Sequential shift light

Summary

The Sequential Shift Light is compact 4.2" x 0.5" display made up of 14 LEDs in a 3 stage array.

LED configuration

• 6 green LEDs comprise the outer segments, wired together
• 6 yellow LEDs comprise the middle segments, wired together
• 2 red LEDs are in the center, wired together

Electrical Connections

• +5v common power
• 3 triggers to activate each color segment

Physical Features

• All surface mount construction for ruggedness and a smooth bottom, ideal for mounting with double stick foam tape.

Wiring

RaceCapture/Pro

Hardware Configuration

Ensure all 3 internal GPIO jumpers on the RaceCapture/Pro board are set to output mode. Refer to the Installation Guide for details.

Software Configuration

• Launch the RaceAnalyzer Software
• Connect RaceCapture/Pro to your computer.
  • In RaceAnalyzer, make sure the COM port is configured to the correct port
• Read the current configuration from RaceCapture/Pro.
• In the RaceCapture/Pro configuration set the GPIO ports to output mode.
• Write the configuration back to RaceCapture/Pro.

Lua Script

The Lua Script defines the logic for reading the sensor inputs and controlling the various outputs.

• In RaceAnalyzer, navigate to the scripting window
• Paste the following code into the window
  • Change the 5000, 6000 and 7000 values to the shift light threshold you prefer.
• Press 'write script' to write the script back to RaceCapture/Pro
• Power-cycle (unplug/replug) RaceCapture/Pro to activate the script.

setTickRate(15)

function onTick() 
	r = getTimerRpm(0) 
	if r > 5000 then setGpio(2,1) else setGpio(2,0) end 
	if r > 6000 then setGpio(1,1) else setGpio(1,0) end 
	if r > 7000 then setGpio(0,1) else setGpio(0,0) end
end

• Tip - you can perform the setup on the bench just using USB power.

Megajolt

Technical information