jippie

Eindhoven, Netherlands

wirespeed.xs4all.nl/mediawiki

Age: 45

Do you love your Pets as much as I do? Check the Q&A proposal!

I'm into:

  • Linux;
  • Networking;
  • IT Security;
  • Perl;
  • System integration;
  • Arduino;
  • ATtiny & ATmega Microcontrollers;
  • Analog electronics;
1h
comment Glass break algo by ti
1. The lack of using capitals at the start of your sentences makes your question very hard to read. Consequently I didn't read it and I bet there are more people skipping it for that reason. 2. Pasting a huge block of code like you did, won't work either. You'll have to reduce the code the the very part where the problem is. Reducing your problem often solves the issue while doing so, but always makes the code easier to grasp. You can't expect everybody to start troubleshooting a whole program.
1h
revised Glass break algo by ti
added 1104 characters in body
Mar
30
comment Replacing glass fuse with reset button fuse?
If a polyfuse is too slow, you really want to check the datasheet for your proposed "thermal overload fuse" against the datasheet of the glass fuse currently used. This is the disadvantage of buying stuff from ebay, it often comes without a datasheet.
Mar
30
comment Zener diode in stepper motor driver with TPL7407L
Agree the circuit is not clear, took me a moment to figure that out too, but the text in the datasheet was helpful.
Mar
30
revised Zener diode in stepper motor driver with TPL7407L
added 136 characters in body
Mar
30
answered Zener diode in stepper motor driver with TPL7407L
Mar
29
comment Node-Voltage assistance
Show us your calculation so we can point out where you went wrong.
Mar
29
comment can i use atmega328p without arduino just using it in breadboard for projects
Depending on the amount of memory and GPIO-pins required you could consider using a smaller sized (cheaper) ATmega. For ease of use you should double check if the Arduino IDE supports the chip.
Mar
29
comment Designing a common-emitter amplifier circuit
Rule of thumb I(B) is < 10% of the current through R1 and R2. Also C1/R1/R2 does influence the lower frequency response. On a side note, R(L) is not given but it does influence voltage gain.
Mar
29
awarded Popular Question
Mar
29
comment Calculating operating point for circuits with more than one transistor
Rule of thumb for quick estimation purposes is if base current is 10% or less of current in the circuit that it loads, you can disregard it. So if current in R1 R2 is approximately 60µA, then you want to check if the base current is about 6µA or less.
Mar
29
awarded Good Answer
Mar
28
comment Pre-paired bluetooth chips
I'll happily pair BT dongles as a full time carreer at 100$ / pair.
Mar
28
comment pwm and pull up/down
Your question doesn't make much sense, probably caused by the lack of context. You'll have to supply more details about the circuit.
Mar
28
comment Pre-paired bluetooth chips
Did you see the price on those pre-paired dongles? $165.
Mar
28
comment Why do they make traces to LTZ1000 in spiral shape?
With an high stability part as this device you absolutely don't want any mechanical stress on the device. eevblog.com/2015/03/13/…
Mar
28
comment Pre-paired bluetooth chips
Depends on what volumes you are ordering and what you are willing to pay. Do realize that you want the pairing mechanism available for service and troubleshooting purposes.
Mar
28
comment Randomising diode
For what it is worth, the average PC's PRNG is a bit more thoroughly thought of than just a "time-seeded algorithm". Nice article about Linux also discusses how the CSPRNG works. pthree.org/2014/07/21/the-linux-random-number-generator (CSPRNG = Cryptographically Secure Pseudo Random Number Generator).
Mar
27
comment Esaki effect implementation on simple oscillator circuit
Are you sure you have the capacitor correctly polarized? The white vertical band indicates negative lead.
Mar
27
comment Esaki effect implementation on simple oscillator circuit
Hard to troubleshoot without the circuit in front of me. Maybe a good picture will help.
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