ICStation CAI-201 Operation instructions

Installation tutorial of seven color digital clock（CAI-201）
Installation of the circuit
The components are installed from size short to high. Install size short component such as electrical resistor first and then install size high
component. When a part of the components are installed, cut off pin of the component and then install the next part of the component.
There are no positive and negative poles in electrical resistor, light sensitive resistor, thermal resistor, crystal oscillator and ceramic capacitor.
When light sensitive resistor and thermal resistor are installed, height of 1cm should be reserved and bend it.
There are positive and negative poles for buzzer, the location with plus sign on the buzzer should be face with the location with plus sign on
PCB.
After all the installation of the components are finished, and then install the integrated circuit into the tube socket, the gap location of
integrated circuit and tube socket shall be aimed at PCB marked location of the gap.
When triode, tact switch, power socket and battery holder are installed, they should be installed correspondingly according to the shape.
After all the installation of components are finished, check again if there is any mistake in the installation, check if there are phenomena such
as solder skips, cold solder joint and short circuit in the welding spot.
Connect pin header with numerating tube first and then weld numerating tube with PCB.
After making sure that there is no problem with the circuit, and then put the circuit into the shell, fix the shell with screws.
Scan the QR code to watch the video tutorial, graphic tutorial and electronic manual.
http://www.diyleyuan.com/jc/201C.html
About faults
If there is a fault, please first judge whether the components are installed incorrectly, whether there is missing welding, false welding or short
circuit at the welding point. The power supply shall not exceed 5V, otherwise the IC will be damaged. Special note: acid flux cannot be used for
welding, otherwise the time will not run. Please use rosin flux. There is a drive IC inside the digital tube. It cannot be displayed when it is
directly powered on. It needs to receive a complete signal from the control board to display normally. Therefore, the pins must be firmly welded
and cannot be falsely welded. If there is false welding, the display will be missing strokes or random code, uneven brightness and other
phenomena. If the time does not run: check whether it is reset, whether DS1302, crystal oscillator and 22P capacitor are installed incorrectly, and
whether there is false welding.
Electric schematic diagram
S2
S1 GND
+5V
S1
S2
X1
2
X2
3
VCC2
1
GND 4
RST 5
I/O 6
SCLK 7
VCC1
8U2
DS1302
GND
Y1
32768
C1
22P
C2
22P
GND
GND
R1
10K
BT1
3V
IO
RST
SCLK
+5V
GND
P1
4Pin +5V
S1
S2
Rt
RT
Thermistor
RP
Photoresistance
R_P
10K R_T
10K
+5V +5V
GND GND
R-P R-T
1
2
3
VCC
GND
GND
JK1
GND
+5V
C01
0.1uF
+5V
GND
C02
0.1uF
GND
LS1
Buzzer
Q1
8550
+5V
GND
VBAT
Set
Up
USB-5V
R2
10K
+5V
R-B
P1.0/ADC0/CCP1/RxD2
1
P1.1/ADC1/CCP0/TxD2
2
P1.6/ADC6
3
P1.7/ADC7
4
P5.4/RST/MCLKO
5
Vcc
6
P5.5
7
Gnd
8
P3.6/ADC14/INT2 15
P3.7/INT3 16
P3.0/ADC8/RxD/INT4 9
P3.1/ADC9/TxD 10
P3.2/ADC10/INT0 11
P3.3/ADC11/INT1 12
P3.4/ADC12/T0 13
P3.5/ADC13/T2 14
U1 STC8G1K17 DIP16
D0
D1
SDI
CLK
LE
EN
P2
8Pin GND
S2
S1
R-P
R-T
R-B
D0
D1
SDI CLK
LEEN
IO
RST
SCLK
+5V
CR1220

Function settings
Setting
instruction
Press “SET” button and move to next setting. Press “UP” button to change the numerical value of twinkling. If there is no action of pressing button
within fifteen seconds, the setting will quit automatically. Each time the setting is finished, the button will be locked, if there is need for setting again,
“SET” Or“UP” button shall be pressed for three seconds.
Reset
At the same time , press “SET” and “UP”button for more than three seconds, release the button after all of
the numerical tubes show light and sound, display 7: 59, ten seconds later, it becomes 8:00 and gives out
sound. Reset is successful.
setting time：Press and hold the UPbutton, when 24H appears and flashes, then release it. The UP key is to modify, and the SET key is to enter the next step.
Set year
display year, the numerical tube is twinkling at the same time,Press “UP” button and change year. (setting
errors can be reset again)
Indicates 2021
Set date
Press “SET” button, the numerical tube of month is twinkling ,Press “UP” button and change month, Press
“SET” button , the numerical tube of day is twinkling, Press “UP” button and change day. After the year,
month and day are set correctly, the week will be automatically set.
Indicates January 1
Set time
Press “SET” button, the numerical tube of hour is twinkling ,Press “UP” button and change hour, Press
“SET” button again , the numerical tube of minute is twinkling, Press “UP” button and change minute.
Other function settings：Press and hold the UP key and release it after 24H flashes.After entering, the UP key is to modify, and the SET key is to enter the next step.
Set time display
mode
Release and then press the UPbutton to switch between 24-hour and 12-hour format (PM will be displayed in
the afternoon when using 12-hour format)
Set hourly
alarm time area
Press “SET” button, it displays 7-21 and remind the hour from 7am to 9 pm. When 7 is twinkling, press UP
and change 7.press “SET” again, When 21 is twinkling, press UP and change21.。Change the same value to
7-7, it will turn off the hourly alarm.
Set first round
alarm clock
Press “SET” button, it will display ON:A1 shows that the first round alarm clock is opened, press UP button,
it will display - -: A1 represents that the first round alarm clock is shut down.
Press “SET” button, enter the time setting of the first round of alarm clock, hour twinkling, press UP and
change hour, press SET then minute twinkles, press UP change minute.
Set second
round alarm
clock
Press “SET” button, it will display - -: A2, it shows that the second round of alarm clock is shut down, press
UP button, it displays ON:A2 shows that the second round alarm clock is opened.
Press “SET” button, enter the time setting of the second round of alarm clock, hour twinkling, press UP and
change hour, press SET then minute twinkles, press UPchange minute.
Set third round
alarm clock
Press “SET” button, it will display - -: A3, it shows that third round of alarm clock is shut down, press UP
button, it displays ON: A3 shows that the third round alarm clock is opened.
Press “SET” button, enter the time setting of the third round of alarm clock, hour twinkling, press UP and
change hour, press SET then minute twinkles, press UPchange minute.
Alarm clock
settings on
weekdays
Press “SET” button, it will display - -：E, it shows the alarm clock is shut down on weekdays, the alarm clock
in on from Monday to Sunday. Press UP change the display:ON:E, which shows that alarm clock is on from
Monday to Friday, no alarm clock on Saturday and Sunday.
Auto brightness
pattern
Press “SET” button, it displays oN-L, which shows the auto brightness is opened, the brightness at night will
automatically change lower. Press UP button and change display - - -L, which show the auto brightness is
shut down, always keeps the same brightness.
Set brightness
Press “SET” button, it displays L-3, which shows high brightness, press UP and change to L-1(lower
brightness) and L-2(medium brightness). (This option can’t be set if it is automatic brightness).
Set temperature
Press “SET” button, it displays the current temperature. Press UP button and fine tuning the temperature.
Temperature
display mode
Press “SET” button, it displays ℃, press UPbutton and it changes to ℉.
Color display
mode
Fixed colors do
not have this
setting
Press “SET” button, it displays dC-1, press UP and it changes to the other three modes.
dC-1: Single numerical tube will change color at random.
dC-2: The color of the digital tube is optional, press the SET key to display the date, and then press UP to
change the date color. Press the SET key to display the time, and then press UP to change the time color.
Press SET to display the temperature, and then press UP to change the temperature color. Press the SET key
to display the week, and then press UP to change the week color.
dC-3：choose the color of each numerical tube individually, press SET and four digits will be displayed, press
UP and adjust the color, and then press SET button and switch to the next number color, press UP button
and adjust the next number color.
Music setting
Press SET button, it displays dU-1, music of “For Elise”, press UP and change to dU-2 music of “Ode to joy”
and dU-3 Spanish bullfighter music.
Time correction
Press SET button, it display de-0, 0 means no correction, press the UP button to set how many seconds to
increase or decrease automatically every day. Set the correction by observing a period of time and grasping
the daily time error.
Display mode
setting
Press SET button, it displays dP-4, which shows time-temperature-date-week circulating to display, press UP
button and it can change.
Press the SET button to exit, the setting is completed