Clockstar 2.0

Build and program a Bluetooth smartwatch.

DIY watchBluetoothMotion sensorsCircuitBlocks

Price: $99
Availability: Listed
Design: Schematics

Where to buy · 2 shops

Compare with similar devices

In stock at CircuitMess when checked on 2026-09-24.

Bring along: Kit assembly and CircuitBlocks.
Keep in mind: Confirm the board revision and supported phone software before flashing.

Source checked · Sep 16, 2026

Clockstar 2.0 — Image credit
Maker product image · CircuitMess

(02) Blueprint

What’s published

Schematics published

Schematic PDF and versioned firmware releases are public; no editable PCB source or Gerbers found.

Design files 2

Source 1

CircuitMess/Clockstar-v2-Firmwarefirmware2

git clone https://github.com/CircuitMess/Clockstar-v2-Firmware.git

Key parts 1

ESP32-S3-MINI-1-N4R2 All ESP32-S3 devicesMCUDatasheet

Research notes

Schematic PDF verified 200; Clockstar-v2-Firmware repo (2 stars) has a tagged v1.3 release, no license field, no hardware/KiCad directory found.

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Markdown JSON

Made the Clockstar 2.0? Put the badge on your README; it links here, with every shop that sells it.

Specifications

Build and package

Project: Build a programmable smartwatch; about 1 hour; beginner-friendly, ages 9+
Included: Main board, acrylic case, watch strap, LiPo battery and screws
Assembly tool: Screwdriver included in the 2025 creator booklet

Hardware in the linked v2.4 drawing

Processor: ESP32-S3-MINI-1-N4R2
Display: Drawing labels a 1.44-inch TFT with a 12-pin connection
Battery: 600 mAh LiPo with a two-pin JST 1.25 connection
USB and charging: USB-C and TP4054 charging circuit
Motion and clock: LSM6DS3TR-C motion sensor and BM8563ESA real-time clock
Controls and feedback: Left/right/push lever, separate button, buzzer and RGB LED

Use and programming

Built-in functions: Time, date, alarm and stopwatch; Bluetooth phone connection
Custom projects: CircuitBlocks watch faces, animations, timers, button actions and motion games; coding is optional
Stock recovery: CircuitBlocks Restore Firmware, or the revision-specific prebuilt binary using the repository’s instructions
Source build: Clockstar-v2 repository specifies ESP-IDF 5.1, recursive submodules and its ESP-IDF/LovyanGFX patches
Download reviewed: v1.3 release; notes updated Bluetooth functionality support

What still needs checking

Panel controller/resolution, measured runtime, dimensions, weight and formal water-resistance rating remain unverified.
USB cable inclusion and exact supported phone/OS versions have not been confirmed.
Memory capacities are not independently established here from the module suffix; the full module identifier is retained.

Downloads & docs

Clockstar 2.0 productcircuitmess.com Exact 2.0 guide and downloadscircuitmess.com Clockstar 2.0 creator booklet PDFcdn.shopify.com Clockstar 2.0 schematic PDF, internal v2.4cdn.shopify.com CircuitBlocks online editor — sign-in requiredcode.circuitmess.com Clockstar v2 firmware and build instructionsgithub.com Clockstar v2 firmware v1.3 releasegithub.com

Source & revision notes

Maker listing checked Sep 15, 2026. Detailed documentation reviewed Sep 16, 2026. Not hands-on tested.

Price is a dated listing; confirm with the maker.

The current page confirms a DIY watch kit, Bluetooth, motion sensors and a LiPo battery. It does not establish the archive’s specific processor or display technology.

The exact maker-linked guide and schematic were reviewed on 2026-09-16. Board drawing revisions and firmware compatibility limits are recorded in the detailed profile; listing prices retain their earlier review date.

Capability corrected 2026-09-19: this entry's specifications name Bluetooth, but the Bluetooth capability was not set, so the filter and the comparison table under-reported it.

Independent source review; no assembly, Bluetooth or flashing tests.

The store calls the kit 2.0 and its linked schematic is internally named Clockstar v2.4. The firmware README explicitly separates Clockstar v2 from original Clockstar v1.

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