diff --git a/showbits-thermal-printer-ui/src/components/CSegment.vue b/showbits-thermal-printer-ui/src/components/CSegment.vue
index 457d430..ac358af 100644
--- a/showbits-thermal-printer-ui/src/components/CSegment.vue
+++ b/showbits-thermal-printer-ui/src/components/CSegment.vue
@@ -4,14 +4,16 @@ import CSegmentCalendar from "./CSegmentCalendar.vue";
 import CSegmentEgg from "./CSegmentEgg.vue";
 import CSegmentText from "./CSegmentText.vue";
 import CSegmentTictactoe from "./CSegmentTictactoe.vue";
+import CSegmentCells from "./CSegmentCells.vue";
 
-const mode = ref<"calendar" | "egg" | "text" | "tictactoe">();
+const mode = ref<"calendar" | "cells" | "egg" | "text" | "tictactoe">();
 </script>
 
 <template>
   <div class="outer">
     <button v-if="mode" class="close" @click="mode = undefined">X</button>
     <CSegmentCalendar v-if="mode === 'calendar'" />
+    <CSegmentCells v-if="mode === 'cells'" />
     <CSegmentEgg v-if="mode === 'egg'" />
     <CSegmentText v-if="mode === 'text'" />
     <CSegmentTictactoe v-if="mode === 'tictactoe'" />
@@ -20,7 +22,7 @@ const mode = ref<"calendar" | "egg" | "text" | "tictactoe">();
       <p>What do you want to print?</p>
       <div class="list">
         <button @click="mode = 'calendar'">Calendar</button>
-        <button @click="mode = 'text'">Cellular Automaton</button>
+        <button @click="mode = 'cells'">Cellular Automaton</button>
         <button @click="mode = 'text'">Chat Message</button>
         <button @click="mode = 'egg'">Easter Egg</button>
         <button @click="mode = 'text'">Text</button>
diff --git a/showbits-thermal-printer-ui/src/components/CSegmentCells.vue b/showbits-thermal-printer-ui/src/components/CSegmentCells.vue
new file mode 100644
index 0000000..3b2425b
--- /dev/null
+++ b/showbits-thermal-printer-ui/src/components/CSegmentCells.vue
@@ -0,0 +1,69 @@
+<script setup lang="ts">
+import { useApiRequest } from "@/apiRequest";
+import { ref } from "vue";
+import CSegmentError from "./CSegmentError.vue";
+
+const { disabled, error, makeRequest } = useApiRequest();
+
+const showRule = ref(true);
+const rule = ref<number | string>("");
+const rows = ref(128);
+const scale = ref(4);
+const feed = ref(true);
+
+function submit() {
+  const data = new URLSearchParams();
+  data.append("show_rule", String(showRule.value));
+  if (typeof rule.value === "number") data.append("rule", rule.value.toFixed());
+  data.append("rows", rows.value.toFixed());
+  data.append("scale", scale.value.toFixed());
+  data.append("feed", String(feed.value));
+  void makeRequest("/api/cells", data);
+}
+</script>
+
+<template>
+  <form @submit.prevent="submit">
+    <h2>Cellular Automaton</h2>
+    <label class="wide">
+      Rule:
+      <input
+        v-model="rule"
+        type="number"
+        min="0"
+        max="127"
+        placeholder="random"
+        :disabled
+      />
+    </label>
+    <label class="wide">
+      Rows:
+      <input v-model="rows" type="number" min="1" max="1024" :disabled />
+    </label>
+    <label class="wide">
+      Scale:
+      <input v-model="scale" type="number" min="1" max="16" :disabled />
+    </label>
+    <div class="wide">
+      <label>
+        <input v-model="showRule" type="checkbox" :disabled /> Show rule
+      </label>
+      <label><input v-model="feed" type="checkbox" :disabled /> Feed</label>
+    </div>
+    <button :disabled>Print</button>
+    <CSegmentError :message="error" />
+  </form>
+</template>
+
+<style scoped>
+form {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+
+.wide {
+  display: flex;
+  flex-direction: column;
+}
+</style>