7-Segment Display Module

7-segment display module

This is the classic display add-on for the GoGo Board. It can display numbers and text (that a 7-segment can show) up to 4 digits. 

Logo Commands

show "abcd Shows a 4-letter text on the screen. Note that there is only one quote at the beginning of the text. Characters that cannot be displayed include 'k','m','q','v','w','x','z'.
show number shows a number on the display
cls clears the screen*

*may not be implemented on some older versions. Need to update the display firmware.

Program Example

; this program shows the string "hi" if sensor1 is less
; than 100 (i.e. a button being pressed) and will show "bye" otherwise.
to showDisplay
forever [
ifelse sensor1 < 100 [ show "hi ] [ show "bye ]
wait 10
]
end

Viewing GoGo Boad Sensor Values

By pressing the button on the screen, you will cycle through the different screens the module offers. Here is the sequence of these screens together with the label.

USER The default page. This will show whatever is sent be the "show" command.
OFF Turns off the display. You will see a small dot on the right of the screen.
SS 1 Show the value of sensor port 1
SS 2 Show the value of sensor port 2
SS 3 Show the value of sensor port 3
SS 4 Show the value of sensor port 4
SS 5 Show the value of sensor port 5
SS 6 Show the value of sensor port 6
SS 7 Show the value of sensor port 7
SS 8 Show the value of sensor port 8

Download the Tech Files

Current version is 1.2

displayPCB1.2.zip The Eagle CAD source file of the PCB
displayGerber1.2.zip The manufacturing files
displayPCB1.2.PDF A PDF version of the PCB layers
Bill of Materials A list of the needed components

Download the Firmware

display2.0.1.hex The current stable version

Technical Information