Casio F-91W watch converted into a smartwatch

Digital fans considering upgrading a basic Casio wristwatch, reworking it right into a hackable, programmable smartwatch could also be within the Sensor Watch object over on the Crowd Provide web site after initially elevating over $45,000 because of over 700 backers the distinctive smartwatch undertaking is now accessible to preorder with costs ranging from simply $36.

Casio smartwatch

“Sensor Watch is a bridge between eras. It takes an iconic 30-year-old design from a golden age of digital watches, and pairs it with a contemporary, highly effective microcontroller and state-of-the-art sensing capabilities. This small circuit board, lower than an inch in diameter, replaces the unique quartz motion in a Casio F-91W watch to place the capabilities of an ultra-low-power ARM Cortex M0+ microcontroller in your wrist.”

“Sensor Watch shouldn’t be like most sensible watches. It makes a special set of engineering tradeoffs, to attain a special set of objectives:

As a substitute of a high-resolution TFT LCD, Sensor Watch repurposes the Casio F-91W’s monochrome phase LCD. This provides it an always-on show that consumes mere microamperes of energy.
By avoiding energy hungry options like Wi-Fi and Bluetooth, Sensor Watch can run for a 12 months or extra on a single 100 mAh coin cell, eliminating the necessity for frequent recharging.
The shortage of an exterior charging port, coupled with reuse of the F-91W’s famously water-resistant enclosure, makes this a hackable wristwatch that may deal with depths as much as 30 meters.”

“There are others (stopwatch, pulsometer, battery voltage), however the essential factor isn’t the apps that include Sensor Watch. The essential factor is that Sensor Watch is open supply and simply hackable, which suggests you’ll be able to write the apps that make sense for YOU. Would you like an astronomy face that may present you moon section and predict satellite tv for pc passes? A transit face programmed with prepare arrivals in your nearest subway station? An astrology face that may let you know if Mercury is in retrograde? These are all apps that you might write for Sensor Watch.”

Specs

ARM Cortex M0+ microcontroller operating at as much as 32 MHz
256 KB of on-chip Flash, with as much as 16 KB EEPROM emulation space
32 KB of RAM with full retention in low-power standby mode
32.768 kHz crystal for real-time clock performance with alarm help
Purple & inexperienced PWM’ready LED backlight (pink & blue on limited-edition boards)
On-board USB Micro B connector
Reset button with double-tap UF2 bootloader
9-pin flex PCB connector for sensor boards
Controller for ten digit phase LCD, plus 5 indicator segments
Edge-plated contacts for 3 interrupt-capable buttons
Connection pad for piezo buzzer (requires mild soldering)
Open Supply