.gitignore

@@ -1,8 +1,5 @@
 # Cargo
 target/
 
-# Firmware blobs
-cyw43-firmware/
-
 # VSCode
 .vscode

Cargo.toml

@@ -9,7 +9,7 @@ edition = "2021"
 
 [dependencies]
 # Embassy
-embassy-rp = { version = "0.4.0", features = [
+embassy-rp = { version = "0.3.1", features = [
     "rp235xa",
     "binary-info",
     "critical-section-impl",
@@ -24,19 +24,12 @@ embassy-executor = { version = "0.7.0", features = [
 embassy-time = "0.4.0"
 embassy-embedded-hal = "0.3.0"
 embassy-futures = "0.1.1"
-embassy-sync = "0.6.2" # TODO: Update when embassy-embedded-hal on crates.io is tracking 0.7.0
+embassy-sync = "0.6.2"
-trouble-host = { version = "0.1.0", default-features = false, features = [
-    "peripheral",
-    "gatt",
-    "derive",
-] }
 
 # System
 cortex-m-rt = "0.7.5"
 cortex-m = "0.7.7"
 critical-section = "1.2.0"
-cyw43 = { version = "0.3.0", features = ["bluetooth"] }
-cyw43-pio = "0.4.0"
 rtt-target = "0.6.1"
 
 # embedded-graphics
@@ -51,16 +44,9 @@ display-interface-spi = "0.5.0"
 # Extra
 static_cell = "2.1.0"
 heapless = "0.8.0"
-circular-buffer = { version = "1.1.0", default-features = false }
+circular-buffer = { version = "1.0.0", default-features = false }
 fixed = "1.29.0"
 
-[build-dependencies]
-reqwest = { version = "0.12.20", features = ["blocking"] }
-
-[features]
-# Skips downloading the Wi-Fi & Bluetooth chipset firmware, assumes that it is in `./cyw43-firmware`
-skip-cyw43-firmware = []
-
 [profile.dev]
 opt-level = "s"
 

build.rs

@@ -6,9 +6,6 @@ fn main() {
     let out = PathBuf::from(std::env::var_os("OUT_DIR").unwrap());
     println!("cargo:rustc-link-search={}", out.display());
 
-    #[cfg(not(feature = "skip-cyw43-firmware"))]
-    download_cyw43_firmware();
-
     // ARM build
 
     let memory_x = include_bytes!("memory.x");
@@ -25,41 +22,3 @@ fn main() {
 
     println!("cargo:rerun-if-changed=build.rs");
 }
-
-/// Downloads to firmware for the Wi-Fi / Bluetooth chipset on the RPi Pico 2 W
-#[cfg(not(feature = "skip-cyw43-firmware"))]
-fn download_cyw43_firmware() {
-    let download_folder = "cyw43-firmware";
-    let url_base = "https://raw.githubusercontent.com/embassy-rs/embassy/refs/tags/cyw43-v0.3.0/cyw43-firmware";
-    let file_names = [
-        "43439A0.bin",
-        "43439A0_btfw.bin",
-        "43439A0_clm.bin",
-        "LICENSE-permissive-binary-license-1.0.txt",
-        "README.md",
-    ];
-
-    println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo:rerun-if-changed={}", download_folder);
-    std::fs::create_dir_all(download_folder).expect("failed to create firmware directory");
-
-    // download each file into the directory "cyw43-firmware"
-    for file in file_names {
-        let url = format!("{}/{}", url_base, file);
-        // only fetch if it doesn't exist
-        if std::path::Path::new(download_folder).join(file).exists() {
-            continue;
-        }
-        match reqwest::blocking::get(&url) {
-            Ok(response) => {
-                let content = response.bytes().expect("failed to read file content");
-                let file_path = PathBuf::from(download_folder).join(file);
-                std::fs::write(file_path, &content).expect("failed to write file");
-            }
-            Err(err) => panic!(
-                "failed to download the cyw43 firmware from {}: {}, required for BLE support",
-                url, err
-            ),
-        }
-    }
-}