diff --git a/sdk/commands/inputs.ts b/sdk/commands/inputs.ts
index 8e4491c..a0296a9 100644
--- a/sdk/commands/inputs.ts
+++ b/sdk/commands/inputs.ts
@@ -1,4 +1,4 @@
-import { bitFields, uint16_t } from "@nmann/struct-buffer";
+import { bits, uint16_t } from "@nmann/struct-buffer";
 
 export type EachSensor<T> = {
   up: T;
@@ -7,6 +7,8 @@ export type EachSensor<T> = {
   left: T;
 };
 
+export type PanelName = keyof EachPanel<any>;
+
 export type EachPanel<T> = {
   up_left: T;
   up: T;
@@ -19,15 +21,14 @@ export type EachPanel<T> = {
   down_right: T;
 };
 
-// TODO: This should be a bits object probably
-export const StageInputs = bitFields(uint16_t, {
-  up_left: 1,
+export const StageInputs = bits(uint16_t, {
+  up_left: 0,
   up: 1,
-  up_right: 1,
-  left: 1,
-  center: 1,
-  right: 1,
-  down_left: 1,
-  down: 1,
-  down_right: 1,
+  up_right: 2,
+  left: 3,
+  center: 4,
+  right: 5,
+  down_left: 6,
+  down: 7,
+  down_right: 8,
 });
diff --git a/ui/stage/fsr-panel.tsx b/ui/stage/fsr-panel.tsx
index 004acd9..cd68cac 100644
--- a/ui/stage/fsr-panel.tsx
+++ b/ui/stage/fsr-panel.tsx
@@ -3,12 +3,18 @@ import type { SMXPanelTestData } from "../../sdk/commands/sensor_test";
 
 interface EnabledProps {
   data: SMXPanelTestData;
+  active: boolean | undefined;
 }
 
 export function FsrPanel(props: EnabledProps) {
   const { bad_sensor_input, have_data_from_panel, sensor_level } = props.data;
   return (
-    <div className={cn("panel", { active: have_data_from_panel })}>
+    <div
+      className={cn("panel", {
+        commErr: !have_data_from_panel,
+        active: props.active,
+      })}
+    >
       <Fsr
         className="top horiz"
         badInput={bad_sensor_input.up}
diff --git a/ui/stage/simple-pad.tsx b/ui/stage/simple-pad.tsx
index 7adcb2a..cef0f49 100644
--- a/ui/stage/simple-pad.tsx
+++ b/ui/stage/simple-pad.tsx
@@ -8,7 +8,7 @@ interface Props {
 }
 
 export function SimplePad({ dev }: Props) {
-  const [panelStates, setPanelStates] = useState<number[]>([]);
+  const [panelStates, setPanelStates] = useState<boolean[]>([]);
 
   useEffect(
     () =>
@@ -27,7 +27,7 @@ export function SimplePad({ dev }: Props) {
             panelStates.down_right,
           ]);
         }),
-    [dev],
+    [dev]
   );
 
   return (
diff --git a/ui/stage/stage-test.tsx b/ui/stage/stage-test.tsx
index 7b62567..2999ab5 100644
--- a/ui/stage/stage-test.tsx
+++ b/ui/stage/stage-test.tsx
@@ -1,15 +1,37 @@
 import { useAtomValue, type Atom } from "jotai";
 import { useEffect, useState } from "react";
-import type { SMXSensorTestData } from "../../sdk/commands/sensor_test";
+import type {
+  SMXPanelTestData,
+  SMXSensorTestData,
+} from "../../sdk/commands/sensor_test";
 import { requestTestData } from "../pad-coms";
 import { FsrPanel } from "./fsr-panel";
+import { SmxStage } from "../../sdk";
+import {
+  StageInputs,
+  type EachPanel,
+  type PanelName,
+} from "../../sdk/commands/inputs";
+import { HID_REPORT_INPUT_STATE } from "../../sdk/packet";
 
-export function StageTest({
-  deviceAtom,
-}: {
-  deviceAtom: Atom<HIDDevice | undefined>;
-}) {
-  const device = useAtomValue(deviceAtom);
+function useInputState(dev: HIDDevice | undefined) {
+  const [panelStates, setPanelStates] = useState<
+    EachPanel<boolean> | undefined
+  >();
+  useEffect(() => {
+    if (!dev) return;
+    function handleInputReport(e: HIDInputReportEvent) {
+      if (e.reportId !== HID_REPORT_INPUT_STATE) return;
+      const state = StageInputs.decode(e.data, true);
+      setPanelStates(state);
+    }
+    dev.addEventListener("inputreport", handleInputReport);
+    return () => dev.removeEventListener("inputreport", handleInputReport);
+  }, [dev]);
+  return panelStates;
+}
+
+function useTestData(device: HIDDevice | undefined) {
   const [testData, setTestData] = useState<SMXSensorTestData>();
 
   useEffect(() => {
@@ -29,14 +51,31 @@ export function StageTest({
     return () => cancelAnimationFrame(handle);
   }, [device]);
 
+  return testData;
+}
+
+export function StageTest({
+  deviceAtom,
+}: {
+  deviceAtom: Atom<HIDDevice | undefined>;
+}) {
+  const device = useAtomValue(deviceAtom);
+  const testData = useTestData(device);
+  const inputState = useInputState(device);
+
   if (!testData) {
     return null;
   }
 
+  const entries = Object.entries(testData.panels) as [
+    PanelName,
+    SMXPanelTestData
+  ][];
+
   return (
     <div className="pad">
-      {Object.entries(testData.panels).map(([key, data]) => (
-        <FsrPanel key={key} data={data} />
+      {entries.map(([key, data]) => (
+        <FsrPanel active={inputState?.[key]} key={key} data={data} />
       ))}
     </div>
   );
diff --git a/ui/state.ts b/ui/state.ts
index 56a8bc3..c7fe862 100644
--- a/ui/state.ts
+++ b/ui/state.ts
@@ -31,4 +31,4 @@ export const statusText$ = atom(
 );
 
 /** write-only atom. write to this to append a line to statusText */
-export const nextStatusTextLine$ = atom(null, (_, set, line: string) => set(statusText$, (prev) => prev + line));
+export const nextStatusTextLine$ = atom(null, (_, set, line: string) => set(statusText$, (prev) => prev + "\n" + line));
diff --git a/ui/styles.css b/ui/styles.css
index 47eb5f7..01f3c7f 100644
--- a/ui/styles.css
+++ b/ui/styles.css
@@ -81,13 +81,17 @@ button:focus {
   gap: 1em 1em;
   height: 20em;
   width: 20em;
+  margin-right: 1em;
 }
 .panel {
   outline: 2px solid #ddd;
   position: relative;
 }
 .panel.active {
-  background-color: yellow;
+  background-color: #00ff00;
+}
+.panel.commErr {
+  background-color: red;
 }
 
 .fsr {
diff --git a/ui/ui.tsx b/ui/ui.tsx
index 28a99ab..509fe69 100644
--- a/ui/ui.tsx
+++ b/ui/ui.tsx
@@ -14,7 +14,7 @@ export function UI() {
         devices.map((device) => {
           console.log(`Found device: ${device.productName}`);
           open_smx_device(device);
-        }),
+        })
       );
     }
   }, []);
@@ -22,8 +22,8 @@ export function UI() {
   return (
     <>
       <h1>SMX Web Config</h1>
-      <StageTest deviceAtom={p1Dev$} />
       <StageTest deviceAtom={p2Dev$} />
+      <StageTest deviceAtom={p1Dev$} />
       <PickDeviceButton /> <DebugCommands />
       <StatusDisplay />
     </>