I'm trying to build a thing (namely, https://hackaday.io/project/75-z80-microcomputer-system) and the original dev is rather busy and can't answer questions as fast as I'd like. (In related news, I'm an impatient f***. At least I know it!)Within...
It's not surprising that 2017 was a day shorter than 2016 because of a leap day. But 2016 also had a leap second in it.What's fascinating to me about that is that good clock design can handle the insertion of a leap second. I came across this project...
Building LMARV-1: a tangible RISC-V processorhttp://www.halfbakedmaker.org/blog/lmarv1-1 LMARV-1: A RISC-V processor you can see. Part 1: 32-bit registers.https://www.youtube.com/watch?v=yLs_NRwu1Y4 The LMARV-1 (Learn Me A Risc-V, version 1) is...
Something that bothers me for quite a while now: why is there no small / cheap hardware emulator for BLDC motors? I've seen contraptions where two motors are coupled and one is actively driven whereas the other just has a resistive load hooked up to...
Intro to KiCad series with Shawn Hymel:"Shawn shows us how to create our own custom footprints. Shawn also provides tips on finding example footprints"
I have spent a few hours searching for SOT23 PNP transistors that have the following pinout: 1-Base, 2-Collector, 3-Emitter for driving a common anode 7-segment display. I made a mistake on my schematic and now have 4 PCBs that I would like to try to...
'We're opening up applications for our next accelerator class! Brinc's accelerator programs started in 2014 and ever since, we have been helping early-stage IoT, Connected Hardware, Drones, and Robotics companies to ensure that they get the early...
I've been looking for I2C multiplexers but all I seem to find are TCA9544 and the likes which are basically analog switches / level translators merged with an 8 bit GPIO expander. Since these parts insist on receiving a stop condition after selecting...
A little bit of googling leads me to believe these outlets have an ESP8266 inside them, anyone experience this ? I'm thinking of getting a few for custom firmware hacks. https://www.amazon.com/Etekcity-Voltson-Outlet-Monitoring-Required/dp/B06XSTJST6/ref=br_msw_pdt-4?_encoding=UTF8&smid=A99MZGWBBIGK9&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=&pf_rd_r=FY9R3TDD1JT8FV4AGEMG&pf_rd_t=36701&pf_rd_p=1507acd0-824d-41b3-b05c-3b288136f12d&pf_rd_i=desktop...
Does anyone know what video display controller Eric Schlaepfer used in his KIM 1 style computer that he attached to his Monster 6502 https://monster6502.com/ ?
I've posted a video that shows how to program an Arduino to “Magically” switch an LED on and off by shining a keychain light at it. The video describes how the technique works for one LED as well as for a set of 8 LEDs, each of which...
Hey, anyone have advice on driving high voltage brushed DC motors? E.g. treadmill motors or the lovely old ones that last forever if you change the brushes out? They are available for dirt (I got 3 for $15 each! Working!) and yes, I know the new BLDC...