Timer that can be programmed in seconds

J

Jjrmh83

Member
Looking for a timer that can be programmed to come on for like 10-20 seconds. All the timers I have and can find can only be programmed to come on for a minute minimum.

Doing multifeed in coco, 1 gallon smart pots, was doing 5 feeds a day, just bumped it up to 6.

Currently have a 13 gallon reservoir with a 400 gph pump, comes on every 3 hours now for 1 minute.

Just looking for more control, like 20 seconds every hour or something just to try it out. Plants are doing well, just looking to keep the coco moist without having a shitload of run off, maybe do 1 bigger feeding for runoff once a day or 2.
 
Airwalker16

Airwalker16

Well-Known Member
Brand I've used and been happy with is NearPow. The models with either Blue or Orange buttons. Not the square grey ones, I haven't had experience with that kind.

Also there's the Century brand analog timer that utilizes knobs instead of being digitally programmed. I kinda think-tank that's cool, but the digital was cheaper and works fine.
When you search, try using "Deep Cycle Timer" to get what you're looking for.
 
DrKiz

DrKiz

Well-Known Member
Airwalker16 said:
Brand I've used and been happy with is NearPow. The models with either Blue or Orange buttons. Not the square grey ones, I haven't had experience with that kind.

Also there's the Century brand analog timer that utilizes knobs instead of being digitally programmed. I kinda think-tank that's cool, but the digital was cheaper and works fine.
When you search, try using "Deep Cycle Timer" to get what you're looking for.
Click to expand...
Does the nearpow allow you to do 3-6 cycles of day 1.5 minutes at a time?

From reading the description it seems to only allow maximum three cycles.

Really would like to find something in the 3-6 cycle range where you can tune to the second preferably.

Thank in advance!
 
TintEastwood

TintEastwood

Well-Known Member
DrKiz said:
Does the nearpow allow you to do 3-6 cycles of day 1.5 minutes at a time?

From reading the description it seems to only allow maximum three cycles.

Really would like to find something in the 3-6 cycle range where you can tune to the second preferably.

Thank in advance!
Click to expand...
My nearpow will allow up to 19 on/off intervals per day. As short as 1 second per interval.

'IMPROVE ACCURACY TO DAY & SECONDS: Clock setting; Daily Timing including 19-group settings per day"
 
DrKiz

DrKiz

Well-Known Member
TintEastwood said:
My nearpow will allow up to 19 on/off intervals per day. As short as 1 second per interval.

'IMPROVE ACCURACY TO DAY & SECONDS: Clock setting; Daily Timing including 19-group settings per day"
Click to expand...

Thanks bro, found it. Going coco dtw after reading a 134 page thread at Icmag.

Was going to build a rdwc but the coco dtw seems like the system for me.
 
etruthfx

etruthfx

Well-Known Member
Use Raspberry Pi with a IOT powered relay and some simple python code, complete control by the milliseconds, also have mine hooked up to a co2 sensor to trigger the relay for 300 seconds automatically during the daytime.
 
etruthfx

etruthfx

Well-Known Member
spek9 said:
I've got a Titan Apollo 12 cycle timer for things such as this. On time is 5 seconds to 30 minutes, and off times between 5 seconds and 60 minutes.
Click to expand...
This is a good solution but python with rpi allows time.sleep(1) for 1 second timing. Cost about 70 bucks for the Rpi and Relay.
Before my current setup I used timers similar to this but I prefer my current setup much more.
1580595695796.png
 
S

spek9

Well-Known Member
etruthfx said:
This is a good solution but python with rpi allows time.sleep(1) for 1 second timing. Cost about 70 bucks for the Rpi and Relay.
Before my current setup I used timers similar to this but I prefer my current setup much more.
View attachment 4469585
Click to expand...
I agree a Pi will work, and I am all for DIY. I automate the most of my grow with automation (I was using a Pi, but found that Arduino/ESP microcontrollers far more accurate for timing), but purchasing, connecting and programming a custom solution takes time and knowledge. You're also dealing with mains voltage openly (the relay), so experience in ensuring electrical safety is paramount as well. If doing custom mains voltage electrical work and it isn't done to code, it's very likely insurance will not cover any fire damage or electrocution injury.

A cycle timer is purpose built, very easy to use and is extremely accurate (and is electrically certified). They are not prone to freezing or crashing like a Pi is (it is just a single board computer after all), and a crash of any sort in a grow environment can lead to disaster. I'd recommend a custom designed approach only to people who understand the complexities of such solutions, with some experience behind them.
 
etruthfx

etruthfx

Well-Known Member
spek9 said:
I agree a Pi will work, and I am all for DIY. I automate the most of my grow with automation (I was using a Pi, but found that Arduino/ESP microcontrollers far more accurate for timing), but purchasing, connecting and programming a custom solution takes time and knowledge. You're also dealing with mains voltage openly (the relay), so experience in ensuring electrical safety is paramount as well. If doing custom mains voltage electrical work and it isn't done to code, it's very likely insurance will not cover any fire damage or electrocution injury.

A cycle timer is purpose built, very easy to use and is extremely accurate (and is electrically certified). They are not prone to freezing or crashing like a Pi is (it is just a single board computer after all), and a crash of any sort in a grow environment can lead to disaster. I'd recommend a custom designed approach only to people who understand the complexities of such solutions, with some experience behind them.
Click to expand...
100% I agree with all of this. I have attached pictures of my prototype design, it's kinda cool. Put alot of work into building and programming it.
It uses a high quality Cozir co2 sensor, Iot Relay, touchscreen and uses team viewer to be easily controlled by the laptop. I just like that it's customizable I could add cameras or watering systems or self tuning nutrient reservoirs, precise timing, and fan/humidity control.
83920807_2744843025595053_2911585791979290624_n.jpg83800331_222140565612435_7183283002414202880_n.jpg
 
S

spek9

Well-Known Member
etruthfx said:
100% I agree with all of this. I have attached pictures of my prototype design, it's kinda cool. Put alot of work into building and programming it.
It uses a high quality Cozir co2 sensor, Iot Relay, touchscreen and uses team viewer to be easily controlled by the laptop. I just like that it's customizable I could add cameras or watering systems or self tuning nutrient reservoirs, and precise timing.
View attachment 4469589View attachment 4469590
Click to expand...
There's a thread going on in another forum here I think you'd enjoy, and it'd allow us to return this thread back to the OP ;)

Get your Geek on and control your grow room with Arduino!

Fourteen months ago, I got a Raspberry Pi (3 b+) and I started on a quest to automate my grow. It was an idea that began as a discussion with a small group of friends at the now defunct Cannabis Culture forum. Topics ranged from the usual temperature and humidity blah blah, to a robotic hand...
rollitup.org
 
etruthfx

etruthfx

Well-Known Member
spek9 said:
There's a thread going on in another forum here I think you'd enjoy, and it'd allow us to return this thread back to the OP ;)

Get your Geek on and control your grow room with Arduino!

Fourteen months ago, I got a Raspberry Pi (3 b+) and I started on a quest to automate my grow. It was an idea that began as a discussion with a small group of friends at the now defunct Cannabis Culture forum. Topics ranged from the usual temperature and humidity blah blah, to a robotic hand...
rollitup.org
Click to expand...
Thank you
 
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