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Description: This tutorial will demonstrate how to build an LCD boost and AFR (air fuel ratio) gauge and displaying it on a 20x2 Hitachi LCD screen. An Innovate LC-1 will feed the wideband 0-5v for 8-22afr readings. The boost reading was setup to work with a Honda MAP sensor however any map sensor can be used with some change in the code.
The LCD will display Air fuel ratio with an indicator bar ranging from 8-22afr. The LCD will also display current boost/vacuum and peak boost. There will be 4 buttons to enable the menu, navigate and clear the peak boost.Video Clip of the assembled project working:
- Arduino Uno
- 4 Push buttons
- 4 10k resistor
- 1 10k potentiometer
- 20x2 LCD (Hitachi compatible)
- Misc wires
- Usb cable for the Uno
- Arduino IDE version 1.0.1 to 1.0.4 (tested)
- BMP085 Bosch pressure sensor (for sensing atmosphere if using absolute sensors)
Wire up the project on a breadboard or test board.
More details can be found here: http://paulsvang.com/mylife/how-to-build-a-boost-and-air-fuel-ratio-lcd-gauge/
PSI and AFR 16x2 Gauge
- Brand: TunerWizard
- Product Code: BoostAFRDIY
- Availability: In Stock