Archive for the ‘part review’ Category

Fascinating details of Waveshare e-paper displays

Thursday, November 9th, 2017

Erich Styger has a nice write-up on Waveshare e-paper displays: I have used E-Ink displays in projects three years ago, but from that time the technology has greatly evolved. That time displays were hard to get, expensive and difficult to use. Now things seem to change with e-ink displays available to...

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Posted in part review | 1 Comment »

Simple electronic fuse

Monday, September 3rd, 2012

Sjaak shared this simple electronic fuse design in the forum: This is perhaps one of the simplest electronic fuse circuit one can make. The circuit uses only one transistor, one SCR, one push button switch and two resistors. Via the forum.

Posted in part review | 5 Comments »

From the forum: Raspberry Pi review

Monday, June 4th, 2012

Here is a review of the Raspberry Pi from the forum: This is my "home" forum for embedded stuff, as the community here is good. Though I note Raspberry Pi (here forward R-Pi) has its own forum (I'm teholabs there). I wonder how many persons here got one? I ordered...

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Posted in part review | 11 Comments »

LC200A LC meter teardown and review

Wednesday, February 22nd, 2012


Posted in part review, Teardowns | 2 Comments »

TS1001 low power, low voltage op-amp review

Thursday, July 28th, 2011

We have been experimenting with the Touchstone semi TS1001 ultra-low power, low voltage op-amp demo board, and the results are in. For our tests, the board inverting op-amp circuit was powered by a solar cell from a calculator with two 0.5v zener in series. The total supply was about 950mV,...

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Posted in Chips, part review | 3 Comments »

Recent Comments

  • Drone: The LM7171 used in this very simple design can be simulated in LTspice with reasonable results at 10MHz using the non-encrypted PSPICE model from TI...
  • Jon Jackson: I would be interested in 1 or 2 of your circuit boards. Jon
  • Max: An actual Saturday "detector" built with the same hardware would use the precisely timed slightly varying length of the day (and some built-in astronomy data)...
  • KH: In the old days, these things remained on paper forever as whimsical scrawls. Today, they are brandished about on blogs for the entire world to...
  • KH: So he doesn't really know what he's doing. Yawn. It's sensor-controlled. It's not an oscillator. A leaf covers the window, you're toast. TLV3702? Overkill. The...