Design an auto-voltage selector for sintering oven.

We need auto-select transformer windings based on the detected input voltage. The possible voltages are 100,110,120,200,208,220,240. It is envisioned that an Arduino (which could be embedded into the circuit) of whatever flavor is used to select the voltage based on the sensed voltage. The circuit should be able to handle around 10 amps at the 200+ Level and up to 21 on the lower voltages. You will find a spreadsheet attached, which shows the color code for the transformer as well as each of the connections that have to be made. Connections to the supply are coordinated and they follow the diagram as shown in the attached spreadsheet. This is AC voltage and so appropriate Triacs will need to be turned on and off based on the voltage sensed. As an example, if the detected voltage is 240 and given that white will always be connected to the ground, orange goes to the hot side and black is bridged to brown. so the Triacs need to be turned on as appropriate to match the detected voltage. We can create the sketch in-house if required to cause this to happen. We need the GPIO pins on the arduino to do whatever they need to safely turn on the triacs.