Sequential shift light: Difference between revisions
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[[Image:ShiftX_board.png]] | [[Image:ShiftX_board.png]] | ||
The Sequential Shift Light is compact 4.2" x 0.5" display made up of 14 LEDs in a 3 stage array. | The Sequential Shift Light is a compact 4.2" x 0.5" display made up of 14 LEDs in a 3 stage array. | ||
==LED configuration== | ==LED configuration== | ||
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* 6 yellow LEDs comprise the middle segments, wired together | * 6 yellow LEDs comprise the middle segments, wired together | ||
* 2 red LEDs are in the center, wired together | * 2 red LEDs are in the center, wired together | ||
==Physical Features== | |||
* All surface mount construction for ruggedness and a smooth bottom, ideal for mounting with double stick foam tape. | |||
==Electrical Connections== | ==Electrical Connections== | ||
* +5v common power | * +5v common power | ||
* 3 triggers to activate each color segment | * 3 triggers to activate each color segment | ||
=Wiring= | =Wiring= |
Revision as of 15:57, 10 February 2014
Summary
The Sequential Shift Light is a 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
Physical Features
- All surface mount construction for ruggedness and a smooth bottom, ideal for mounting with double stick foam tape.
Electrical Connections
- +5v common power
- 3 triggers to activate each color segment
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.
- Connect the Green, Yellow and Red connections from the Sequential Shift light board to GPIO 1,2,3 respectively.
- Connect the V connection to either:
- The +5v voltage reference
- A separate 5V power supply
- 12v with an extra current limiting resistor you supply. (See Diagram)
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
These instructions apply to all versions of the Megajolt system.
Hardware connections
- Connect the Sequential Shift Light board as follows:
- Green to PGM3
- Yellow to PGM4
- Red to Shift Light output
- Voltage supply (V) to either
- The +5v voltage reference output
- A separate 5V power supply
- 12v with an extra current limiting resistor you supply. (See Diagram)
Software Configuration
- Launch the Megajolt Configuration Software and read the configuration from the controller
- In the user output screen, set the indicator points you want for the Green, Yellow and Red connections.
- Write the configuration back to the Megajolt controller.