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Simple 1-channel RGB amplifier circuit.
A friend of mine collects old video game consoles, and has a NEC Duo with only a composite output. He wanted a RGB output to plug into his SCART switch, and bought a kit from some...
Friday, 10 July 2015 - 13:57
VCC net routing topology.
Consider the attached picture. The highlighted net is VCC, at 3.3v. There are 5 transistors on the left side, that will be switching max 100mA @ 14.4KHz (one at a time), and under...
Friday, 1 July 2011 - 18:01
Timer interrupt issue: reality or simulator broken?
So I am having a small problem, and I believe it is no problem at all, just BASCOM`s simulator acting funny. I have two timers, T1 and T2, that are configured to output an...
Tuesday, 28 June 2011 - 16:33
Efficient algorithm for 2x uint8 to 4-bytes BCD array?
Suppose you have 2 unsigned 8-bits integers that you want to convert into a 4-bytes BCD array, how would you go about it in the most CPU-efficient way? Example: Turn: uint8_A = 45...
Sunday, 26 June 2011 - 18:58
7-Segment x 5 digits @ 3.3v 10mA/seg, duty cycle?
See the attached schematic fragment. This question is more of a programming question. I have this setup on a board running on a 7.3728MHz crystal that also has PWM audio, with a...
Thursday, 23 June 2011 - 23:06