I impulsed a sleeve of programmed chips, with stickers covering what they were. They are a Motorola XC68HC705C9CP microcontroller in a 40-pin DIP package. http://www.elnec.com/device/Motorola/MC68HC705C9+%5BPLCC44%5D/ ^Any one know of a dedicated site...
Does anyone have any experience with paralleling 18650's salvaged from laptop batteries of different brand and/or capacities? I am planning to use salvaged cells that I have recovered from various packs to build a go-cart battery. I don't know the capacities...
My Ozzie (as I'm calling it) has a double-density floppy card, but it's making the system reboot continuously -- there's an intermittent short somewhere. If I had schematics -- or better, that and a theory of operation -- I could figure out what's...
I need someone to collaborate on a RTLSDR project to 'give something back' to first responders in my area. It might even save lives. What's needed is a GNURadio or (preferably) a DLL that can decode pi/4 DQPSK packets.Working with SDR's is an area I...
This is my first project (number 170209) posted on hackaday.io When I browse all projects and sort it by newest, I see 170210 and 17208 listed, but mine that's supposed to be sandwiched in between is missing. Did I tick/untick the wrong thing when I...
Having a hoot riding it, when it runs.When it doesn't, break out the tools and some solid diagnostic theory... but wait, it's a CHINESE-built bike. That means there's at least one curve-ball in the electrical system.Granted, it was a second-hand...
Hi there,A friend of mine recently passed away and his wife has put me in charge of selling some of his historic computer stuff. The problem is I have no idea what it's worth. Can you help me?There's an HP 85 with the owners manual, 4 linking cables,...
If you've enjoyed @gamaral's electronics project here and on YouTube or when he co-hosts TWiT's FLOSS Weekly, then please consider giving to his Cancer Treatment fundraiser:https://www.generosity.com/medical-fundraising/gamaral-s-cancer-treatment...
I'm seeking manufacturer(s) of Epichlorohydrin rubbers, homopolymers and copolymers. If anyone knows where I can find this material please let me know!
I know that there are lots of 18650 cells about with wildly improbable capacities advertised that don't come even close to living up to it. Does anyone have experience with bigger cells, such as this: https://www.alibaba.com/product-detail/3-2V-100AH-Lithium-ion-phosphate_1600071018066.html?spm=a2700.galleryofferlist.0.0.66224c67PYUnhw&s=p...
There's an original Atari cassette deck on the free section of craigslist in my area.https://nh.craigslist.org/zip/d/salem-broken-items/7465890133.html
Anyone know if there's a hex editor compatible with Logisim RAM/ROM files? I don't get even basic copy and paste functionality in the built in editor. Documentation says it supports copy paste but I can only select blocks the copy paste don't...