diff --git a/package-lock.json b/package-lock.json
index 3917e20..d429ebc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,6 +12,7 @@
 				"@emotion/styled": "^11.14.1",
 				"@mui/icons-material": "^7.3.1",
 				"@mui/material": "^7.3.1",
+				"clsx": "^2.1.1",
 				"debounce": "^2.2.0",
 				"es-toolkit": "^1.52.0",
 				"eventemitter3": "^5.0.4",
@@ -1605,6 +1606,7 @@
 			"version": "2.1.1",
 			"resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
 			"integrity": "sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA==",
+			"license": "MIT",
 			"engines": {
 				"node": ">=6"
 			}
diff --git a/package.json b/package.json
index 2e2768c..5d93aa6 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
 		"@emotion/styled": "^11.14.1",
 		"@mui/icons-material": "^7.3.1",
 		"@mui/material": "^7.3.1",
+		"clsx": "^2.1.1",
 		"debounce": "^2.2.0",
 		"es-toolkit": "^1.52.0",
 		"eventemitter3": "^5.0.4",
diff --git a/src/pages/edit/Editor/renderer/Node/components/Interface/Value/index.tsx b/src/pages/edit/Editor/renderer/Node/components/Interface/Value/index.tsx
new file mode 100644
index 0000000..e197d38
--- /dev/null
+++ b/src/pages/edit/Editor/renderer/Node/components/Interface/Value/index.tsx
@@ -0,0 +1,73 @@
+import clsx from "clsx";
+import {
+	type SimulationValue,
+	wrappingIncrementSimulationValue,
+} from "../../../../../../../../store/simulation";
+import { stringifySimulationValue } from "../../../../../store/slices/core";
+import styles from "./style.module.css";
+
+/** Values up to this bit width are shown bit by bit */
+const maxBitWidthToShowBits = 8;
+/** Values up to this bit width are shown with wider bits */
+const maxBitWidthToShowWideBits = 4;
+
+type Props = {
+	value: SimulationValue;
+	/** `null` if the value is read-only */
+	onChange: ((value: SimulationValue) => void) | null;
+};
+
+export function CCComponentEditorRendererNodeInterfaceRendererValue({
+	value,
+	onChange,
+}: Props) {
+	if (value.length > maxBitWidthToShowBits) {
+		const label = stringifySimulationValue(value);
+		return onChange ? (
+			<button
+				type="button"
+				className={styles.text}
+				onPointerDown={(e) => e.stopPropagation()}
+				onClick={() => onChange(wrappingIncrementSimulationValue(value))}
+			>
+				{label}
+			</button>
+		) : (
+			<span className={styles.text}>{label}</span>
+		);
+	}
+
+	const isSingleBit = value.length === 1;
+	return (
+		<span
+			className={clsx(
+				styles.bits,
+				isSingleBit
+					? styles.single
+					: value.length <= maxBitWidthToShowWideBits && styles.wide,
+			)}
+		>
+			{value.map((bit, index) => {
+				const className = clsx(styles.bit, bit && styles.on);
+				const label = isSingleBit ? (bit ? "ON" : "OFF") : bit ? "1" : "0";
+				return onChange ? (
+					<button
+						// biome-ignore lint/suspicious/noArrayIndexKey: bits are identified by their index
+						key={index}
+						type="button"
+						className={className}
+						onPointerDown={(e) => e.stopPropagation()}
+						onClick={() => onChange(value.with(index, !bit))}
+					>
+						{label}
+					</button>
+				) : (
+					// biome-ignore lint/suspicious/noArrayIndexKey: bits are identified by their index
+					<span key={index} className={className}>
+						{label}
+					</span>
+				);
+			})}
+		</span>
+	);
+}
diff --git a/src/pages/edit/Editor/renderer/Node/components/Interface/Value/style.module.css b/src/pages/edit/Editor/renderer/Node/components/Interface/Value/style.module.css
new file mode 100644
index 0000000..1027f7f
--- /dev/null
+++ b/src/pages/edit/Editor/renderer/Node/components/Interface/Value/style.module.css
@@ -0,0 +1,60 @@
+.text {
+	padding: 0;
+	border: none;
+	background: none;
+	color: inherit;
+	font: inherit;
+	text-align: center;
+
+	&:is(button) {
+		cursor: pointer;
+	}
+}
+
+.bits {
+	display: flex;
+	align-self: center;
+	overflow: hidden;
+	border: 0.5px solid var(--color-border);
+	border-radius: 2px;
+
+	&.single {
+		align-self: stretch;
+	}
+}
+
+.bit {
+	display: flex;
+	justify-content: center;
+	align-items: center;
+	width: 10px;
+	height: 12px;
+	padding: 0;
+	border: none;
+	background: var(--color-white);
+	color: inherit;
+	font: inherit;
+	font-size: 8px;
+	text-align: center;
+
+	& + & {
+		border-left: 0.5px solid var(--color-border);
+	}
+
+	&.on {
+		background: var(--color-primary-light);
+		color: var(--color-white);
+	}
+
+	.single > & {
+		flex: 1;
+	}
+
+	.wide > & {
+		width: 16px;
+	}
+
+	&:is(button) {
+		cursor: pointer;
+	}
+}
diff --git a/src/pages/edit/Editor/renderer/Node/components/Interface/geometry.ts b/src/pages/edit/Editor/renderer/Node/components/Interface/geometry.ts
index 95e8568..1a8a612 100644
--- a/src/pages/edit/Editor/renderer/Node/components/Interface/geometry.ts
+++ b/src/pages/edit/Editor/renderer/Node/components/Interface/geometry.ts
@@ -5,7 +5,7 @@ import type {
 	CCComponentEditorRendererNodeLayoutSource,
 } from "../../types";
 
-const bodyWidth = 70;
+const bodyWidth = 90;
 const arrowDepth = 10;
 
 export const ccComponentEditorRendererNodeInterfaceLayoutConstants = {
diff --git a/src/pages/edit/Editor/renderer/Node/components/Interface/index.tsx b/src/pages/edit/Editor/renderer/Node/components/Interface/index.tsx
index e53aa82..0c718b1 100644
--- a/src/pages/edit/Editor/renderer/Node/components/Interface/index.tsx
+++ b/src/pages/edit/Editor/renderer/Node/components/Interface/index.tsx
@@ -2,14 +2,14 @@ import nullthrows from "nullthrows";
 import { ccIntrinsicComponentTypes } from "../../../../../../../store/intrinsics/types";
 import { useStore } from "../../../../../../../store/react";
 import { useComponentPin } from "../../../../../../../store/react/selectors";
-import { wrappingIncrementSimulationValue } from "../../../../../../../store/simulation";
+import type { SimulationValue } from "../../../../../../../store/simulation";
 import { useComponentEditorStore } from "../../../../store";
-import { stringifySimulationValue } from "../../../../store/slices/core";
 import nodeStyles from "../../style.module.css";
 import type { CCComponentEditorRendererNodeRendererProps } from "../../types";
 import { ccComponentEditorRendererNodeInterfaceLayoutConstants as constants } from "./geometry";
 import { CCComponentEditorRendererNodeInterfaceRendererRenameButton } from "./RenameButton";
 import styles from "./style.module.css";
+import { CCComponentEditorRendererNodeInterfaceRendererValue } from "./Value";
 
 export function CCComponentEditorRendererNodeInterfaceRenderer(
 	props: CCComponentEditorRendererNodeRendererProps,
@@ -26,29 +26,23 @@ export function CCComponentEditorRendererNodeInterfaceRenderer(
 	);
 	const isEditMode = editorState.editorMode === "edit";
 
-	const { value, onClick } = isEditMode
-		? { value: null, onClick: null }
+	const simulation = isEditMode
+		? null
 		: componentPin.type === "input"
 			? (() => {
 					const inputValueKey = {
 						componentPinId: componentPin.id,
 						timeStep: editorState.timeStep,
 					};
-					const value = nullthrows(editorState.getInputValue(inputValueKey));
 					return {
-						value: stringifySimulationValue(value),
-						onClick: () =>
-							editorState.setInputValue(
-								inputValueKey,
-								wrappingIncrementSimulationValue(value),
-							),
+						value: nullthrows(editorState.getInputValue(inputValueKey)),
+						onChange: (value: SimulationValue) =>
+							editorState.setInputValue(inputValueKey, value),
 					};
 				})()
 			: {
-					value: stringifySimulationValue(
-						nullthrows(editorState.getNodePinValue(nodePin.id)),
-					),
-					onClick: null,
+					value: nullthrows(editorState.getNodePinValue(nodePin.id)),
+					onChange: null,
 				};
 
 	const { bodyWidth, arrowDepth, width, height } = constants;
@@ -65,16 +59,6 @@ export function CCComponentEditorRendererNodeInterfaceRenderer(
 				points={points}
 				strokeLinejoin="round"
 				className={nodeStyles.shape}
-				{...(onClick
-					? {
-							onPointerDown: (e: React.PointerEvent) => {
-								// Prevent the node from being selected or dragged
-								e.stopPropagation();
-								onClick();
-							},
-							style: { cursor: "pointer" },
-						}
-					: {})}
 			/>
 			<foreignObject
 				x={bodyX}
@@ -83,7 +67,7 @@ export function CCComponentEditorRendererNodeInterfaceRenderer(
 				height={height}
 				className={styles.contentContainer}
 			>
-				{isEditMode ? (
+				{simulation === null ? (
 					<div className={styles.edit}>
 						<span className={styles.name}>{componentPin.name}</span>
 						<CCComponentEditorRendererNodeInterfaceRendererRenameButton
@@ -96,7 +80,10 @@ export function CCComponentEditorRendererNodeInterfaceRenderer(
 				) : (
 					<div className={styles.simulation}>
 						<span className={styles.name}>{componentPin.name}</span>
-						<span className={styles.value}>{value}</span>
+						<CCComponentEditorRendererNodeInterfaceRendererValue
+							value={simulation.value}
+							onChange={simulation.onChange}
+						/>
 					</div>
 				)}
 			</foreignObject>
diff --git a/src/pages/edit/Editor/renderer/Node/components/Interface/style.module.css b/src/pages/edit/Editor/renderer/Node/components/Interface/style.module.css
index 0e2eca1..dd1cf41 100644
--- a/src/pages/edit/Editor/renderer/Node/components/Interface/style.module.css
+++ b/src/pages/edit/Editor/renderer/Node/components/Interface/style.module.css
@@ -26,12 +26,9 @@
 	justify-content: center;
 	height: 100%;
 	padding: 0 4px;
+	gap: 1px;
 
 	& .name {
 		font-size: 8px;
 	}
-
-	& .value {
-		text-align: center;
-	}
 }
diff --git a/src/style.css b/src/style.css
index 9436309..aee1a98 100644
--- a/src/style.css
+++ b/src/style.css
@@ -12,6 +12,7 @@
 	--color-white: #ffffff;
 	--color-text-primary: #444444;
 	--color-primary: #009966;
+	--color-primary-light: #33ad84;
 	--color-error: #ff0000;
 	--color-border: #bbbbbb;
 	--color-editor-background: #fafafa;
diff --git a/src/style.ts b/src/style.ts
index c21e4c1..3843eb2 100644
--- a/src/style.ts
+++ b/src/style.ts
@@ -6,6 +6,7 @@ export const theme = {
 		white: "#ffffff",
 		textPrimary: "#444444",
 		primary: "#009966",
+		primaryLight: "#33ad84",
 		error: "#ff0000",
 		border: "#bbbbbb",
 		editorBackground: "#fafafa",