Hardware hacker since about age 13 or so: 30+ years experience in breaking & (sometimes) reassembling stuff :-)
Software hacker since around age 17: first computer was a Radio Shack Micro Color computer
Tons of experience in analog & digital electronic design, software architecture, design, embedded systems from tiny 6805 running on bare metal to Pentium-class systems under Windows XP Embedded.
Enjoy technical contact: feel free to send me messages/email, etc. and I like consulting on fun projects.
MS Software Engineering; BS Electrical Engineering
|
May
9 |
|
answered | How to use the same switch to control LED and vary resistance? |
|
May
6 |
|
answered | Any DC-powered, low flow-rate, inexpensive water pumps? |
|
May
6 |
|
answered | Do engineers still design for volume using discrete through-hole bipolar transistors? |
|
May
1 |
|
answered | How can anyone use a microcontroller which has only 384 bytes of program memory? |
|
Apr
22 |
|
answered | How might one "short out" a diode? |
|
Apr
22 |
|
comment |
AVR Pin Dual Use: Input and Output at (seemingly) the same time With just a 10k resistor turning it off, I'd be concerned about power dissipation in the FET when the MCU's output goes high-Z. |
|
Apr
17 |
|
comment |
Will crimped wire or soldered wire carry a current better? I agree with this answer as the best solution. The problem is that tools to crimp a connector properly can be expensive, so for a one-off, solder may be a better choice than a poor crimp with an inferior tool. |
|
Apr
17 |
|
comment |
Circuit works on breadboard but not PCB I don't see the need for an inverter either. The AVR has PCI - Pin Change Interrupts in addition to INT0/1. PCI detects a change in pin state whether it's HIGH or LOW. You can trigger on that and then add debouncing code. |
|
Apr
16 |
|
answered | Attaching circuit boards to form 3D Shape |
|
Apr
13 |
|
comment |
Integer to ASCII in C18 I normally use sprintf() as well, however it's by no means small footprint. I don't remember actual numbers, but you will notice a significant increase in code size. But silicon is cheap :-) |
|
Apr
12 |
|
answered | LM317 construct 3volt output and 2amp output |
|
Apr
11 |
|
comment |
Would plugging a 1M resistor into the outlet be bad? Am I going to be the only person to ask why you're sticking a resistor into the AC outlet? |
|
Apr
9 |
|
answered | AVR AtTiny84 is stuck on 128kHz clock, avrdude + Arduino as ISP can't reach it |
|
Apr
8 |
|
comment |
Serial and parallel circuits and power Just noticed that Camil Staps beat me by 16 seconds! His answer is more complete, so I upvoted it. |
|
Apr
8 |
|
answered | Serial and parallel circuits and power |
|
Apr
8 |
|
answered | Turn an LED off and on with the same push button |
|
Apr
4 |
|
answered | Simple Morse code transceiver circuit |
|
Apr
1 |
|
answered | I need help designing a very simple timer |
|
Mar
29 |
|
answered | how to automatically reverse the direction of a stopped gear motor and restart 12 hours later |
|
Mar
20 |
|
comment |
Stability (phase margin) analysis in real feedback circuits It sounds like you're trying to build a type of lock-in amplifier. I have never designed one, but perhaps searching on that term may show a better way to accomplish it. |
