Rev II Update

A project log for Simple Universal Motor Speed Controller

The goal of this project is to build a simple universal motor PID speed controller using a minimum number of components

rhysRhys 07/06/2014 at 02:340 Comments

Eagle files have been updated to Revision II :)  I added in a MOC3020 opto-triac driver and associated passives.  Hopefully the BTR24 will trigger properly now.  Also removed the ICSP header and added a 4pin serial header instead to make firmware updates easier. PCB size was increased a bit, designed to fit two on a 4x6 PCB blank.  Also replaced the screw headers with large holes and pads to solder the HV wiring to.  Should balance out the added costs of the MOC3020 and passives.

I'll try to get a PCB etched and populated tomorrow for testing.  Here goes round II!