Joey Castillo
Joined Dec 03, 2019. Backed 13 projects.
Past Events
- Jun 20, 2025 From Milliamperes to Microamperes: Lessons in Low-Power Gadgetmaking at Teardown 2025
- Jun 22, 2024 Accounting for Making Objects at Teardown 2024
Updates Authored
- Jan 10, 2022 Sensor Watch: Our Campaign Is Now Live on Crowd Supply!
- Jan 12, 2022 Sensor Watch: Fully Funded in 23 Hours! What’s next?
- Jan 20, 2022 Sensor Watch: Week Two: Your Questions, My Questions, and a Camping Trip
- Jan 27, 2022 Sensor Watch: Week Three: Coding a New Watch Face & Another Bike Ride
- Feb 03, 2022 Sensor Watch: How We Got To Blinky: A Tour of Our Circuit Board
- Feb 10, 2022 Sensor Watch: Sleep Mode, Battery Tests, and a Sunrise/Sunset Simulator
- Feb 17, 2022 Sensor Watch: Flex PCB’s, Sensor Boards, Lower Low Power, and the Solar System on Your Wrist
- Apr 07, 2022 Sensor Watch: Blue Boards Shipping (Check Your Address!), Green Boards Delayed, and Other News of the Watch
- May 26, 2022 Sensor Watch: Good News on the Parts Shortage, Sensor Watch Field Reports, and New Community Watch Faces
- Jul 07, 2022 Sensor Watch: Green Boards Underway, Battery Experiments, and a Teardown Session Tomorrow!
- Sep 27, 2022 Sensor Watch: Green Boards Shipping, Battery Life Updates and Other News of the Watch
- Dec 08, 2022 Sensor Watch: All Boards Shipping, Lessons Learned, and a Fork in the Road for Sensor Watch
- Apr 18, 2023 Sensor Watch: Opening a New Chapter & Closing the Books on the Original Sensor Watch
- Aug 31, 2023 Sensor Watch: Sensor Watch Lite shipping soon — check your shipping details!
- Jul 30, 2024 Sensor Watch Pro: The Sensor Watch Pro pre-launch is live!
- Jul 30, 2024 Sensor Watch: Announcing the Sensor Watch Pro Campaign Pre-launch
- Oct 23, 2024 Sensor Watch Pro: Sleep Tracking with Sensor Watch Pro and the Accelerometer Add-On
- Oct 02, 2024 Sensor Watch Pro: Fully Funded in Under a Week! Also: a Tour of Second Movement, the NEW Community Firmware for Sensor Watch
- Oct 29, 2024 Sensor Watch Pro: Custom Parts, Taming the DST Beast, and Sensor Watch at Hackaday Supercon!
- Sep 25, 2024 Sensor Watch Pro: At long last, the Sensor Watch Pro campaign is live!
- Oct 09, 2024 Sensor Watch Pro: The Enchanted Inductor: How We Made Sensor Watch Pro’s Buzzer LOUD
- Mar 22, 2025 Sensor Watch Pro: The Big Backer Update
- May 29, 2025 Sensor Watch Pro: The Shippening Part 1, Movement Improvements, and Sensor Watch at Teardown!
Projects Launched
Open Book Touch
A pocketable, open-source backlit e-reader
Sensor Watch Pro
A more hackable ARM Cortex M0+ brain upgrade for Casio's iconic F-91W
Sensor Watch
A hackable ARM Cortex M0+ upgrade for a classic Casio wristwatch
Projects Backed
Pixelblaze V3
A Wi-Fi-enabled, live-codable LED controller with a web-based development environment
Anwaar (أنوار)
A platform for personalized portable PCB tokens
TermDriver 2
A better USB-to-serial adapter with a built-in screen
The New Essential Guide to Electronics in Shenzhen
Everything you need to navigate the world's largest electronics market
BeanCounter
A simple, battery-powered, pocket-sized, open-source parts counter for 8-mm cut tape and partial reels
Inkplate 6COLOR
Versatile, easy-to-use, Wi-Fi-enabled 5.8" e-paper COLOR display
Watchy
A fully open source & customizable E-Ink watch
Newt
A low-power, open source, 2.7-inch IoT display powered by an ESP32-S2 module and featuring SHARP's Memory-in-Pixel (MiP) screen technology
Cynthion
A multi-tool for building, analyzing, and hacking USB devices
