EMOJI COMPANIONS / ESP32-C3

PocketSmall robot. Plenty of personality.

Pocket pares the companion idea down to a compact ESP32-C3 layout. Compare a lighter enclosure and a smaller board while keeping an approachable, wired example of display and servo control.

Build with Pocket Explore the design

Includes assembly, starter wiring and executable virtual JavaScript.

ASSEMBLY PREVIEW/EMOJI

Static illustration · loading 3D

Orbit the actual starter assembly. Open the workbench to edit or run it.

6components

11starter connections

0.36 kgestimated component mass

ESP32-C3control platform

Concept illustration · inspect actual geometry above.

A COMPLETE STARTING POINT

Get to know
what's inside.

A lighter desktop companion around a compact C3 board. All 6 components and 11 starter connections remain editable in your own project.

Compact robot layoutsController comparisonsDesktop companions

View the included component types

Emoji enclosure
2S battery · 2.2 Ah
5 V buck regulator
ESP32-C3 compact · virtual controller
Emoji OLED display
Position servo

YOUR FIRST THREE EXPERIMENTS

Build understanding.
One change at a time.

Use the starting assembly to ask better questions about your design. Save a copy, change a parameter and compare what happens.

Inspect the design

Compare the C3 board layout with Pixel's ESP32 DevKit assembly.

Try a change

Inspect the lighter enclosure and the assembly's estimated mass.

Compare and learn

Customize the starter expression sequence without changing the circuit.

emoji-esp32-c3.jsVIRTUAL API

let previous = '';
function step(robot) {
  robot.drive(0, 0);
  if (robot.brownout || robot.battery.voltage < 6.25) { robot.display('🪫'); return; }
  const face = ['😊', '🤖', '◕ ◕', '😴'][Math.floor(robot.time / 2) % 4];
  robot.display(face);
  robot.servo('servo', 0.45 * Math.sin(robot.time));
  if (face !== previous) { robot.log('Expression:', face); previous = face; }
}

The full, editable starter script is included in the workbench.

KNOW WHAT YOU'RE TESTING