Gikfun CAI201 Colorful Digital LED Electronic Alarm Clock Installation Guide
- May 15, 2024
- Gikfun
Table of Contents
Gikfun CAI201 Colorful Digital LED Electronic Alarm Clock
Product Specifications:
- Model: CAI201 Digital Clock
- Display: Digital
- Time Format: 12-hour/24-hour
- Alarm Function: Yes
- Brightness Control: Auto-adjustable
Product Usage Instructions
Circuit Installation:
- Install the components in order from short to tall.
- First, install shorter components like resistors, then move on to taller components.
- After each component is installed, cut off the pins before proceeding to the next component.
Function Setting:
Setup Instructions:
- Press the SET button to enter the next setting.
- Use the UP button to change the flashing numerical value.
- If no button is pressed within 15 seconds, the setting will exit automatically.
- Each button press will lock after completing the setting.
- To set again, press and hold the SET button to enter again.
Reset:
Press and hold the SET button and UP button simultaneously for more than 3 seconds to reset the clock.
Setting Time:
- Press and hold the SET button until the year starts flashing, then release it.
- Use the UP button to modify the values and the SET button to move to the next step.
Frequently Asked Questions
Q: How do I change the time format from 12-hour to 24-hour mode?
A: Press and hold the UP button until 24H starts flashing, then release it. Use the UP button to switch between 24-hour and 12-hour modes.
Q: How do I set alarms on the digital clock?
A: To set alarms, press the SET button and navigate to ‘Setting Alarm 1’, ‘Setting Alarm 2’, or ‘Setting Alarm 3’ as per your preference.
Circuit installation
- Install the components in order from short to tall, first install the shorter components such as resistors, then install the taller components. After each part of the components is installed, cut off the pins of the components before installing the next part of the components.
- Photocells, thermistors, resistors, oscillators, and ceramic capacitors do not have positive or negative terminals. When installing photocells and thermistors, leave a height of 1cm and then bend them.
- The buzzer has positive and negative poles. Install the buzzer with the + symbol facing the + symbol on the circuitboard.
- For integrated circuits, install the socket first. After all components are installed, insert the integrated circuit into the socket, aligning the notch position of the integrated circuit with the notch mark position on the circuit board.
- When installing transistors, install them according to their shape.
- Install tactile switches, power sockets, and battery contacts according to their shape.
- After all components are installed, double-check for installation errors and check for soldering issues such as missed,loose, or shorted joints.
- Before installing the digital tubes on the circuit board, first solder the pins to the digital tubes.
- After verifying that the circuit is working properly, place it into the casing and secure the casing with screws.
About faults
If there is a malfunction, please first check whether the component is installed incorrectly, whether there are missing solder joints, cold solder joints, or short circuits. The power supply cannot exceed 5V, otherwise the chip will burn out. Please note that acidic flux cannot be used for welding, otherwise it will not work properly. Please use rosin flux. The digital tube contains a driver IC, and it cannot display directly when powered on. It needs to receive the complete signal from the control board to display normally, so the pin header must be well soldered and not cold soldered. If it still doesn’t work properly, check whether it has been reset, whether the DS1302, crystal oscillator, and 22p capacitor are installed incorrectly or have cold solder joints.
Function setting
Setup Instructions
| “Press the SET button to enter the next setting. Press the UP button to
change the flashing numerical value. If no button is pressed within 15
seconds, the setting will exit automatically. Each button press will lock
after completing the setting, and if you need to set again, you need to press
and hold the SET button to enter again.”
---|---
Reset
| Press and hold the SET button and UP button simultaneously for more than 3 seconds, all the digital tubes will light up and make a sound, then release the buttons. The display will then show 7:59, and 10 seconds later it will change to 8:00 and make a sound. The reset is successful.| ****
Setting time: Press and hold the SET button until 2021 starts flashing, then release it. Once entered, the UP button is used to modify the value and the SET button is used to move to the next step.
Setting year| Display the year with 21 flashing, press UP to change the year.
(If set incorrectly, you can reset it)| Indicates 2021
Setting date| Press the SET button, the month display will flash, press UP to
change the month. Then press the SET button again, the day display will flash,
press UP to change the day.| Indicates
January 1st
Setting time
| Press the SET button, the hour display will flash, press UP to change the hour. Then press the SET button again, the minute display will flash, press UP to change the minute. (When you enter or exit by pressing the SET button, the seconds will start at 00.)| 8:00 AM PM
indicates afternoon.
Other function settings: Press and hold the UP button until 24H starts flashing, then release it. Once entered, the UP button is used to modify the value and the SET button is used to move to the next step.
Setting time display mode
| ****
After releasing the button, press the UP button again to switch between 24-hour mode and 12-hour mode (when using 12-hour mode, “PM” will be displayed in the afternoon).
| ****
To set the hourly chime time range:
| ****
Press the SET button to display “7-21”, indicating hourly chime reminders from 7am to 9pm. The “7” segment will flash, press UP to change it to the desired starting hour. Then press the SET button again, the “21” segment will flash, press UP to change it to the desired ending hour. If both values are the same, such as “7-7”, then the hourly chime function will be turned off.
| ****
---|---|---
Setting alarm 1
| Press the SET button, “ON:A1” will be displayed, indicating that the first
alarm is turned on. Press the UP button, “- -:A1” will be displayed,
indicating that the first alarm is turned off.| ****
Press the SET button to enter the setting for the first alarm time. The hour
digit will flash. Press the UP button to adjust the hour. Press the SET button
and the minute digit will flash. Press the UP button to adjust the minute.|
Setting alarm 2
| Press the SET button, “- -:A2” will be displayed, indicating that the second
alarm is turned off. Press the UP button, “ON:A2” will be displayed,
indicating that the second alarm is turned on.| ****
Press the SET button to enter the setting for the second alarm time. The hour
digit will flash. Press the UP button to adjust the hour. Press the SET button
and the minute digit will flash. Press the UP button to adjust the minute.|
Setting alarm 3
| Press the SET button to display “- -: A3”, indicating that the third alarm
is turned off. Press the UP button to display “ON: A3”, indicating that the
third alarm is turned on.|
Press the SET key, enter the setting of the third alarm clock time, the hour
will blink, use the UP key to modify the hour, then press the SET key, the
minute will blink, use the UP key to modify the minute.|
Workday alarm settings.
| Press the SET button, the display will show –:E, which means the weekday alarm is off. To set the alarm for weekdays, press the UP button to change the display to ON:E. This means the alarm will be active from Monday to Friday, and inactive on Saturday and Sunday.| ****
Auto brightness mode.| Press the SET button, “oN-L” will be displayed,
indicating that the automatic brightness is turned on, and the brightness will
automatically decrease at night. Press the UP button to change the display to
“—L”, indicating that the automatic brightness is turned off and the
brightness is kept constant.|
Adjusting Brightness| Press the SET button, the display shows L-3, indicating
high brightness. Press UP to change it to L-1 for low brightness or L-2 for
medium brightness. (If it is set to automatic brightness, this option cannot
be adjusted.)|
Set temperature| When you press the SET button, the current temperature is
displayed. You can use the UP button to adjust the temperature.|
Temperatur e display mode|
Press the SET button, and the display shows ℃. Press the UP button to switch to ℉.
| ****
Color Display Mode Monochro me ones do not have this setting.
| Press the SET button to display dC-1. Press UP to switch to the other three
modes.|
dC-1: The color of the digital tube changes randomly.|
dC-2: The color of the four digital tubes can be chosen by yourself. Press SET
to display the date. Press UP to change the color of the date. Press SET again
to display the time. Press UP to change the color of the time. Press SET again
to display the temperature. Press UP to change the color of the temperature.
Press SET again to display the day of the week. Press UP to change the color
of the day of the week.|
dC-3: The color of each digital tube can be individually chosen. Press SET to
display four numbers. Press UP to adjust the color of the numbers. Press SET
again to switch to the color of the next number. Press UP to adjust the color
of the next number.|
Sound Settings| Press the SET button to display dU-1, which is Alice’s Love.
Press UP to change it to dU-2 Joyful Song or dU-3 Spanish Bullfighter.|
Time Correction or Time Calibration
| ****
Press the SET button to display de-0, where 0 indicates no correction. Press UP to set how many seconds to automatically add or subtract each day. Observe the time deviation for a period of time and adjust the correction accordingly.
| ****
Display Mode Settings
| Press the SET button to display dP-4, which means the cycle display of time, temperature, date, and day of the week. Press UP to change it.
dP-1: Display time only.
dP-2: Cycle display of time and temperature.
dP-3: Cycle display of time, date, and day of the week.
| ****
| Press the SET button to exit and complete the settings.|