Seon Rozenblum, often known as the “Surprising Maker,” has launched a smartwatch equipment powered by the Espressif ESP32-S3 microcontroller and that includes a 240×280 colour touchscreen show: the TinyWATCH S3.
“TinyWATCH S3 [is] an open supply hackable good watch,” Rozenblum explains of his creation. “Its principal function is as hackable good watch/wearable {hardware} product for use for firmware improvement — both the official open supply firmware lead by me, or your personal firmware if you wish to go down that path… or for use only a dev board for code hacking and normal initiatives.”
In the event you’re in search of a jumping-off level for a smartwatch venture, the TinyWATCH S3 can ship. (📷: Surprising Maker)
The guts of the smartwatch, dropped at our consideration by CNX Software program, is a customized board designed by Rozenblum and taking part in host to an Espressif ESP32-S3 system-on-chip, providing two 32-bit Tensilica Xtensa LX7 cores operating at as much as 240MHz, an ultra-low-power RISC-V coprocessor core, single-band Wi-Fi 4, and Bluetooth 5 Low Vitality (BLE) with Bluetooth Mesh help. There’s 512kB of on-board static RAM (SRAM), which Rozenblum has expanded with 2MB of pseudo-static RAM (PSRAM) accessible over a quad-SPI bus, and 8MB of quad-SPI flash storage.
The board sits behind an ST7789-based 240×280 colour show with a capacitive contact layer, whereas additionally driving a variety of peripherals: a real-time clock, as you would possibly count on from a watch, a six-axis inertial measurement unit (IMU), separate magnetometer, MEMS microphone, magnetic buzzer, haptic vibration motor, and a battery gas gauge, plus buttons for energy, reset, and person management.
The watch is bought with board, show, and 3D-printed case — however you will want your personal battery and strap. (📷: Surprising Maker)
Whereas the {hardware} is in its second revision, Rozenblum admits the firmware continues to be very a lot a work-in-progress. “Although TinyWATCH might be worn as a watch,” he warns, “at the same time as your each day driver (battery required), its firmware is early alpha, and never near a ‘shopper watch’ stage that you just would possibly count on if you happen to had been to purchase a ‘completed product.'”
For individuals who aren’t delay by such warnings, the TinyWATCH S3 is now out there to order on the Surprising Maker Store for $59; no battery nor watch strap is included, although a 3D-printed case is provided. {Hardware} design recordsdata and firmware supply code recordsdata are unfold throughout 4 repositories on GitHub, underneath the CERN Open {Hardware} License v1.2 and the GNU Common Public License 3.0 respectively.