 [[package]]
@@ -316,7 +357,7 @@ dependencies = [
  "embedded-io-async",
  "futures-core",
  "futures-sink",
- "heapless",
+ "heapless 0.8.0",
 ]
 
 [[package]]
@@ -368,7 +409,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc55c748d16908a65b166d09ce976575fb8852cf60ccd06174092b41064d8f83"
 dependencies = [
  "embassy-executor",
- "heapless",
+ "heapless 0.8.0",
 ]
 
 [[package]]
@@ -504,7 +545,7 @@ dependencies = [
  "cfg-if",
  "esp-config",
  "esp-println",
- "heapless",
+ "heapless 0.8.0",
  "semihosting",
 ]
 
@@ -885,6 +926,16 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "heapless"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1edcd5a338e64688fbdcb7531a846cfd3476a54784dcb918a0844682bc7ada5"
+dependencies = [
+ "hash32",
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -1089,6 +1140,28 @@ dependencies = [
  "toml_edit",
 ]
 
+[[package]]
+name = "proc-macro-error-attr2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
+[[package]]
+name = "proc-macro-error2"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802"
+dependencies = [
+ "proc-macro-error-attr2",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.101"
@@ -1166,6 +1239,19 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "rust-mqtt"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f71160765f368fd9a84e0955e2ddb6d64ac9018fee1c5323354d6d08c816b40"
+dependencies = [
+ "defmt 0.3.100",
+ "embedded-io",
+ "embedded-io-async",
+ "heapless 0.8.0",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.20"
@@ -1230,7 +1316,7 @@ dependencies = [
  "bitflags 1.3.2",
  "byteorder",
  "cfg-if",
- "heapless",
+ "heapless 0.8.0",
  "log",
  "managed",
 ]
@@ -1314,11 +1400,33 @@ dependencies = [
  "esp-hal-embassy",
  "esp-println",
  "esp-wifi",
+ "heapless 0.9.1",
  "log",
+ "rust-mqtt",
  "smoltcp",
  "static_cell",
 ]
 
+[[package]]
+name = "thiserror"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "0.7.2"

test1/Cargo.toml

@@ -64,6 +64,8 @@ smoltcp = { version = "0.12.0", default-features = false, features = [
   "socket-udp",
 ] }
 static_cell = "2.1.1"
+rust-mqtt = { version = "0.3.0", default-features = false, features = ["no_std"] }
+heapless = "0.9.1"
 
 
 [profile.dev]

test1/src/bin/mqtt_docs.md

@@ -0,0 +1,13 @@
+# MQTT Implementation Notes
+
+* WiFi connection runs in a separate task with auto-reconnect functionality
+* Network stack operates in a dedicated packet processing task
+* MQTT uses TCP socket connection (MqttClient wraps this socket)
+* ClientConfig specifies: MQTT version, QoS levels, client ID
+* Standard flow: connect_to_broker() → send_message() or subscribe()
+
+## Implementation:
+1. Perform DNS lookup for broker hostname
+2. Establish TCP socket connection
+3. Create MqttClient with configuration
+4. Implement connect, publish, and subscribe logic