Joey Castillo of Oddly Specific Objects has released a follow-up to the Sensor Watch, aptly named Sensor Watch Pro. The Sensor Watch Pro remains a board swap for the classic Casio F-91W or A158W digital watch that replaces the original quartz movement with the low-power ARM Cortex-M0+ microcontroller.
The Sensor Watch Pro retains features from the Sensor Watch Lite and comes with a few upgrades such as a louder piezo buzzer, an RGB LED, an infrared light sensor, and a completely soldering-free experience. The new watch integrates a custom-fabricated metal spring connector that previously had to be manually soldered after purchase. We had also looked at other hackable watches in the past, such as Bangle.js, Bangle.js 2, and Watchy.
Buyers can opt for a custom LCD that extends the number of segments available from 72 segments to 92 segments. It comes with an onboard temperature sensor and can be connected to a MEMS accelerometer sensor board for more points of interaction.
While the Sensor Watch Pro is similar to a smartwatch in several ways, it cannot be classified as one due to its simple display and inability to sync with a smartphone. However, it runs a custom, community-developed firmware called Movement that supports dozens of watch faces, including Day/Night Percentage, Interval Timer, Menstrual Cycle, Wordle, Tarot, and Simple Calculator. It is fully open-source, with 3D models, Gerber files, and firmware hosted on GitHub. There is an online firmware builder that allows you to combine the watch faces you want in a UF2 file.
The Sensor Watch Pro crowdfunding campaign is live on Crowd Supply with a funding goal of $35,000. A single board is priced at $75, with a shipping fee of $8 within the US and $18 to the rest of the world. The package includes the custom, 92-segment LCD and LIS2DW accelerometer board.
Source: https://www.cnx-software.com/2024/10/01/sensor-watch-pro-turns-the-casio-f-91w-into-a-modular-arm-cortex-m0-based-digital-smartwatch/
