Just wanted to thank you for keeping the website up and running! I will be using this for a planted terrarium as I have a ton of strip lights left over from various projects and more than a few power supplies collecting dust. I had a hard time finding a way to reach you, so I hope this way works.
Hi, any idea who first designed tc420 circuit, is it a proprietary technology? I was thinking of making my own timer-dimmer using a spare Arduino Mega AT I have with me, hope I will get time to programme that. If I could it will be my first ever Arduino project.
Hi Neeraj. I have no idea who designed the TC420, I just came across it while searching the internet. Originally I was going to use and Arduino to make a few aquarium timers/controllers. but after finding the TC420 and working out the costs and time involved, I just stuck with the TC420. I may try again with Arduino or Raspberry Pi in the future as I was also going to add other features, but for now I'm happy with these.
Can you please answer this query as i its my first time with these kind of devices and before ordering I thought to clarify on the following. The LED light I intend to build will be around 50 W (40g tank), comprising white and blue LEDs and a couple pink and red maybe. Each LED (bead-type) will be 3W (apps 3.5v , 700mA). I have a iron-cage driver(adapter) of rating 12V, 5A. So I plan to solder 3/4 LEDs in series and 5 /4 such circuits in parallel, Essentially 3x5 (or 4x4)matrix, totalling 15/16LEDs(I may go in for12v 10A driver as well, if reqd). The question i have is if I use the TC420, and lets say I create total 3 channels ( each with 5 LEDs), and lets say in moonlight mode, I programme the TC420 in such a way that all the other LEDs are off and only blue LEDs( 3 in number) are ON, so won’t I have the driver issue? As in all the output of driver(5A) is now being carried by these three LEDs in series (requiring only 2.1A), so won’t it overheat the LEDs? I hope you understood my question. Can you please show how you used TC420, how many LEDs and what driver etc? Essentially by using the TC420, is there any effect on the 12v driver/adapter rating? As there are different channels. Thanks much
Hi, do you think if i can use TC420 to build an automatic feeder? 3 tanks will be fed at different time of day! I will have 3 x 12V DC Motor 2.1A... And 1 minutes timing enough for me as i can arrange the speed of motor (by percentage you showed in video)... One of my electronic engineer friend told me that ican use it perfectly unless my motors not more than 4A... Thanks for the answer and video :-)
Just wanted to thank you for keeping the website up and running! I will be using this for a planted terrarium as I have a ton of strip lights left over from various projects and more than a few power supplies collecting dust. I had a hard time finding a way to reach you, so I hope this way works.
Appreciate the efforts to educate on TC420.
No problem, I hope it helps. It'll be much better when I get the chance to make videos.
Hi, any idea who first designed tc420 circuit, is it a proprietary technology? I was thinking of making my own timer-dimmer using a spare Arduino Mega AT I have with me, hope I will get time to programme that. If I could it will be my first ever Arduino project.
Hi Neeraj. I have no idea who designed the TC420, I just came across it while searching the internet. Originally I was going to use and Arduino to make a few aquarium timers/controllers. but after finding the TC420 and working out the costs and time involved, I just stuck with the TC420. I may try again with Arduino or Raspberry Pi in the future as I was also going to add other features, but for now I'm happy with these.
Can you please answer this query as i its my first time with these kind of devices and before ordering I thought to clarify on the following. The LED light I intend to build will be around 50 W (40g tank), comprising white and blue LEDs and a couple pink and red maybe. Each LED (bead-type) will be 3W (apps 3.5v , 700mA). I have a iron-cage driver(adapter) of rating 12V, 5A. So I plan to solder 3/4 LEDs in series and 5 /4 such circuits in parallel, Essentially 3x5 (or 4x4)matrix, totalling 15/16LEDs(I may go in for12v 10A driver as well, if reqd). The question i have is if I use the TC420, and lets say I create total 3 channels ( each with 5 LEDs), and lets say in moonlight mode, I programme the TC420 in such a way that all the other LEDs are off and only blue LEDs( 3 in number) are ON, so won’t I have the driver issue? As in all the output of driver(5A) is now being carried by these three LEDs in series (requiring only 2.1A), so won’t it overheat the LEDs? I hope you understood my question.
Can you please show how you used TC420, how many LEDs and what driver etc? Essentially by using the TC420, is there any effect on the 12v driver/adapter rating? As there are different channels.
Thanks much
Hi can you please tell me how to reset the timer back to factory settings.
Hi, do you think if i can use TC420 to build an automatic feeder? 3 tanks will be fed at different time of day! I will have 3 x 12V DC Motor 2.1A... And 1 minutes timing enough for me as i can arrange the speed of motor (by percentage you showed in video)...
One of my electronic engineer friend told me that ican use it perfectly unless my motors not more than 4A...
Thanks for the answer and video :-)
Where to buy lmk asap