Mini 7-Segment 4-Digit Real Time Clock

Mini 7-Segment 4-Digit Real Time Clock.


  • Bright 4-digit .28" Red 7-segment display
  • Display Date and time (12hr or 24hr) utilizing high accuracy DS3231
  • Displays temperature (Celsius or Fahrenheit) utilizing DS18B20
  • Select cycle mode between time, date and temperature or steady
  • 24hr reoccurring alarm (one shot, intermittent, continuous or 7 different tunes) with 10 min snooze Alarm
  • Plays Westminster chime on the hour and chimes the hour count (night time quiet mode or may be disabled)
  • External relay output control
  • Real Time Clock (RTC) stores Date and time when powered off
  • Mode and three setup switches
  • Intensity control for 7-segment displays including Night Intensity mode
  • All mode settings stored in non-volatile EEPROM (restored on power-up)
  • Double sided silk-screened and solder masked high quality PCB (3.0" x 2.25")
  • 12V DC adapter operation (not included)
  • PIC16F1938 based project electronic kit
  • Available in kit or fully assembled and tested