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iCESIO - replacement board for CASIO 3208 modules (CA-53, CA-506 watches)

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iceSIO

iceSIO replacement board for CASIO 3208 modules (CA-53, CA-506 watches)

Hardware

  • MCU: Microchip PIC16F19197 - 8bit MCU, 56kB flash, 4K RAM, 256b EEPROM
  • EEPROM: Microchip 24CW1280T-I/CS0668 - 16KB, WLCSP package
  • Accelerometer: NXP MMA8451QT - 3-axis, 14-bit/8-bit digital accelerometer
  • Compass: Honeywell HMC5883L or Isentek IST8310 - 3-Axis Digital Compass
  • Environment: BOSCH BME280 - Digital humidity, pressure and temperature sensor
  • LED:
    • ON Semiconductor NCP5623CMUTBG - Triple Output I2C Controlled RGB LED Driver
    • Songxin SX-0402-RGB - SMD fullcolor RGB SMD0404 LED
  • Battery: CR2016 -> CR2020 / CR2025 / CR2320 upgradable?

Features

  • TTL 19200bps UART for debug and evolution.
  • RTCC for timekeeping.

Pictures

front

back

TODO Features

  • Controls: 2 side buttons + 4*4 keypad
  • Timekeeping: Home and World time with automatic DST and assisted calibration
  • Perpetual calendar: up to year 2199
  • Calculator: Infix, Prefix or Reverse Polish notation (configurable), -9.9999991099 — +9.99999991099 (visual 8 digits mantissa)
  • Alarm: 5 daily alarms + 5 weekly alarms + hour signal
  • Start/Stop watch: 5 stopwatches up to 23:59:59.59 with 0.01 second resolution
  • Timer: 5 countdown timers up to 99:59:59 with 1 second resolution
  • Signal: Ring Tone Text Transfer Language (RTTTL) alarm and timer signals
  • Minute repeater: audibly chimes the hours and minutes.
  • BackLight: full RGB backlight, alarm and timers (configured separately) lights
  • Sun: Sunrise and Sunset (Latitude presets + timezone)
  • Moon: Precise Moon phase (icon and date)
  • Equation of time
  • Accelerometer:
    • tap-sensing control
    • tilt sensor
    • speedometer
    • continuous accelerometer
    • 0-100kmh acceleration/deceleration
  • Compass:
    • Regular compass
    • Angle finder
  • Enviromental sensor:
    • Current temperature (C°/F°)
    • Tranding temperature - hour/12h/24h
    • Current Humidity (%)
    • Tranding humidity - hour/12h/24h
    • Current Barometer (hPA, mBar, at, atm, Torr, mmHg, PSI, inHg)
    • Tranding barometer - hour/12h/24h

Related Projects

goodwatch replacement circuit board for the Casio 3208 module, used in the Casio CA-53W and CA-506 calculator watches.

Pluto is a replacement PCB for the Casio F-91W that is also based on an MSP430.

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iCESIO - replacement board for CASIO 3208 modules (CA-53, CA-506 watches)

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