I am currently building a small reflow oven for the fun of it and have settled on using 2 Solid State Relays (mounted on heatsinks and all that) and controlling them using an arduino. My question is, with the parts that I have available, what do you recommend I use to switch on/off the relays? One certain thing is that I cannot/shouldn't directly connect the arduino to both relays simply because they draw a maximum of 25mA and the Arduino is 20mA max.
No the relays are still on their way but im going with datasheets while I design the circuit. You may be right however I think I will still feel better off with 2 transistors also considering its a one time project and I have hundreds of them