Latest threads in Electronics Designshow only best voted threads
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Reducing Pulse Duration
Hi all, I have 12V 2.5s duration pulses arriving at intervals of about 100s. What would be the simplest way to reduce these pulses to say 250ms? AIUI 555s cannot be used in monostable mode when the...
55
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7 years ago
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55 | |
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Cheap GPRS module
Hi Can anyone recommend a cheap GPRS module which has supercap or battery to allow for low average power? Furthermore, if I design it myself, what transceiver IC is the best to use (cheap also)...
2
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7 years ago
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pc with auto power-up
Dropbox has announced that they will no longer allow allow XP systems to play, so I guess it's time to upgrade my cabin automation system. I need a small, cheapish, low-power PC that runs W7 or 10....
57
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7 years ago
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57 | |
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inductor for HV flyback supply
I've created all kinds of HV circuits in the last 5 years,** and each one needs an external HV supply. So I really need some simple HV-supply circuits to plop onto these PCB's to make them...
71
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7 years ago
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How reliable is the watchdog on the LPC81x series?
Folks, Have to use an NXP processor and it will be the LPC812M101. An external POR/BOR will of course be provided. How reliable is the internal watchdog timer? Normally I provide an external one but...
23
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7 years ago
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23 | |
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Electric code or UL question, SPST relay on pump
Folks, Got a tight space situation and can't squeeze a large relay in there. A 120VAC pump motor needs to be controlled and the pump pressurizes water drawn from a small local basin. The pump motor...
91
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7 years ago
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91 | |
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Inductor saturation during smps startup
I was looking at using an LT1170 in a Positive-to-Negative Buck-Boost Converter, as per page 14 of this data sheet Thing is, when I put this into LTSpice (using Linear Techology's own model of their...
21
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7 years ago
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21 | |
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Hardware UI design
What would you say is the minimum number of knobs/buttons required to comfortably interact with a small embedded system with a menu, consisting of say 4 or 5 submenus, with a couple of adjustable...
14
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7 years ago
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LM394 (old news?)
Hi all, Trolling some other electronics site, it seems like the LM394 is being made again by some place in Latvia. Now called the AS394. here, and for sale (maybe) here, FYI George H.
3
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7 years ago
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3 | |
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Self Driving Taxi to be Tested
I think this is the way autonomous vehicles will ultimately be used. No point in owning a car when you don't need to drive. Call a "taxi" from you phone and it takes you where you want to go at a...
5
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7 years ago
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Assembly -- SMD vs THT cost
I plan on doing 2 boards for a project, one with all through hole (so I can build my prototype for one) and SMD on the other. If eventually I have these assembled by whoever (in China) just 100 pcs or...
7
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7 years ago
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129 USD gain/phase analyzer
Hi Just wanted to share this I just downloaded the open source gain/phase analyzer for the Pico scopes It works great So use you Picoscope to get a gain/phase analyzer for free, or if you can use a...
1
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7 years ago
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OT: Aw s....
OT: Aw s.... Finally knocked my venerable TI-60X calculator off the desk one too many times and gronked the display :-( Any idea where I might get another? Or an equivalent... I need hyperbolic...
64
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7 years ago
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64 | |
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Creating electromagnetic interference on an mbed to mbed SPI link
Hi, I have an educational project that uses two mbed devices linked together vi a SPI; the transmitter being configured as a master and the receiver config ured as a slave device. There is no...
7
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7 years ago
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Death Ray?
I haven't posted to this group in ages, but thought some of you might find this interesting and could comment on the technical aspects of it. My wife dropped the August 1st, 2016 page from her Downton...
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7 years ago
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