first sim pass

.cargo/config.toml

@@ -1,17 +1,2 @@
-[build]
-target = "xtensa-esp32-none-elf"
-
-[target.xtensa-esp32-none-elf]
-runner = "espflash flash --monitor"
-rustflags = [
-    "-C",
-    "link-arg=-Wl,-Tlinkall.x",
-    "-C",
-    "link-arg=-nostartfiles",
-]
-
-[unstable]
-build-std = ["core", "alloc", "compiler_builtins"]
-
 [env]
 DEFMT_LOG = "debug"

Cargo.lock

@@ -49,6 +49,56 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c583acf993cf4245c4acb0a2cc2ab1f9cc097de73411bb6d3647ff6af2b1013d"
 
+[[package]]
+name = "anstream"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "824a212faf96e9acacdbd09febd34438f8f711fb84e09a8916013cd7815ca28d"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "940b3a0ca603d1eade50a4846a2afffd5ef57a9feac2c0e2ec2e14f9ead76000"
+
+[[package]]
+name = "anstyle-parse"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52ce7f38b242319f7cabaa6813055467063ecdc9d355bbb4ce0c68908cd8130e"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "arrayvec"
 version = "0.7.6"
@@ -215,6 +265,12 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "bytes"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e748733b7cbc798e1434b6ac524f0c1ff2ab456fe201501e6497c8417a4fc33"
+
 [[package]]
 name = "cc"
 version = "1.2.62"
@@ -242,6 +298,46 @@ dependencies = [
  "pure-rust-locales",
 ]
 
+[[package]]
+name = "clap"
+version = "4.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ddb117e43bbf7dacf0a4190fef4d345b9bad68dfc649cb349e7d17d28428e51"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "714a53001bf66416adb0e2ef5ac857140e7dc3a0c48fb28b2f10762fc4b5069f"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2ce8604710f6733aa641a2b3731eaa1e8b3d9973d5e3565da11800813f997a9"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
+[[package]]
+name = "clap_lex"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8d4a3bb8b1e0c1050499d1815f5ab16d04f0959b233085fb31653fbfc9d98f9"
+
 [[package]]
 name = "codespan-reporting"
 version = "0.11.1"
@@ -252,6 +348,12 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"
+
 [[package]]
 name = "const-default"
 version = "1.0.0"
@@ -324,6 +426,31 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
 
+[[package]]
+name = "crossterm"
+version = "0.28.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
+dependencies = [
+ "bitflags 2.11.1",
+ "crossterm_winapi",
+ "mio",
+ "parking_lot",
+ "rustix",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "crunchy"
 version = "0.2.4"
@@ -1047,6 +1174,16 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
+[[package]]
+name = "errno"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
+dependencies = [
+ "libc",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "esp-alloc"
 version = "0.10.0"
@@ -1680,6 +1817,12 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
+
 [[package]]
 name = "itertools"
 version = "0.14.0"
@@ -1778,6 +1921,12 @@ version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b23ac50abb8261cb38c6e2a7192d3302e0836dac1628f6a93b82b4fad185897"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.4.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d26c52dbd32dccf2d10cac7725f8eae5296885fb5703b261f7d0a0739ec807ab"
+
 [[package]]
 name = "litrs"
 version = "1.0.0"
@@ -1833,6 +1982,18 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
+[[package]]
+name = "mio"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50b7e5b27aa02a74bac8c3f23f448f8d87ff11f92d3aac1a6ed369ee08cc56c1"
+dependencies = [
+ "libc",
+ "log",
+ "wasi",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "nb"
 version = "0.1.3"
@@ -1860,7 +2021,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -1910,6 +2071,12 @@ version = "1.21.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
 
+[[package]]
+name = "once_cell_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
+
 [[package]]
 name = "owned_str"
 version = "0.1.2"
@@ -2337,6 +2504,19 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "rustix"
+version = "0.38.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fdb5bc1ae2baa591800df16c9ca78619bf65c0488b41b96ccec5d11220d8c154"
+dependencies = [
+ "bitflags 2.11.1",
+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.22"
@@ -2510,6 +2690,47 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d881a16cf4426aa584979d30bd82cb33429027e42122b169753d6ef1085ed6e2"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-mio"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b75a19a7a740b25bc7944bdee6172368f988763b744e3d4dfe753f6b4ece40cc"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4db69cba1110affc0e9f7bcd48bbf87b3f4fc7c61fc9155afd4c469eb3d6c1b"
+dependencies = [
+ "errno",
+ "libc",
+]
+
+[[package]]
+name = "simulator"
+version = "0.1.0"
+dependencies = [
+ "clap",
+ "crossterm",
+ "device-state",
+ "tokio",
+]
+
 [[package]]
 name = "siphasher"
 version = "1.0.3"
@@ -2554,6 +2775,16 @@ dependencies = [
  "managed",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
+dependencies = [
+ "libc",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "somni-expr"
 version = "0.2.0"
@@ -2674,7 +2905,7 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8c27177b12a6399ffc08b98f76f7c9a1f4fe9fc967c784c5a071fa8d93cf7e1"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2715,6 +2946,32 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.52.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fc7f01b389ac15039e4dc9531aa973a135d7a4135281b12d7c1bc79fd57fffe"
+dependencies = [
+ "bytes",
+ "libc",
+ "mio",
+ "pin-project-lite",
+ "socket2",
+ "tokio-macros",
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "385a6cb71ab9ab790c5fe8d67f1645e6c450a7ce006a33de03daa956cf70a496"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "1.1.1+spec-1.1.0"
@@ -2933,6 +3190,12 @@ dependencies = [
  "usbd-hid-descriptors",
 ]
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
 [[package]]
 name = "valuable"
 version = "0.1.1"
@@ -2976,15 +3239,43 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
 [[package]]
 name = "winapi-util"
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys",
+ "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows-link"
 version = "0.2.1"
@@ -3000,6 +3291,15 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.61.2"
@@ -3009,6 +3309,70 @@ dependencies = [
  "windows-link",
 ]
 
+[[package]]
+name = "windows-targets"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
 [[package]]
 name = "winnow"
 version = "1.0.2"

Cargo.toml

@@ -1,8 +1,11 @@
+cargo-features = ["per-package-target"]
+
 [workspace]
 members = [
     "device-state",
     "esp32",
     "pico",
+    "simulator",
 ]
 resolver = "2"
 

esp32/.cargo/config.toml

@@ -0,0 +1,17 @@
+[build]
+target = "xtensa-esp32-none-elf"
+
+[target.xtensa-esp32-none-elf]
+runner = "espflash flash --monitor"
+rustflags = [
+    "-C",
+    "link-arg=-Wl,-Tlinkall.x",
+    "-C",
+    "link-arg=-nostartfiles",
+]
+
+[unstable]
+build-std = ["core", "alloc", "compiler_builtins"]
+
+[env]
+DEFMT_LOG = "debug"

esp32/Cargo.toml

@@ -1,7 +1,9 @@
+cargo-features = ["per-package-target"]
 [package]
 name = "esp32"
 version = "0.1.0"
 edition = "2024"
+default-target = "xtensa-esp32-none-elf"
 
 [dependencies]
 [dependencies.device-state]

esp32/src/main.rs

@@ -3,6 +3,7 @@
 
 extern crate alloc;
 
+use device_state::DeviceState;
 use embassy_executor::Spawner;
 use embassy_futures::select::{Either, select};
 use embassy_net::tcp::{TcpReader, TcpWriter};
@@ -17,7 +18,6 @@ use esp_hal::{
     timer::timg::TimerGroup,
 };
 use esp_println::println;
-use device_state::{DeviceState, ViewState};
 
 mod buffer;
 mod input;
@@ -26,8 +26,6 @@ mod screen;
 
 pub use input::ANGLE;
 
-use crate::screen::overwrite_lcd;
-
 const WIFI_NETWORK: &str = "flamme";
 const WIFI_PASSWORD: &str = "12345678";
 const TARGET_IP: &str = "84.238.32.253";
@@ -135,18 +133,8 @@ pub async fn main_loop() {
         let mut state = STATE.lock().await;
         state.tick();
         let lines = state.render_lines();
-        let view = state.view_state();
         drop(state);
 
-        match view {
-            ViewState::Loading => continue,
-            ViewState::Results => {
-                overwrite_lcd("Results", "").await;
-                continue;
-            }
-            ViewState::Question => {}
-        }
-
         let Some((title_line, second_line)) = lines else {
             continue;
         };

simulator/Cargo.toml

@@ -0,0 +1,12 @@
+cargo-features = ["per-package-target"]
+[package]
+name = "simulator"
+version = "0.1.0"
+edition = "2024"
+default-target = "x86_64-unknown-linux-gnu"
+
+[dependencies]
+clap = { version = "4.5.45", features = ["derive"] }
+crossterm = "0.28.1"
+device-state = { path = "../device-state" }
+tokio = { version = "1.47.0", features = ["macros", "rt-multi-thread", "net", "sync", "time", "io-util"] }

simulator/src/main.rs

@@ -0,0 +1,192 @@
+use std::io::{self, Write as _};
+use std::net::SocketAddr;
+use std::sync::{Arc, Mutex};
+use std::thread;
+
+use clap::Parser;
+use crossterm::event::{Event, KeyCode, KeyEventKind};
+use crossterm::terminal::{disable_raw_mode, enable_raw_mode};
+use crossterm::event;
+use device_state::{DeviceState, WriteType, apply_wheel_delta};
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio::net::TcpStream;
+use tokio::sync::mpsc;
+use tokio::time::{Duration, interval};
+
+const DEVICE_ID: &str = "esp32-1";
+const DEFAULT_HOST: &str = "84.238.32.253";
+const DEFAULT_PORT: u16 = 7070;
+const WHEEL_PRECISION: i32 = 32;
+const WHEEL_STEP: i32 = 1;
+
+#[derive(Parser, Debug)]
+#[command(author, version, about)]
+struct Args {
+    #[arg(long, default_value = DEFAULT_HOST)]
+    host: String,
+    #[arg(long, default_value_t = DEFAULT_PORT)]
+    port: u16,
+}
+
+enum InputEvent {
+    Button(u8),
+    WheelDelta(i32),
+    Quit,
+}
+
+#[tokio::main]
+async fn main() -> io::Result<()> {
+    let args = Args::parse();
+    let addr: SocketAddr = format!("{}:{}", args.host, args.port).parse().unwrap();
+
+    let state = Arc::new(Mutex::new(DeviceState::new()));
+    let (input_tx, mut input_rx) = mpsc::channel::<InputEvent>(64);
+
+    spawn_input_thread(input_tx.clone());
+    tokio::spawn(ui_task(state.clone()));
+
+    let mut buf = [0u8; 1024];
+
+    loop {
+        let stream = match TcpStream::connect(addr).await {
+            Ok(stream) => stream,
+            Err(err) => {
+                eprintln!("connect error: {err}");
+                tokio::time::sleep(Duration::from_secs(1)).await;
+                continue;
+            }
+        };
+        let (mut read, mut write) = stream.into_split();
+
+        let device_id = device_state::serialize_write(&WriteType::DeviceId(DEVICE_ID)).unwrap();
+        if write.write_all(device_id.as_bytes()).await.is_err() {
+            tokio::time::sleep(Duration::from_secs(1)).await;
+            continue;
+        }
+
+        loop {
+            tokio::select! {
+                maybe_event = input_rx.recv() => {
+                    match maybe_event {
+                        Some(InputEvent::Quit) | None => {
+                            let _ = disable_raw_mode();
+                            return Ok(());
+                        }
+                        Some(InputEvent::Button(id)) => {
+                            let value = state.lock().unwrap().response_value(id);
+                            let data = WriteType::QuizResponse(value);
+                            let buffer = device_state::serialize_write(&data).unwrap();
+                            if write.write_all(buffer.as_bytes()).await.is_err() {
+                                break;
+                            }
+                        }
+                        Some(InputEvent::WheelDelta(diff)) => {
+                            let mut state = state.lock().unwrap();
+                            let wheel = state.wheel();
+                            if wheel.max != wheel.min {
+                                let mut value = wheel.value;
+                                let mut accumulated = wheel.accumulated;
+                                apply_wheel_delta(
+                                    &mut value,
+                                    wheel.min,
+                                    wheel.max,
+                                    &mut accumulated,
+                                    diff,
+                                    WHEEL_PRECISION,
+                                );
+                                let wheel = state.wheel_mut();
+                                wheel.value = value;
+                                wheel.accumulated = accumulated;
+                            }
+                        }
+                    }
+                }
+                read_res = read.read(&mut buf) => {
+                    let len = match read_res {
+                        Ok(0) => break,
+                        Ok(len) => len,
+                        Err(_) => break,
+                    };
+                    let Ok(text) = core::str::from_utf8(&buf[..len]) else {
+                        continue;
+                    };
+                    if let Some(last) = text.lines().last() {
+                        let Ok(data) = device_state::parse_proxy_output(last) else {
+                            continue;
+                        };
+                        let mut state = state.lock().unwrap();
+                        state.apply_proxy_output(data);
+                    }
+                }
+            }
+        }
+
+        tokio::time::sleep(Duration::from_millis(500)).await;
+    }
+}
+
+fn spawn_input_thread(tx: mpsc::Sender<InputEvent>) {
+    let _ = thread::Builder::new()
+        .name("sim-input".to_string())
+        .spawn(move || input_thread(tx));
+}
+
+fn input_thread(tx: mpsc::Sender<InputEvent>) {
+    let _ = enable_raw_mode();
+    let mut stdout = io::stdout();
+    let _ = crossterm::execute!(stdout, crossterm::cursor::MoveTo(0, 0));
+
+    loop {
+        if let Ok(Event::Key(key)) = event::read() {
+            if key.kind == KeyEventKind::Release {
+                continue;
+            }
+            let event = match key.code {
+                KeyCode::Char('1') => Some(InputEvent::Button(1)),
+                KeyCode::Char('2') => Some(InputEvent::Button(2)),
+                KeyCode::Char('3') => Some(InputEvent::Button(3)),
+                KeyCode::Char('4') => Some(InputEvent::Button(4)),
+                KeyCode::Left => Some(InputEvent::WheelDelta(-WHEEL_STEP)),
+                KeyCode::Right => Some(InputEvent::WheelDelta(WHEEL_STEP)),
+                KeyCode::Char('a') => Some(InputEvent::WheelDelta(-WHEEL_STEP)),
+                KeyCode::Char('d') => Some(InputEvent::WheelDelta(WHEEL_STEP)),
+                KeyCode::Char('q') => Some(InputEvent::Quit),
+                _ => None,
+            };
+
+            if let Some(event) = event {
+                let quit = matches!(event, InputEvent::Quit);
+                if tx.blocking_send(event).is_err() {
+                    break;
+                }
+                if quit {
+                    break;
+                }
+            }
+        }
+    }
+
+    let _ = disable_raw_mode();
+}
+
+async fn ui_task(state: Arc<Mutex<DeviceState>>) {
+    let mut ticker = interval(Duration::from_millis(50));
+    loop {
+        ticker.tick().await;
+        let (line1, line2) = {
+            let mut state = state.lock().unwrap();
+            state.tick();
+            match state.render_lines() {
+                Some((line1, line2)) => (line1, line2),
+                None => continue,
+            }
+        };
+
+        let mut stdout = io::stdout();
+        let _ = crossterm::execute!(stdout, crossterm::cursor::MoveTo(0, 0));
+        let _ = writeln!(stdout, "{:<16}", line1.as_str());
+        let _ = writeln!(stdout, "{:<16}", line2.as_str());
+        let _ = writeln!(stdout, "[1-4]=buttons  <-/->=wheel a/d  q=quit");
+        let _ = stdout.flush();
+    }
+}