Switchmate

MrMobileWill bluetooth, HomeAutomation, indiegogo 8 Comments

Last year my friend and I backed the Switchmate on Indiegogo.  At the time I didn’t have much of a home automation setup – just two window nodes and the slider.  Not even any connected bulbs and I was still on DomoitaGA so I didn’t have any of the fancy rules I now have in openHAB.  Over the course of the campaign, they had different deals so I ended up with three rewards.  I had actually forgotten about them, in part because since switching to openHAB and getting connected light bulbs, the need for these switches seemed diminished.  But one day I was pleasantly surprised to receive a shipping notice.  A few days later I received the package in the mail …

Bluetooth Roomba Part Two

MrMobileWill bluetooth, roomba 0 Comments

Continued from Part One. After the MOSFETs arrived! I attempted the rear MOSFET labeled U4 first. Instead of desoldering it, I just clipped the legs and heated up the other side. It come off without a hitch. Cleaned up the pads, added some flux and soldered the new part. Piece of cake, one more and I am done. Back side MOSFET before removal The second one didn’t go so well. There is a large diode above the MOSFET which makes it hard to heat up enough to remove it. Adding more heat was a bad idea as the MOSFET rear drain plate transfers heat rather well and heats up the PCB. Which, combined with me trying to pull the MOSFET out with tweezers, I ended up lifting …

Bluetooth Roomba Part One

MrMobileWill bluetooth, roomba 0 Comments

A few weeks ago my dad called to let me know he had found a Roomba Discovery with the SCI (serial port) for $15. The first one I received that he found didn’t have the serial port so I gave it away. All that  was missing was the remote, so he got it for $10. What a deal! Unlike the first one, the battery was not recoverable at all. So the weekend before last while visiting the Raspberry Pi tour at HackerDojo, I stopped by Fry’s Electronics to pick a new battery and a few components to add Bluetooth to the Roomba. Currently I am using Bluetooth since that is what I have on hand, later on I will probably convert it …