I need to create a project where i take my arduino mega and read a temperature from a probe. then based on the temperature turn on a lamp to adjust to a set temperature.
IE keeping the temperature set to a say 85 degrees.
Im totally new to this. the probe could do with being water proof and maybe have a display and either buttons on it to adjust the temp. Ive seen the relay shields that have 4 relays on them and this could be useful to use as i may want to replicate the process on 4 differnt ones at 4 different temps. Im in the UK so must be able to use 240v and im likely to be using a standard 100w light bulb in the lamp.
Please can anyone point me in the right way or guide me to look at the right place.