Toss in a few solid sate relays (SSR) and a K-Type Thermocouple, like the ones Adafruit has here, and your good to go. I like the idea of a standalone PID controller as it’s one less PC controlled device to worry about.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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That’s interesting. I wouldn’t mind building a one off.
This is pretty handy! We’ve come up with a similar concept for sous vide cooking, which in fact would work pretty well for a solder reflow oven. The kit is $80, but includes SSR, heatsink, enclosure and ATMega with Arduino bootloader. We’re limited to 10 A (1200 W), though it could be pushed to 25 A if a fan is used to circulate air. Check it out! http://lowereastkitchen.com . We’ve had some classes at NYC hackerspaces (you can see them at our blog http://qandabe.com )