commit 1bc75b612368c9a5775f3d6c0fd303dfe01d5a00
from: Thomas Böhler <witcher@wiredspace.de>
date: Wed Nov 23 16:31:29 2022 UTC

Various minor and unimportant changes

commit - 67f022afe299e120ddc8c913c6d7d393d2f55534
commit + 1bc75b612368c9a5775f3d6c0fd303dfe01d5a00
blob - 517246328d0094049b939cf24fe1793eb882594b
blob + 770261bf170a707ab5e159e26e1162e7b6ca73dd
--- src/main.rs
+++ src/main.rs
@@ -7,10 +7,10 @@ use btleplug::platform::Manager;
 use uuid::Uuid;
 
 const ESP_MAC_ADDR: [u8; 6] = [0x60, 0x55, 0xf9, 0xc1, 0x1e, 0x2e];
-const SERVICE_UUID: uuid::Uuid = Uuid::from_u128(0x061f8f7050293e727e62a46aa61cda68);
-const BUFFER_READY_UUID: uuid::Uuid = Uuid::from_u128(0x78844add576bb4cd3c40f1f3d536a38a);
-const DATA_BUFFER_UUID: uuid::Uuid = Uuid::from_u128(0xb57fc8740ebd1d2695ae2d31db630a54);
-const BUFFER_LEN_UUID: uuid::Uuid = Uuid::from_u128(0x3e0fb4716b176bbc63b82b70b6cf54dd);
+const SERVICE_UUID: Uuid = Uuid::from_u128(0x061f8f7050293e727e62a46aa61cda68);
+const BUFFER_READY_UUID: Uuid = Uuid::from_u128(0x78844add576bb4cd3c40f1f3d536a38a);
+const DATA_BUFFER_UUID: Uuid = Uuid::from_u128(0xb57fc8740ebd1d2695ae2d31db630a54);
+const BUFFER_LEN_UUID: Uuid = Uuid::from_u128(0x3e0fb4716b176bbc63b82b70b6cf54dd);
 const SERVICE_CHARACTERISTICS: [Uuid; 3] = [BUFFER_READY_UUID, DATA_BUFFER_UUID, BUFFER_LEN_UUID];
 
 async fn find_device(
@@ -68,7 +68,6 @@ async fn main() -> anyhow::Result<()> {
 
     let manager: Manager = Manager::new().await?;
     let adapter_list = manager.adapters().await?;
-    info!("adapters: {:?}", adapter_list);
 
     // TODO: only allow adapters that support BLE 5.0 or higher
     if adapter_list.is_empty() {
@@ -93,6 +92,7 @@ async fn main() -> anyhow::Result<()> {
         Some(s) => s,
         None => anyhow::bail!("ESP doesn't provide service with UUID {:?}", SERVICE_UUID),
     };
+    // TODO: assert DLE with length 251
 
     // check if service has all the characteristics that are needed
     // not checking if they have the correct properties...
@@ -125,19 +125,20 @@ async fn main() -> anyhow::Result<()> {
         .find(|c| c.uuid == DATA_BUFFER_UUID)
         .unwrap();
 
-    // send around (512 byte * 8) * 512 iteration / (10^3) = 2097.152 kbit
-    for _ in 0..512 {
+    info!("Sending (512 byte * 8) * 1024 iterations / (10^3) = 4194.304 kbit");
+    for _ in 0..1024 {
         let buffer: Vec<u8> = std::iter::repeat_with(rand::random)
             .take(buffer_len)
             .collect();
 
         esp.write(data_buffer_char, &buffer, WriteType::WithoutResponse)
             .await?;
-        log::info!("Sending another {} bytes", buffer.len());
     }
 
     info!("Done");
+    tokio::time::sleep(std::time::Duration::from_secs(60)).await;
     esp.disconnect().await?;
+    info!("Disconnected");
 
     Ok(())
 }