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Small pcb, assembly cost?
If you've got 100-200 boards, have you considered getting a stencil made, and using a skillet to reflow them?
Wednesday, 26 May 2010 - 12:36
Identifying an I/O connector - help needed
I think the beast you're looking at is commonly known as "USB micro b"
Monday, 24 May 2010 - 22:59
Detecting AC power
You could detect power fail by coupling magnetically to the mains cable, and looking for peaks that correspond to your local line frequency. Power-on could be done through a non-...
Thursday, 20 May 2010 - 22:34
AT90USB1287 and USB EDGE Modem
You will need to establish a PPP connection, and manage the TCP/IP/PPP stack on your AVR. There is no AT command that will do that.
Thursday, 20 May 2010 - 13:11
Automatic flower watering system
There is this option http://www.cheapvegetablegardene... I'd personally use a similar scheme, but measure capacitance between the two leads instead. The moisture should change it...
Thursday, 20 May 2010 - 13:06
Can Logic Analyzer be used to measure clock & PWM Signal
I have met situations where clock issues were not due to duty-cycle or period, but rise/fall time and oscillations and overshoot. A logic analyzer cannot show those. You will...
Monday, 17 May 2010 - 14:27
Weight and Force
brunomusw wrote: Could you explain the spring-extension scale? this exist or need to be made? Quote: Tension or compression force measurement? Compression force. A spring...
Monday, 17 May 2010 - 14:26
dragon usb and ubuntu issues
Ah. You're using the in-tree version of avrdude. That segfaults if you attempt to program using the dragon_isp target. It's fixed in the...
Sunday, 16 May 2010 - 22:41
Weight and Force
Perhaps you can explain the exact situation where this sensor will be used. Are there any external forces acting on the mass in question, making it relatively heavier? Vibrations...
Sunday, 16 May 2010 - 22:28
dragon usb and ubuntu issues
It should be unnecessary to run avrdude as root. You should be able to modify the udev.d rules file on your distribution to automatically grant the correct ownership and...
Sunday, 16 May 2010 - 15:12
What makes "Production Code" different?
Production code? Possibly code that is maintainable (i.e. well documented, no funny tricks) and reasonably robust (e.g. should accept and operate properly over all unexpected...
Wednesday, 12 May 2010 - 14:50
A good (prefer SOIC) PAL *and* NTSC encoder chip?
Try the Analog Devices AD725? It will turn RGB into composite.
Tuesday, 11 May 2010 - 22:30