There are different philosophies of how to approach the sound in music robotics. Some artists don’t use amplification at all and work only with the natural sound. This is somehow the major-league, because it involves a lot of knowledge about acoustic...
Still Thursday or whatever, 21:22, 08/12/2022Thursday, 16:41, 15/12/2022 - it took me an entire week to finish this incomplete project log.Also, I will skip the part were I fix grammar mistakes, this Project Log is just so long that it is lagging...
In case you haven't heard the news yet, there is an open source PDK in the making for a 130nm node, and a promise of free, gratis chips ! https://hackaday.com/2020/06/25/creating-a-custom-asic-with-the-first-open-source-pdk/ This is what I had been preparing...
(update: check/update to current; some $ up again; motor supply consolidation; Amazon link weirdness) Started tracking part prices because they've been a bit volatile and small changes to small prices can be significant. Still tracking because still...
[this log entry copied from #Minamil where it was updated 26 Oct 2021] Started tracking part prices because they've been a bit volatile and small changes to small prices can be significant. Still tracking because still changing -- some changes...
Report descriptor (packet) structureByte.BitFunctionDescription0.7X7analog value X LSB0.6X60.5X50.4X40.3X30.2X20.1X10X01.7Y5analog value Y LSB1.6Y41.5Y31.4Y21.3Y11.2Y01.1X9analog value X MSB1X82[4:7]H[1:4]hatswitch buttons2.3Y9analog value Y MSB2.2Y82.1Y72Y63[0:7]Rzanalog...
I have spent several hours on the BMS project during this week end and the schematic of the main module is finished now. The PCB patterns of all the components are also drawn :-)The module implements an NXP LPC1549 Cortex M3 processor running at 72 MHz....
Building the Arithmetic Unit is great, but as it is there is no simple way to assess its workings. As I've built it, I am personally know what to look at, but for most outside people, the shining of the LEDs on the board is still cryptic. Also, by no...
So far, I have only understood where some Lenovo Thinkpads store their passwords. They are located at 0x380 and 0x400. I interpret this as password and confirmation password. These are seven bytes plus one checksum byte. This is not a CRC. It's...
While the eclectic nature of our shop has a certain charm, several areas beg for a bit of standardization. So from now on all new cordless tools will be DeWalt 20v lithium, and all new shop vacs will be Ridgid 14gallons. Obviously interchangeability...
Bringing the NE555 into the future also means using modern tools. We'll describe the functionality of the dice in VHDL and use PCBFlow to synthesize the digital description into an implementation based on NE555 logic. At the same time this will also...
I should have my test board for the 2SK3018 transistors back next week, but in the meantime I've been thinking about other changes.In the interest of adding more I/O capabilities, I think I've settled on adding an I2C interface to the Q2. I2C is...
Yann pointed out in a comment that a Johnson counter may be a good way to save some gates in the logic implementation of the dice. Currently a simple binary counter is used.To be honest, it seems that I mistakenly thought of Johnson counters being simple...
This is where things get a bit more interesting. I was concerned that it was quite difficult to coerce Yosys into using my custom gate libraries, but in fact it was rather easy. The "cmos" example proved to be an excellent blueprint to creating a custom...