User:RA2lover/Sandbox/Grow light automation - Revision history

RA2lover: nuked rest of old guide for now, removed equals signs from iccode because escaping them still doesn't fix rendering.

2026-03-12T03:05:01Z

nuked rest of old guide for now, removed equals signs from iccode because escaping them still doesn't fix rendering.

RA2lover: add sunset-sensing ic10 timer variant

2025-11-12T12:30:26Z

add sunset-sensing ic10 timer variant

RA2lover: Add IC10 timer using stack as non-volatile memory

2025-11-11T18:32:44Z

Add IC10 timer using stack as non-volatile memory

RA2lover: reduce line count for ic housing detection

2025-11-11T15:20:30Z

reduce line count for ic housing detection

RA2lover: /* Stopwatch timer */

2025-11-10T13:59:12Z

‎Stopwatch timer

RA2lover: /* Sunset-triggered timer */

2025-11-10T11:54:24Z

‎Sunset-triggered timer

RA2lover: /* Sunset-triggered timer */

2025-11-10T11:36:34Z

‎Sunset-triggered timer

RA2lover at 11:35, 10 November 2025

2025-11-10T11:35:34Z

RA2lover at 18:07, 9 November 2025

2025-11-09T18:07:46Z

RA2lover at 15:44, 9 November 2025

2025-11-09T15:44:11Z

@@ Line 102: / Line 102: @@
 yield #wait until the next tick
 add TimeSinceStartUp TimeSinceStartUp SecondsPerTick #increment time since startup
-mod CurrentCycleTime TimeSinceStartUp SecondsPerDay #T_CurCycle = TotalRuntime % DayLength
+mod CurrentCycleTime TimeSinceStartUp SecondsPerDay #T_CurCycle -> TotalRuntime % DayLength
-sge GrowLightStatus CurrentCycleTime DarknessTimeSeconds # = 1 if CycleTime>=DarknessTime
+sgt GrowLightStatus CurrentCycleTime DarknessTimeSeconds # 1 if CycleTime > DarknessTime
 sb HASH("StructureGrowLight") On GrowLightStatus #batch write to all grow lights
      #optional debug code that lets you see CurrentCycleTime if running on an IC housing
@@ Line 156: / Line 156: @@
 add TimeSinceStartUp TimeSinceStartUp SecondsPerTick #incrementing it
 push TimeSinceStartUp #and saving it back to its address (in this case, $000).
-mod CurrentCycleTime TimeSinceStartUp SecondsPerDay #T_CurCycle = TotalRuntime % DayLength
+mod CurrentCycleTime TimeSinceStartUp SecondsPerDay #T_CurCycle -> TotalRuntime % DayLength
-sge GrowLightStatus CurrentCycleTime DarknessTimeSeconds # = 1 if CycleTime>=DarknessTime
+sgt GrowLightStatus CurrentCycleTime DarknessTimeSeconds # 1 if CycleTime > DarknessTime
 sb HASH("StructureGrowLight") On GrowLightStatus #batch write to all grow lights
      #optional debug code that lets you see CurrentCycleTime if running on an IC housing
@@ Line 198: / Line 198: @@
 l r0 DaylightSensor Vertical
 yield
-sge CurrentSunsetStatus r0 SunsetAngle #r1 = are we in sunset right now?
+sge CurrentSunsetStatus r0 SunsetAngle #r1: are we in sunset right now?
 move sp $1
 pop r0 #get last sunset status, store into r0
@@ Line 219: / Line 219: @@
 l r0 d0 None #throw a LogicTypeIsNone exception
 }}

← Older revision		Revision as of 12:30, 12 November 2025
Line 176:		Line 176:
	<br>The circuit uses a [[Logic Pulse Former]] assembly to create a single-tick pulse when a sunset is detected, which is then used to reset a counter to the darkness timer memory setting.		<br>The circuit uses a [[Logic Pulse Former]] assembly to create a single-tick pulse when a sunset is detected, which is then used to reset a counter to the darkness timer memory setting.
	<br>The darkness timer memory setting is a negative value, exploiting the fact writing any value equal or greater than 1 to a device's "On" setting turns it on. This removes the need for an additional logic compare component.		<br>The darkness timer memory setting is a negative value, exploiting the fact writing any value equal or greater than 1 to a device's "On" setting turns it on. This removes the need for an additional logic compare component.
		+
		+	===IC10 equivalent===
		+	Because instructions within a single IC10 run at a well-defined execution order, this design isn't sensitive to component placement order.
		+	A [[Daylight Sensor]] with cells exposed towards zenith needs to be present in d0.
		+	{{ICCode\|
		+	define ProgramHash HASH("Sunset Sensing Grow Light Timer 0.1")
		+	define DarknessTimeSeconds 300
		+	define SecondsPerTick 0.5
		+	define SunsetAngle 100
		+	alias CurrentSunsetStatus r1
		+	move sp $200#check for guard variable
		+	pop r0
		+	beq r0 ProgramHash start
		+	#As an alternative to clearing the entire stack, we can just clear the values we'll use
		+	poke $0 0 #Sunset status on last check
		+	poke $1 DarknessTimeSeconds #Time since last sunset was detected
		+	poke $1FF ProgramHash
		+	start:
		+	alias DaylightSensor d0 #Aliasing a device also labels its corresponding screw.
		+	bdnvl DaylightSensor Vertical CrashWithoutSensor
		+	l r0 DaylightSensor Vertical
		+	yield
		+	sge CurrentSunsetStatus r0 SunsetAngle #r1 = are we in sunset right now?
		+	move sp $1
		+	pop r0 #get last sunset status, store into r0
		+	push CurrentSunsetStatus #and store current sunset status
		+	brle CurrentSunsetStatus r0 2 #Are we in a sunset while we weren't in one before?
		+	poke $1 0 #If so, We're found one and restart the time since last sunset.
		+	move sp $2
		+	pop r0 #load the saved time,
		+	add r0 r0 SecondsPerTick #increment it,
		+	push r0 #and save it into non-volatile memory.
		+	sgt r1 r0 DarknessTimeSeconds
		+	sb HASH("StructureGrowLight") On r1 #Turn grow lights on if the timer has expired.
		+	bdnvl db LineNumber start
		+	s db Setting r0
		+	j start
		+
		+	CrashWithoutSensor:
		+	alias NoDaylightSensorConfigured d0
		+	sb HASH("StructureGrowLight") On 0 #turn grow lights off as a safety precaution
		+	l r0 d0 None #throw a LogicTypeIsNone exception
		+	}}

@@ Line 106: / Line 106: @@
 sb HASH("StructureGrowLight") On GrowLightStatus #batch write to all grow lights
      #optional debug code that lets you see CurrentCycleTime if running on an IC housing
-     bndvl db LineNumber start #if we can't see our own line number we're not on one
+     bdnvl db LineNumber start #if we can't see our own line number we're not on one
      s db Setting CurrentCycleTime #writes its value to the housing's current state
 j start
@@ Line 118: / Line 118: @@
 In order to reduce component count, this timer uses ticks instead of seconds as a unit of time measurement.
-<!-- rest of old guide for now. will start changing this later. solar angle thing is incorrect outside the moon and even technically incorrect within it, as a starter. -->
+===IC10 Equivalent===
@@ Line 131: / Line 176: @@
 <br>The circuit uses a [[Logic Pulse Former]] assembly to create a single-tick pulse when a sunset is detected, which is then used to reset a counter to the darkness timer memory setting.
 <br>The darkness timer memory setting is a negative value, exploiting the fact writing any value equal or greater than 1 to a device's "On" setting turns it on. This removes the need for an additional logic compare component.
 == Geometry of Daylight Sensors ==

@@ Line 106: / Line 106: @@
 sb HASH("StructureGrowLight") On GrowLightStatus #batch write to all grow lights
      #optional debug code that lets you see CurrentCycleTime if running on an IC housing
-     alias OwnDeviceHash r15
+     bndvl db LineNumber start #if we can't see our own line number we're not on one
-    l OwnDeviceHash db PrefabHash
+     s db Setting CurrentCycleTime #writes its value to the housing's current state
 j start
 }}

@@ Line 91: / Line 91: @@
 With the provided settings, the timer will start with the light turned off for the darkness duration, then turn the light on for the rest of the day length (stored in the memory unit as 1200 seconds or 20 minutes).
 <br>Starting with the grow light off is safer for occasional blackouts as the circuit has no awareness of how long it's been turned off for during a blackout and short blackouts risk stressing plants with excess light.
 === Memory Unit Timer ===

@@ Line 110: / Line 110: @@
 '''This design is not recommended for use because it is sensitive to logic component execution order, which may not persist across world loads.'''
 [[File:Sunset Triggered Timer.png]]
 <br>The darkness timer memory setting is a negative value, exploiting the fact writing any value equal or greater than 1 to a device's "On" setting turns it on. This removes the need for an additional logic compare component.

@@ Line 81: / Line 81: @@
 ==Timing Circuits==
-Circuits which provide adjustable duty cycle grow light operation. No effort is provided for synchronization with daylight, so greenhouses operating off them should [[Composite window shutter]]s to prevent sunlight from denying darkness periods if the timers happen to get out of sync.
+Circuits which provide adjustable duty cycle grow light operation. No effort is provided for synchronization with daylight, so greenhouses operating off them should use [[Composite window shutter]]s to prevent sunlight from denying darkness periods if the timers happen to get out of sync.
 === Stopwatch timer ===
@@ Line 102: / Line 102: @@

@@ Line 83: / Line 83: @@
 Circuits which provide adjustable duty cycle grow light operation. No effort is provided for synchronization with daylight, so greenhouses operating off them should [[Composite window shutter]]s to prevent sunlight from denying darkness periods if the timers happen to get out of sync.
-=== Stopwatch clock ===
+=== Stopwatch timer ===
-A stopwatch is used as a clock source, with day duration being provided by the memory unit and darkness duration being provided by the dial (accessible through [[Kit (Logic Switch)]]). Using separate devices for these roles removes ambiguity without the need for a [[Labeler]], even in arrangements where the memory unit and dial are on the same logic network.
+A stopwatch is used as a clock source, with day duration being provided by the memory unit and darkness duration being provided by the dial (accessible through [[Kit (Logic Switch)]]). Using separate devices for these roles removes ambiguity without the need for a [[Labeller]], even in arrangements where the memory unit and dial are on the same logic network.
-<!-- Figure out how to add image of example logic circuit -->
+[[File:Stopwatch Grow Light Timer.png|An example indoor grow light pulse width modulation circuit.]]
 <!-- rest of old guide for now. will start changing this later. solar angle thing is incorrect outside the moon and even technically incorrect within it, as a starter. -->