WIP FIXUP: Show DENMS for a minimum time

WIP denm: Show warning symbol
TODO: Show distance to DENM?
2026-09-25 11:16:04 +02:00 · 2026-09-24 21:13:29 +02:00 · 2026-09-24 21:11:37 +02:00 · 2026-09-21 12:08:27 +02:00 · 2026-09-21 12:07:19 +02:00 · 2026-09-19 18:22:15 +02:00
15 changed files with 240279 additions and 22 deletions
--- a/.gitignore
+++ b/.gitignore
@ -28,3 +28,6 @@ target/
 # Ignore KiCad backups and lock files
 hardware/c_its-companion/c_its-companion-backups/
 *.kicad_pro.lck
+
+# Ignore FreeCAD backups
+*.FCBak
--- a/Readme.md
+++ b/Readme.md
@ -120,6 +120,24 @@ The unit tests in this project are meant to be run on the host:
 cargo test --target host-tuple --bin test --no-default-features -F std,spat
 ```

+## PCB and Housing
+A simple PCB to combine the u-blox SAM-M10Q, a XIAO ESP32-C5 and the screen can be found in [hardware/c_its-companion/](./hardware/c_its-companion/) including finished gerber files.
+Additional hardware:
+
+- SMD Pin-Header 8 pos.: Amphenol 10129380-908001BLF
+- Snap-in stand-off 8mm: WE 702910000
+
+(You may try to put the display lower with header Samtech TSM-108-04-T-SV and stand-off WE 702917000, but antenna needs to be plugged in before putting the display on then.)
+
+The housing is a FreeCAD model at [hardware/housing/c_its-companion-housing.FCStd](./hardware/housing/c_its-companion-housing.FCStd), but the same folder also contains finished 3mf models that can be loaded into a 3D printer slicer.
+Exports are available for:
+
+- 2mm: no battery (just display standoffs)
+- 7mm: EREMIT 654060 (6.5x40x60 mm) LiPo battery
+- 9mm: Some 9x40x60 mm LiPo battery, e.g. LP803860 (2000 mAh)
+
+The display is expected to be soldered to the pin header directly to save height.
+
 ## Tips and Tricks

 ### Create TGA Assets
--- a/hardware/c_its-companion/c_its-companion.kicad_pcb
+++ b/hardware/c_its-companion/c_its-companion.kicad_pcb
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 		)
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 			(plot_on_all_layers_selection 0x00000000_00000000_00000000_00000000)
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 				(xy -6.002616 -2.986832) (xy -6.30109 -2.996639) (xy -6.397268 -2.999082) (xy -6.484282 -2.999951)
 				(xy -6.556481 -2.999292) (xy -6.608213 -2.997158) (xy -6.633616 -2.99368) (xy -6.66858 -2.974935)
@ -825,7 +826,7 @@
 				(xy -7.162357 -3.444481) (xy -7.153911 -3.447159) (xy -7.142305 -3.449641) (xy -7.126454 -3.451938)
 				(xy -7.105275 -3.454055) (xy -7.077685 -3.456) (xy -7.042598 -3.457781) (xy -6.998933 -3.459402)
 				(xy -6.945605 -3.460874) (xy -6.88153 -3.462203) (xy -6.805626 -3.463396) (xy -6.716807 -3.464461)
-				(xy -6.613992 -3.465405) (xy -6.496094 -3.466235) (xy -6.362033 -3.466958) (xy -6.210722 -3.467583)
+				(xy -6.613993 -3.465405) (xy -6.496094 -3.466235) (xy -6.362033 -3.466958) (xy -6.210722 -3.467583)
 				(xy -6.04108 -3.468115) (xy -5.852022 -3.468563) (xy -5.642465 -3.468934) (xy -5.411324 -3.469235)
 				(xy -5.157517 -3.469473) (xy -4.879959 -3.469656) (xy -4.577567 -3.469791) (xy -4.249257 -3.469885)
 				(xy -3.893946 -3.469946) (xy -3.51055 -3.46998) (xy -3.097985 -3.469996) (xy -2.655167 -3.47) (xy -2.503555 -3.47)
--- a/hardware/c_its-companion/c_its-companion.kicad_pro
+++ b/hardware/c_its-companion/c_its-companion.kicad_pro
@ -622,7 +622,7 @@
      "netlist": "",
      "plot": "",
      "specctra_dsn": "",
-      "step": "",
+      "step": "../housing/c_its-companion-v1.0.step",
      "vrml": ""
    },
    "page_layout_descr_file": ""
--- a/hardware/housing/ST7789-240x280px-screen.FCStd
+++ b/hardware/housing/ST7789-240x280px-screen.FCStd
--- a/hardware/housing/c_its-companion-assembly.FCStd
+++ b/hardware/housing/c_its-companion-assembly.FCStd
--- a/hardware/housing/c_its-companion-housing-bottom-2mm.3mf
+++ b/hardware/housing/c_its-companion-housing-bottom-2mm.3mf
--- a/hardware/housing/c_its-companion-housing-bottom-7mm.3mf
+++ b/hardware/housing/c_its-companion-housing-bottom-7mm.3mf
--- a/hardware/housing/c_its-companion-housing-bottom-9mm.3mf
+++ b/hardware/housing/c_its-companion-housing-bottom-9mm.3mf
--- a/hardware/housing/c_its-companion-housing-lid.3mf
+++ b/hardware/housing/c_its-companion-housing-lid.3mf
--- a/hardware/housing/c_its-companion-housing.FCStd
+++ b/hardware/housing/c_its-companion-housing.FCStd
--- a/hardware/housing/c_its-companion-v1.0.step
+++ b/hardware/housing/c_its-companion-v1.0.step
--- a/hardware/housing/overpass-semibold.otf
+++ b/hardware/housing/overpass-semibold.otf
--- a/src/main.rs
+++ b/src/main.rs
@ -585,6 +585,7 @@ async fn main(spawner: Spawner) -> ! {
                                        .update(screen::ScreenState::DenmWarning(cc))
                                        .inspect_err(log_screen_error);
                                }
+                                // TODO: cancel screen, if None?
                                _ => {}
                            }

--- a/src/screen.rs
+++ b/src/screen.rs
@ -7,6 +7,9 @@ use embedded_graphics::{geometry, mono_font, pixelcolor, primitives, text};

 use crate::applogic;

+#[cfg(feature = "denm")]
+const DENM_MIN_DISPLAY_TIME: esp_hal::time::Duration = esp_hal::time::Duration::from_secs(5);
+
 pub struct DisplaySize {
    width: u16,
    height: u16,
@ -25,6 +28,8 @@ where
    prev_state: ScreenState,
    hb_state: bool,
    gnss_hb_state: bool,
+    #[cfg(feature = "denm")]
+    denm_display_start_time: esp_hal::time::Instant,

    // assets
    #[cfg(feature = "spat")]
@ -135,6 +140,8 @@ where
            prev_state: ScreenState::Uninitialized,
            hb_state: false,
            gnss_hb_state: false,
+            #[cfg(feature = "denm")]
+            denm_display_start_time: esp_hal::time::Instant::EPOCH,
            #[cfg(feature = "spat")]
            bike_image,
            // #[cfg(feature = "denm")]
@ -149,6 +156,27 @@ where
    }

    pub fn update(&mut self, state: ScreenState) -> Result<(), D::Error> {
+        #[cfg(feature = "denm")]
+        let now = esp_hal::time::Instant::now();
+
+        #[cfg(feature = "denm")]
+        // when a DENM was shown before, make sure it's shown for a minimum time
+        if let ScreenState::DenmWarning(_) = self.prev_state {
+            use core::ops::Sub;
+
+            // update DENM display, if there are updates
+            if self.prev_state != state
+                && let ScreenState::DenmWarning(cause_code_choice) = &state
+            {
+                return self.draw_denm_warning(cause_code_choice);
+            }
+
+            // otherwise early return when timer isn't expired yet
+            if now.sub(self.denm_display_start_time) < DENM_MIN_DISPLAY_TIME {
+                return Ok(());
+            }
+        }
+
        if self.prev_state != state {
            match &state {
                ScreenState::Uninitialized | ScreenState::Initial => self.draw_slash_screen()?,
@ -167,6 +195,7 @@ where
                ScreenState::Error(msg) => self.draw_message(msg)?,
                #[cfg(feature = "denm")]
                ScreenState::DenmWarning(cause_code_choice) => {
+                    self.denm_display_start_time = now;
                    self.draw_denm_warning(cause_code_choice)?
                }
            }
@ -205,6 +234,7 @@ where
    }

    // on big screns: uses full screen width and height from 250 to 280 pixels
+    #[cfg(feature = "gnss_ubx")]
    pub fn update_gnss(
        &mut self,
        pvt: &ublox::nav_pvt::proto27::NavPvtRef,
Author	SHA1	Message	Date
Jannik Beyerstedt	96cf9aeaa2	WIP FIXUP: Show DENMS for a minimum time	2026-09-25 11:16:04 +02:00
Jannik Beyerstedt	7ec7ebda8a	WIP denm: Show warning symbol TODO: Show distance to DENM?	2026-09-24 21:13:29 +02:00
Jannik Beyerstedt	9d2a8d31e7	Hardware: Add housing	2026-09-24 21:11:37 +02:00
Jannik Beyerstedt	dc3c3937b7	Hardware: Create 3D model of display module	2026-09-21 12:08:27 +02:00
Jannik Beyerstedt	f5665ed0f2	PCB: Move coordinate origin, export STEP file	2026-09-21 12:07:19 +02:00
Jannik Beyerstedt	813ee3723c	screen: Add missing feature flag	2026-09-19 18:22:15 +02:00