STEVAL-ILL029V2 STMicroelectronics, STEVAL-ILL029V2 Datasheet - Page 17

• Manufacturer Part Number: STEVAL-ILL029V2
• Description: BOARD & REF DESIGN
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of STEVAL-ILL029V2

• Main Purpose: Touch Interface, LED Driver
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: STLED325, STM8S, STMPE24M31
• Primary Attributes: 4 Digit 7-Segment LEDs, 8 Discrete LEDs, 8 Touch Pads, 8-Channel Touch Wheel
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

UM1058
5
5.1
5.2
5.3
5.3.1
5.3.2
System features (touch interface not connected)
Brightness adjustment through potentiometer
The system is also provided with a potentiometer “BRGHT_ADJ” (R5) which can be used to
vary the brightness of the LEDs by setting the output current. The brightness increases
when the potentiometer is rotated clockwise and decreases with anticlockwise rotation.
Channel number - brightness level display mode
In this mode the system displays the channel number (on the leftmost two 7-segment
display modules) and brightness level on the rightmost two displays. Channel number and
brightness can be increased/decreased using the front panel keys provided on the board
(CH+, CH-, BRGHT+, BRGHT-).
A similar operation can be performed using remote control keys as explained in
Maximum and minimum limits for channel number are 99 and 00 while the maximum and
minimum values for brightness level are 16 and 1 (16/16, 1/16).
Brightness level is also shown by number of discrete LEDs glowing. (1 LED each for 2
levels).
RTC operation
STLED325 also features an inbuilt RTC. The MENU key on the front panel is provided to
select RTC set/view options. Various front panel keys can be used to operate the real time
clock.
Choose MENU to enter into menu options and navigate through them. Choose MENU once
- “rtc' is displayed. Now press OK to enter into RTC options. Now, using the MENU key the
user can navigate through:
“TIME” (view time), “DATE” (view date), “SETT”(set time), “SETD”(set date), “SETA”(set
alarm).
Display time
Choose MENU to go to “rtc” and then OK. “tIME” is displayed. Now press OK again to go to
view time. “HH.MM” is displayed for a second to signify time display in Hours-Minutes
format, followed by current RTC time display with hours and minutes separated by a “.”.
Choose OK again to exit to the channel-brightness display.
Display date
Choose MENU and then OK. Now use the MENU key again to reach “dAtE” and press OK
key. “DD.MM” is displayed for a second to signify date display in date-month format, after
which the current RTC date is displayed. Date and month data are separated by a “.”.
Choose OK again to exit to the channel-brightness display.
Doc ID 010039 Rev 1
System features (touch interface not connected)
Section
17/34
5.5.