Arduino® Edge Control
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Arduino® Edge Control
Modified: 17/12/2021
4.6 Board Recovery
All Arduino® boards have a built-in bootloader which allows flashing the board via USB. In case a sketch locks up
the processor and the board is not reachable anymore via USB it is possible to enter bootloader mode by double-
tapping the reset button right after power up.
5 Connector Pinouts
5.1 J1 LCD Connector
Pin
Function
Type
Description
1
PWM
Power
Backlight LED Cathode (PWM control)
2
Power On
Digital
Button input
3
+5V LCD
Power
LCD power supply
4
LCD RS
Digital
LCD RS signal
5
Contrast
Analog
LCD Contrast control
6
LCD RW
Digital
LCD Read/Write signal
7
LED+
Power
Backlight LED Anode
8
LCD EN
Digital
LCD Enable signal
10
LCD D4
Digital
LCD D4 signal
12
LCD D5
Digital
LCD D5 signal
14
LCD D6
Digital
LCD D6 signal
16
LCD D7
Digital
LCD D7 signal
9,11,13,15
GND
Power
Ground
5.2 J3 Wake up signals/External Relay Commands
Pin
Function
Type
Description
1,3,5,7,9
V BAT
Power
Gated voltage battery for wake up signal reference
2,4,6,8,10,12
Input
Digital
Edge sensitive wake up signals
13
Output
Digital
External solid state relay clock signal 1
14
Output
Digital
External solid state relay clock signal 2
17
Bidir
Digital
External solid state relay data signal 1
18
Bidir
Digital
External solid state relay data signal 2
15,16
GND
Power
Ground