On the Drawing Board
adventures in electronic circuit design
Wednesday, March 30, 2011
DesignSpark PCB
›
Prototyping boards / stripboards are hardly the easiest way to make printed circuit boards. Because of the fixed pads and tracks it's im...
2 comments:
Monday, March 14, 2011
Four-way traffic light
›
Scoured some 20 toy and collectibles stores in search of a model/toy traffic light that I can hack and modify. Not a single one had. Unbelie...
Wednesday, March 2, 2011
PIC 12F1822 current draw at different frequencies
›
Because the datasheet for the PIC 12F1822 lists the supply current for only a select number of internal oscillator frequencies I went and ...
Friday, February 18, 2011
Now when will I get one?
›
Agilent just unveiled its latest lines of InfiniiVision oscilloscopes . Brochure and spec sheet for the 2000X and 3000X. Dave Jones has a...
Monday, February 7, 2011
Philips RC-5 Infrared Protocol Decoding
›
Currently developing a circuit that will have as its input device off-the-shelf (TV) remote controls. I initially planned on using the NEC p...
Monday, January 24, 2011
99-minute timer with dual 7-segment LED display
›
My objective in this design was to simply it as much as possible parts-wise--to minimize the number of discretes. The original design call...
1 comment:
Wednesday, January 5, 2011
555 propagation delay
›
Still using the same 555-relay circuit I did a "prequel" and monitored the propagation delay between S(et)-R(eset) inputs and 555...
‹
›
Home
View web version