add readmes and cmd-cli

controller/README.md

@@ -3,8 +3,9 @@
 Read temperature values and write them to an MQTT topic.
 
 The Raspberry Pi Pico is well supported by [embassy](https://embassy.dev), apart
-from the bluetooth stack (for [legal]() reasons). As we do not use bluetooth for
-communication we can ignore that.
+from the bluetooth stack (_2024/11/18:
+[might not be true anymore](https://github.com/embassy-rs/embassy/blob/main/examples/rp/src/bin/bluetooth.rs)_).
+As we do not use bluetooth for communication we can ignore that.
 
 ## Flashing
 
@@ -107,4 +108,3 @@ All configuration is read on startup of the microcontroller.
 ## Outlook
 
 - Pull the flash/config handling into separate library for testability
-- Merge different ways of running tasks (join and tasks)

controller/src/main.rs

@@ -13,6 +13,7 @@ use embassy_executor::Spawner;
 use embassy_net::Stack;
 use embassy_time::Timer;
 use flash::{Config, FlashError};
+use mqtt_protocol::publish::MAX_TOPIC_LENGTH;
 use static_cell::StaticCell;
 use temperature::{temperature_task, Temperature};
 use usb_serial::{init_usb, usb_task};

controller/src/wifi.rs

@@ -35,7 +35,7 @@ async fn net_task(stack: &'static Stack<cyw43::NetDriver<'static>>) -> ! {
 
 static STATE: StaticCell<State> = StaticCell::new();
 static STACK: StaticCell<Stack<cyw43::NetDriver<'static>>> = StaticCell::new();
-const STACK_RESOURCES_COUNT: usize = 2;
+const STACK_RESOURCES_COUNT: usize = 5;
 static STACK_RESOURCES: StaticCell<StackResources<STACK_RESOURCES_COUNT>> = StaticCell::new();
 
 // Initialise the wwifi chip of the RP2040 and return the control interface as well as the network