Incubator Design Process

[BantyChooks]

Ordered an STC-1000. I’ll try to get a refund on this one.

 

[Island Coppers]

BantyChooks,​

In the second diagram you'll notice the input is not labeled line and neutral. So, depending on how you plug it in these diagrams are the same with the exception that the first one has a ground to the heater & cooler. It will work fine either way. Have you closely examined the soldering connections on the circuit board? I have fixed many malfunctioning circuits by re soldering cold joints. Also you can sometime see the effect of excess heat on a part turning the board slightly brown.

I’m not losing my marbles, right? These are two different diagrams? The top one indicates that terminal 1 is live, and the bottom indicates that terminal 2 is live. Necessarily, or else the heating source would not make sense, despite the unclear labels.

I tried both configurations but now I wonder if I fried it. Multimeter shows that the terminal is live but neither configuration works…
View attachment 4088057

 

[BantyChooks]

BantyChooks,​

In the second diagram you'll notice the input is not labeled line and neutral. So, depending on how you plug it in these diagrams are the same with the exception that the first one has a ground to the heater & cooler. It will work fine either way. Have you closely examined the soldering connections on the circuit board? I have fixed many malfunctioning circuits by re soldering cold joints. Also you can sometime see the effect of excess heat on a part turn the board slightly brown.

Thank you. I didn’t see anything wrong with the board.

 

[BantyChooks]

Anyway, it’ll be complete once I receive the new thermostat. Everything else is in working order. After I get this set running I will start on the second (fancy) incubator.

 

[Tstraub]

VCC and PCK look like cold joints to me. That one beside GND isn’t much better

 

[Tstraub]

Btw if you’re not familiar with the terms VCC and GND are DC positive and negative they are really important to make the microcontroller power on.

 

[BantyChooks]

Btw if you’re not familiar with the terms VCC and GND are DC positive and negative they are really important to make the microcontroller power on.

Oh thank you! I’ll look into it. Perhaps time to learn how to solder.

 

[BantyChooks]

STC-1000 arrived. Will install it today or tomorrow.

 

[BantyChooks]

Works beautifully, no issues with the new thermostat. Testing temperature stability today.

 

[HatchCraft]

Works beautifully, no issues with the new thermostat. Testing temperature stability today.

Good deal. They make a hi precision version of that controller (PID). Would not be a good choice with lightbulbs as a heat source. Simple wiring and setup. Has direct output solid state relay but will only switch 2amp. Around 30 bucks on Amazon here. That being said i've never seen one on a home built bator, it's always the stc-1000 version. I guess it is almost twice the price though.