AI SummaryCustom Watchy v2.0 smartwatch firmware booster providing setup instructions and hardware-specific guidance for ESP32-based e-paper watch development. Ideal for embedded systems developers building custom watch interfaces.
Install
Copy this and paste it into Claude Code, Cursor, or any AI assistant:
I want to add the "watchytimelessp — Copilot Instructions" prompt rules to my project. Repository: https://github.com/TimelessP/watchytimelessp Please read the repo to find the rules/prompt file, then: 1. Download it to the correct location (.cursorrules, .windsurfrules, .github/prompts/, or project root — based on the file type) 2. If there's an existing rules file, merge the new rules in rather than overwriting 3. Confirm what was added
Description
Custom watchface firmware for Watchy v2.0 with dark mode toggle, accurate battery monitoring, step counting, and debug diagnostics
Project Overview
This is a custom watchface firmware for Watchy v2.0, an ESP32-based e-paper smartwatch. The project is named "TimelessP" and displays time, date, steps, weather, and battery status on a 200x200 e-paper display with multiple screens and toggleable dark mode.
Technology Stack
• Hardware: Watchy v2.0 (ESP32-PICO-D4, PCF8563 RTC, BMA423 accelerometer) • Build System: PlatformIO (NOT Arduino IDE - see critical note below) • Framework: Arduino for ESP32 • Platform: espressif32 @ ~6.6.0 • Libraries: Watchy v1.4.14, WiFiManager v2.0.11-beta • Language: C++ (Arduino framework)
⚠️ ALWAYS Use Pin 34 for Battery ADC
The most critical issue with Watchy v2.0 development: • Correct Pin: 34 • Wrong Pin: 33 (library default may be incorrect) • Symptom: Battery reads 0.28V instead of 3.7-4.2V if using wrong pin When reading battery voltage, ALWAYS hardcode: `cpp const uint8_t CORRECT_BATT_PIN = 34; pinMode(CORRECT_BATT_PIN, INPUT); analogReadResolution(12); analogSetPinAttenuation(CORRECT_BATT_PIN, ADC_11db); `
Board Revision Detection
`cpp getBoardRevision() // Returns 20 for v2.0 `
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Works With
Any AI assistant that accepts custom rules or system prompts