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GMC GUI

[last updated: 2019-10-24] -----

Concept:

GMC

GMC motorhome 1976

rPi connected to a (go to:) 7" touchscreen, mounted on the dash of my 1976 GMC motorhome.
rPi will hardware connect to:

temperature sensors (outside, roadway {for vapor lock}, inside)
house & engine battery & alternator voltage, acid level, current, and combiner status
barometer/altimeter sensor
water leak detectors
suspension ride heights
road & backup cameras

Software concept:

UI will have multiple screens, allowing viewing of all sensor status,
and control of some systems (cameras, combiner, ride height?)

Status/Operation Procedure:

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Hardware details:

add-on modules/shields

Hardware reference:

pinout

hardware connections

Other signals for wherever:

1 line for one-wire temperature sensors DS18B20(component page)
3 lines for combiner
? lines for camera control
? lines for monitor source control
? lines for suspension control

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Software details:

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Things to do next/eventually

rPi/touchscreen:

power:

12v-to-5v module mounted
USB socket mounted
...

rPi mounted (swing arm?)
daughter board
...

RS485:

software functional to read leak sensors
cable strung from bedroom to cockpit
power module and plug socket in headboard
build remote boards w/ max485 & arduinoNano
...

temperature sensors:

sensors mounted:

engine compartment
behind grill
roadway under gas tank
batteries
cockpit
bedroom

cables strung
plug in to rPi designed
software to accommodate pulled or added sensors
...

combiner:

LED sensor designed
cable strung to rPi
connectors (both ends) designed
...

ADC:

shield built
sense cables strung:

engine & house batteries
alternator
solar amps

connectors into rPi designed
software functional
...

Other sensors:...

barometric/altimeter
CO, LPG sensors
suspension ride-height
battery acid level
...

...

...
...

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Other to make road-ready:

replace odo cable
replace water fill hose
repair sewage tank leak
fix swamp cooler feed leak
fix ceiling sag
finish sealing roof seams
stock all spare parts/modules
stock tools
top storage racks
bend bumper
configure window insulation mounting
bondo awning mounting holes
rainX all windows
finish moving 12v fuse panel
move AC panel
finish patching Pax rear body damage
install new bathroom sink faucet & spout
fix generator
see todo.ods for additional items and details

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eof