From a8a52c8a22637071d9577d2714c99c37a391c8c2 Mon Sep 17 00:00:00 2001
From: Sofia <sofia@teascade.net>
Date: Thu, 28 May 2026 20:40:50 +0300
Subject: [PATCH] Add some new AT commands

---
 src/async_io.rs    | 23 ++++++++++++++++++++++-
 src/at_commands.rs |  4 +---
 src/main.rs        | 24 ++++++++++--------------
 src/states.rs      | 11 +++++++++--
 4 files changed, 42 insertions(+), 20 deletions(-)

diff --git a/src/async_io.rs b/src/async_io.rs
index 325948e..8a7007e 100644
--- a/src/async_io.rs
+++ b/src/async_io.rs
@@ -1,6 +1,6 @@
 use core::cell::RefCell;
 
-use alloc::{rc::Rc, string::String};
+use alloc::{borrow::ToOwned, rc::Rc, string::String};
 use critical_section::Mutex;
 
 #[derive(Clone)]
@@ -17,6 +17,8 @@ pub enum ATCommand {
     CheckSMSFormat,
     /// AT+CSCS=?
     ListTECharacterSets,
+    SetTECharSet(Charset),
+    SendSMS(String, String),
 }
 
 #[derive(Clone)]
@@ -25,6 +27,25 @@ pub enum SMSFormat {
     TextMode = 1,
 }
 
+#[derive(Clone)]
+pub enum Charset {
+    IRA,
+    UCS2,
+    HEX,
+    GSM,
+}
+
+impl Charset {
+    pub fn into_str(&self) -> String {
+        match self {
+            Charset::IRA => "IRA".to_owned(),
+            Charset::UCS2 => "UCS2".to_owned(),
+            Charset::HEX => "HEX".to_owned(),
+            Charset::GSM => "GSM".to_owned(),
+        }
+    }
+}
+
 #[derive(Clone)]
 pub struct Button {
     was_pressed: Rc<Mutex<RefCell<bool>>>,
diff --git a/src/at_commands.rs b/src/at_commands.rs
index b14c81f..ec4ca18 100644
--- a/src/at_commands.rs
+++ b/src/at_commands.rs
@@ -32,8 +32,7 @@ impl<'a, 'd> ATCommands<'a, 'd> {
 
         log::info!("ATCommands Ready!");
         self.delay.delay_millis(1_000);
-
-        log::info!("text: {}", self.flush_rx());
+        self.flush_rx();
     }
 
     pub fn raw_command(&mut self, command: String) -> String {
@@ -99,7 +98,6 @@ impl<'a, 'd> ATCommands<'a, 'd> {
             self.uart.read_ready()
         } {
             let length = self.uart.read(&mut buffer).unwrap();
-            log::info!("{:?}", &buffer[..length]);
             contents += str::from_utf8(&buffer[..length]).unwrap();
         }
 
diff --git a/src/main.rs b/src/main.rs
index d9238da..17bd781 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,6 @@
 #![no_std]
 #![no_main]
+#![feature(ascii_char)]
 #![deny(
     clippy::mem_forget,
     reason = "mem::forget is generally not safe to do with esp_hal types, especially those \
@@ -7,24 +8,13 @@
 )]
 #![deny(clippy::large_stack_frames)]
 
-use core::{
-    cell::{Cell, RefCell},
-    mem::MaybeUninit,
-};
+use core::mem::MaybeUninit;
 
-use alloc::{
-    borrow::ToOwned,
-    boxed::Box,
-    format,
-    string::{String, ToString},
-    sync::Arc,
-    vec::Vec,
-};
-use critical_section::Mutex;
+use alloc::{boxed::Box, format, string::ToString};
 use esp_hal::{
     clock::CpuClock,
     delay::Delay,
-    gpio::{Input, InputConfig, Level, Output, OutputConfig},
+    gpio::{InputConfig, Level, Output, OutputConfig},
     interrupt::software::SoftwareInterruptControl,
     main,
     spi::master::{Config, Spi},
@@ -291,6 +281,12 @@ fn thread_2_main(async_io: AsyncIO, mut at_commands: ATCommands<'static, 'static
                 async_io::ATCommand::ListTECharacterSets => {
                     at_commands.raw_command("AT+CSCS=?".to_string())
                 }
+                async_io::ATCommand::SetTECharSet(charset) => {
+                    at_commands.raw_command(format!("AT+CSCS=\"{}\"", charset.into_str()))
+                }
+                async_io::ATCommand::SendSMS(da, text) => {
+                    at_commands.raw_two_part_command(format!("AT+CMGS={}", da), text)
+                }
             };
             unsafe { async_io.set_at_response(response) };
         }
diff --git a/src/states.rs b/src/states.rs
index 8d72233..1562a36 100644
--- a/src/states.rs
+++ b/src/states.rs
@@ -9,7 +9,7 @@ use alloc::{
 use esp_hal::time::{Duration, Instant};
 
 use crate::{
-    async_io::{ATCommand, SMSFormat},
+    async_io::{ATCommand, Charset, SMSFormat},
     display::{Position, Rgb565},
     font::{HorizontalAlignment, VerticalAlignment},
     state::{State, StateData, TextSettings},
@@ -82,6 +82,13 @@ impl State for InitATState {
                 self.message = "Selecting SMS\nformat".to_owned();
                 None
             }
+            5 => {
+                data.io
+                    .send_at_command(ATCommand::SetTECharSet(Charset::IRA))
+                    .unwrap();
+                self.message = "Selecting SMS\nformat".to_owned();
+                None
+            }
             _ => {
                 data.delay.delay_millis(1000);
                 Some(Box::new(TextState {
@@ -90,7 +97,7 @@ impl State for InitATState {
             }
         };
 
-        self.inner_state = (self.inner_state + 1).min(7);
+        self.inner_state = (self.inner_state + 1).min(200);
         res
     }