Other Functions; Vr1; J2, J3; Led1 - NEC 78K0R/L 3 Sense it! Series User Manual

78K0R/Lx3 – Sense it!

2.6 Other Functions

2.6.1 VR1

This is the volume control for J1.
2.6.2 J1
J1 is the stereo mini-jack for audio output. Audio is output on left side only.

2.6.3 J2, J3

External power supply connectors. For further information refer to the
2.6.4 J4
This is the pad for a battery socket (on the back side of the board). For further information refer to the
"External Power Supply"
2.6.5 J5
J5 is the terminal to connect voltage to be measured. It can apply a voltage 0V-2.0V without using
operational amplifier and 0.02V-0.22V with using operational amplifier.

2.6.6 LED1

LED1 is LED controlled by "P33/INTP3/TI07/TO07". It lights by outputting "Low".

2.6.7 LED2

This is the Power LED. It lights up if power is supplied to the board.

2.6.8 BUZ1

BUZ1 is a piezoelectric buzzer (TDK: PS1240P02BT) controlled by "P32/INTP5/TI01/TO01/PCLBUZ0". It
sounds by outputting about 4 KHz pulse.

2.6.9 Universal area

The kit has the universal area. Users can use this to develop custom circuit.

2.7 LCD Panel

The LCD panel has following specifications.
•
TN liquid crystal
•
1/8DUTY
•
5V Drive
•
8COM x 50SEG = 400 segment
_______________________________________________________________________________________________
chapter.
User's Manual
"External Power Supply"
U20191EE1V0UM00
chapter.
16