Baguette C3 - ESP32-C3 Prototyping Board

The Baguette C3 is a super-compact ESP32-C3 development board designed for prototyping ESP-based projects on a breadboard, and is great as a general development board too! It’s a baby version of our original Baguette S3with a few feature/performance differences.

We designed this because, once fitted to a breadboard, most traditional microcontroller boards usually leave very little space for your project. The Baguette C3 sits on one side, giving you GPIO pins conveniently in order, in a single row, ready to push into a breadboard. It fits perfectly on ahalf-size breadboard, consuming just 16 pins on one side!

We’ve used an ESP32-C3-MINI-1-H4 module on the Baguette C3, a single-core 32-bit microprocessor with 4MB Flash, offering 2.4GHz Wi-Fi (802.11b/g/n) and Bluetooth 5 onboard. The GPIO pins are conveniently laid out in order, in a single row, ready to push into a breadboard, including power pins and UART (RX, TX).

The board features USB-C for power and programming, a Qwiic port for connecting Qwiic add-ons (3.3V only), an onboard RGB LED (WS2812C) and RESET and BOOT buttons. We also added a few quality-of-life touches, like the underside soldering pads as an easier way to solder/re-solder bare wires, M2.5 mounting holes, and high-quality ENIG gold plating to resist corrosion.

The Baguette C3 is available in two configurations – unsoldered with a loose male header strip in the bag (great for embedding into a project), or with a pre-soldered male header (perfect for breadboarding). Select an option before adding to your cart.

Our online guide will get you up and running, showing you how to use the features in Arduino IDE and ESPHome via Home Assistant.

USB-C cable and breadboard not included.

Why ‘Baguette’?

Let’s talk about the name, shall we?

We designed this ‘stick’ primarily for breadboard usage, however ‘BreadStick’ was already being used by other products, so we got our bread-based thinking caps on. Someone suggested ‘Baguette’ as a fitting alternative – we all laughed at them – and then (most likely due to a lack of better options) finally agreed that it works well!

Key Features

Breadboard-lovin’ dev boarddesigned for prototyping projects

ESP32-C3 microcontroller with WiFi and Bluetooth

GPIO pins in order, in a single row perfect for breadboard usage

Qwiic port for connecting Qwiic/STEMMA QT modules

RGB LED for adding blinky to your projects

RESET and BOOT buttons because…you need them

Underside solder padsfor easy wire soldering and re-work

M2.5 mounting holesforfiddly-freemounting

ENIG (Gold) PCB platingfor oxidation resistance and durability

16-pin 2.54mm male header stripincluded (pre-soldered option available)

Board Layout

Specifications

*We state a 500mA minimum because most USB sources offer at least this, but in reality, the board will use a lot less (depending on what you are doing with it).

** Powering via 3.3V requires a well-regulated 3.3V power source. We don’t recommend powering the board this way – best to stick to the 5V pads and let that run through the onboard ME6211 LDO regulator.

Resources

• Baguette C3 User Guide
• 3D Models (STEP):
  • No headers
  • With headers

Datasheets

• ESP32-C3-MINI-1-H4
• WS2812C RGB LED
• Microne ME6211C33M5G-N LDO Regulator

Pinout

Detailed pin information can be found in the user guide.

Dimensions

Note: top corner radius is 2.25mm, bottom corner radius is 1mm.

Package Contents

• 1x Baguette C3 – ESP32-C3Development Board
• 1x 16-pin 2.54mm male header strip
  • Available loose in the bag or pre-soldered – select an option before adding to cart

USB-C cable and breadboard not included