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Firmware for the Wideband Fuel Mixture Display (WFMD) [0510423A.HEX]
The firmware for the WFMD including the .hex file and source code, plus the source code for the Android app (also available via the Google Play Store)
Update 28/6/2023: a second ZIP file has been added that includes the apk file.
Update 1/9/2023: the ZIP file has been updated for the latest API (version 103).
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Wideband Fuel Mixture Display PCB [05104231]
The PCB for the WFMD.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
103.5 x 63.5mm.
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PIC16F18877-E/PT programmed for the Wideband Fuel Mixture Display (WFMD) [0510423A.HEX]
An 8-bit PIC microcontroller in 44-pin TQFP programmed for the WFMD (0510423A.HEX).
Note that this microcontroller is also available as part of the WFMD kit.
We supply the extended temperature grade chip (-E/P rather than -I/P) as this makes it more robust if installed in a hot area.
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Wideband Fuel Mixture Display PCB pattern (PDF download) [05104231]
A PDF with the PCB pattern for the WFMD. Both layers are in a single PDF.
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Wideband Fuel Mixture Display short-form kit
A set of parts for the WFMD, which includes the PCB and all the onboard parts. You will need to purchase the O2 sensor, connectors, case, wiring, pressure sensor and some other bits and pieces separately.
Click the link immediately below to see a full list of all parts included in the kit. Note: photo shows assembled PCB with wiring in place.
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