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

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.