polprog @gorplop@tacobelllabs.net
- Website
- https://polprog.net
Photonics by day, electronics by night. I teach and learn
Joined Apr 2022
Board and LED. This is bright enought to illuminate my desk at ca. 30mA, does not even get hot.
Testing the video LED driver for the mechanical TV, gain and pedestal adjust work wery well too.
I just blew it up because the 12 supply touched the GPIO pin, awesome.
PWM value change every 100ms in one of the threads (~85% cpu usage, Raspi model B+ v1.2)
Hell's freezing over, this is multithreaded GPIO in pure python 3.
The EGT indicator toots were repated bc i didnt notice that the crossposter to bird site was not enabled for masto replies. So the tweets i made manually got reposted on masto lol
The display is liquid crystal! Theres space for 3 digits in the middle, it has a blue backlight (4 leds). EGT = exhaust gas temperature?
omg. It's actually a liquid crystal display, with an octagonal zebra strip connector and 4 blue LEDs for backlight :o I think there is space for 3 digits in the middle. The pogo pins go to the substrate
Theres an 87C51 on it, im going to try and take the display head apart. theres only 10 wires going into it.
Todays flea market scores include some parts for a project, a T-mobile payohone card credit checker and some indicator from a plane
RT @sam210723@twitter.com
Tracing FPGA pins on this video decode board from a @pallaslcd@twitter.com video wall display. Using @enjoy_digital@twitter.com LiteX to generate gateware which puts a UART on each Spartan 6 XC6SLX45 pin, transmitting the name of the associated pin.
🐦🔗: https://twitter.com/sam210723/status/1527978892497018880
- is your flac decoder working?
- yes it's just Autechre
RT @f1ac5@twitter.com
- is your amp is broken?
- no, it's just minusbaby
- ... what?
) O o . smh
It's a specialized tool meant for power analysis of smart cards. A very demanding project, USB comms next to a very noise-sensitive analog frontend. Im curcious to see how the new revision performs.
I've been assembling the third revision of this recently, perhaps it will be ready on sunday. Stay tuned.
RT @polprogpl@twitter.com
Ready!
🐦🔗: https://twitter.com/polprogpl/status/1509856692896477186
RT @the6p4c@twitter.com
@polprogpl@twitter.com gonna publish a paper, this is a valid denial of service attack
RT @polprogpl@twitter.com
@the6p4c@twitter.com Rowhammer attack, but you actually open the case and smash the memory with a hammer (works every time, on all DRAM brands)
🐦🔗: https://twitter.com/polprogpl/status/1527522944959881216
- Website
- https://polprog.net
Photonics by day, electronics by night. I teach and learn
Joined Apr 2022
