Tuesday, November 11, 2008
How to fix a Motorola H700 (or H710) headset:
At least, when you drop it...
Get the top cover off by popping it up at the hinge side (this is what pops when you drop it)... then at the charging end, slide the top towards the hinge to slip the clips out from under something.
the folding mic tells the board it is open by a small z-shaped piece of plastic. The skinny end of this fits into a tiny hole in the bottom of the case and the fat side slides up and down in a little round space over on the side of the case. There is a rubber button with a dark piece that sits on top of the round space. The dark side of the rubber piece presses against a round circle on the circuit board and tells it whether the mic is open or closed. Once you put it all together, you have to press the board down pretty firmly to tell if it is all working.
Then put the volume buttons back in place and slide the top back on.
At least, when you drop it...
Get the top cover off by popping it up at the hinge side (this is what pops when you drop it)... then at the charging end, slide the top towards the hinge to slip the clips out from under something.
the folding mic tells the board it is open by a small z-shaped piece of plastic. The skinny end of this fits into a tiny hole in the bottom of the case and the fat side slides up and down in a little round space over on the side of the case. There is a rubber button with a dark piece that sits on top of the round space. The dark side of the rubber piece presses against a round circle on the circuit board and tells it whether the mic is open or closed. Once you put it all together, you have to press the board down pretty firmly to tell if it is all working.
Then put the volume buttons back in place and slide the top back on.
Wednesday, February 08, 2006
Peltier temperature controller
Uses Basic stamp for control, but has a nice circuit diagram.
Uses Basic stamp for control, but has a nice circuit diagram.
Friday, January 20, 2006
Power Supply Fun
How to turn a computer power supply into a bench supply
How to Convert a Computer ATX Power Supply to a Lab Power Supply - WikiHow
How to turn a computer power supply into a bench supply
How to Convert a Computer ATX Power Supply to a Lab Power Supply - WikiHow
Wednesday, January 18, 2006
Probably the best site i've found for unlocking a Treo, but they do it by flashing the ROM, which is scary.
TreoFaq: The Treo Knowledge Base
TreoFaq: The Treo Knowledge Base
Tuesday, January 17, 2006
PDA audio head unit
turns an old palm into the head unit for a linux audio box
GiantDisc: Audio Jukebox
turns an old palm into the head unit for a linux audio box
GiantDisc: Audio Jukebox
A PID example with good links
Using a PID-based Technique For Competitive Odometry and Dead-Reckoning
Using a PID-based Technique For Competitive Odometry and Dead-Reckoning
Thursday, January 12, 2006
How to power an OP-AMP
Finally, someone shows me the quick and easy chip I've been searching for to get dual supply for op-amps that need positive and negative voltages... this is one of those things that people who work with op-amps are so comfortable with, they never bother to mention them...
Power Supply Circuits
Finally, someone shows me the quick and easy chip I've been searching for to get dual supply for op-amps that need positive and negative voltages... this is one of those things that people who work with op-amps are so comfortable with, they never bother to mention them...
Power Supply Circuits
Friday, August 26, 2005
ASCII artist program... great for making cool sig files
JPEG / JPG / PNG / GIF Picture to ASCII Art Generator
JPEG / JPG / PNG / GIF Picture to ASCII Art Generator
