timer circuit with relay output

Definitely a preference thing. I've used PICs extensively and have a fair amount invested in them (stock, programmers, designs, experience) but have basically stopped using them. The arduinos have super easy programming (plug in a USB connector), have a very good IDE (especially for beginners), an extensive library and are dirt cheap (I just bough 5 Nanos for $15). Plus, the IDE extends to 32bit ARM boards like the Teensys where you need to compute power.

I can't answer your "forgetting" issue. It does happen though for some reason, the only thing that has seemed to fade for me is the PIC knowledge.

It's interesting that I designed a similar fan controller for my stereo closet using a Nano, temp sensor, 2 LEDs, mosfet and some resistors. Whole thing runs off a 12V wall wart. Total code is about a screen full including comments. Cost - all the but the Nano and fan was from stock but probably less than $5, excluding the fan. Plus, I can hook up a PC and download info on the max and min temperatures that it's seen.

ArakelTheDragon said:

I havent been using arduino, I use PIC. It depends on the person, will he want to learn the MCU IDE and programming or is he better with wiring a few chips.

Unfortunately when I use the MCU I begin to forget and after I have problems when I want to make a circuit.

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