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May 23 2017

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Hornbill ESP32 Dev

Start your ESP32 development with the breadboard-friendly Dev board. Built-in USB serial and single cell LiPo charger at a price only available during the campaign.


An affordable, rugged, secure, and open hardware platform for battery powered connected things with ESP32

As Featured In

CNXSoft - Embedded Systems News

"... if you plan to use it outdoor... you need to protect your hardware from rain and dust."


"Hornbill boards will be able to run a Hornbill IO stack for cloud connectivity built on Amazon’s AWS IoT platform."


"Ready to go from idea to prototype to something presentable in no time? You may want to check out this ESP32-based kit on Crowd Supply!"



"A very easy and inexpensive way to get into the ESP32 ecosystem."

Hornbill is a development platform for the Internet of Things. It’s a set of hardware tools, firmware, and templates for local and cloud-based apps for controlling your project. It’s for makers, engineers, and small companies who want to build secure and robust network-connected things at a fraction of the cost of other platforms.

Hornbill helps you build better prototypes with affordable, secure, and feature-rich hardware based on solid firmware and Open Source, platform-agnostic app and cloud-based software.

The core objective of the Hornbill project is to develop tools that are open, reliable, and consistently supported and expanded over time. We believe the real value in connected things lies in use cases that provide real insights, that help conserve resources, and that reduce costs.

The aim is not to build yet another IoT platform, but to use the best of open tools to help you build a solution, the way current web technologies work.

Features & Specifications

Hornbill ESP32 Hardware

Hornbill hardware empowers you to build better prototypes. Hornbill hardware was built to serve our prototyping needs, so we are confident it will serve you well. It’s time to get rid of loose wires, double-sided tape, and tin cans!

Hornbill ESP32 Dev

Hornbill ESP32 dev is breadboard-friendly dev board with tons of features. You can build your next connected thing with just this one board.

  • Breadboard-friendly pinout
  • Built-in CP21XX USB-to-serial
  • Single cell LiPo charger
  • ESP WROOM32 FCC, CE, IC, MIC (Telec), KCC, and NCC certified module.
    • Xtensa dual-core, 32-bit LX6 processor
    • Wi-Fi: 802.11b/g/n/e/i
    • Bluetooth: v4.2 BR/EDR and BLE
    • 12-bit SAR ADC up to 18 channels
    • 2 × 8-bit DACs
    • 10 × touch sensors
    • Temperature sensor
    • 4 × SPI
    • 2 × I²S
    • 2 × I²C
    • 3 × UART
    • 1 SD/SDIO/MMC host
    • 1 slave (SDIO/SPI)
    • Ethernet MAC interface with dedicated DMA and IEEE 1588 support
    • CAN bus 2.0
    • IR (TX/RX)
    • Motor PWM
    • Built in remote peripheral up to eight channels
    • Hall effect sensor
    • Ultra low power, analog pre-amplifier
    • Supports all IEEE 802.11 standard security features, including WFA, WPA/WPA2 and WAPI
    • Secure boot
    • Flash encryption
    • 1024-bit OTP, up to 768-bit for customers
    • Cryptographic hardware acceleration: AES, SHA-2, RSA, ECC, random number generator (RNG)

Awesome Things We Have Built With Hornbill

Hornbill OUR (Open Universal Remote)

Hornbill OUR (Open Universal Remote) is a Bluetooth (BLE), Infrared (IR) bridge that can control all the IR devices in your home with a smartphone app. It is a single chip solution that uses Hornbill’s built-in Bluetooth and remote peripherals. It’s an excellent demonstration of what’s possible with Hornbill. Learn more about the project at its github repo

Hornbill Lights

Hornbill lights helps you create great ambience with addressable RGB LED lights. Hornbill Lights can be controlled via Bluetooth using a smartphone app. It allows you to repeatedly play random light effects or set a solid color that matches your mood! Visit the project’s Github repo for details.

What Will You Make?

Custom Solutions

Looking for consulting and custom PCB designs based on Hornbill? Get in touch!

Hornbill Cross Platform Apps

We will be publishing cross-platform apps for Android and iOS. These are being built with Ionic Cardova. They will be released as open source. So go ahead and fork them and build your own custom app!

Hornbill IO

Hornbill IO is built on AWS IoT. AWS IoT mandates use of Transport Layer Security (TLS 1.2) which enables end to end encryption of the data. Hornbill IO can be used to evaluate the cloud needs for your application. The work done for Hornbill IO will be released as open source, which will enable you to host applications with your custom domain. Hobby and maker projects can securely use Hornbill IO without the fear of connecting un-encrypted devices to cloud.

Each device purchased during the campaign will get 10K of free messages per year.

Manufacturing Plan

We have pre-ordered the major parts for the first batch of 100 boards. We also plan to order the next batch of parts during the campaign. So, we should be able to ship the pledges within schedule.

Risks & Challenges

The dev boards have gone through several iterations, we do not foresee any major challenges in manufacturing and shipping the hardware. However, a ton of effort is needed in the firmware, libraries and apps. We believe with your support our dedicated engineers will make this happen.

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Explore Embedded

We strive to provide useful tutorials, development tools, and products.

Sandeep Patil

Co-founder, CEO

Saheblal Bagwan

Co-founder, CTO

Sharana Gowda

Co-founder, Hardware Engineer

Gururaghavendra Hasigal

Senior Hardware Engineer

Mitchell Mawniuh

Software Engineer

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