I've had a support ticket open for a month or so now, with no response.
I'm really eager to place more Dirty SLA orders (the last parts I got back were fantastic!) but I need to get my address fixed in your DB, and the My Account > Profile page is broken.
Just curious if it would be possible for Dirty Decapping to return the decapped chips someday. I suspect a number of us (myself included) have access to nice cameras and magnifying gear, but not safe chem labs and toxic acids.
I'd have no problem with the service capturing/sharing their own image, I'd just like to also take a crack at making my own.
One of the hit discoveries of Hacker Camp 5 were these little USB lights. Plugs in either way, and you turn on/off/dim by touching the back. Turns out the show is run by a chip called the Sigma SGL8022W. The datasheet has the schematic.
I developed this a while ago, but just got around to posting the results this weekend. It's a digital meter for measuring color; either the reflected color of solid object, or emitted light. It works, but the original goal was to measure/calibrate the output of RGB LEDs driven by PWM, but that didn't work out so well.
Has anybody played with one of these? For $13 (Digi-Key) you get:
- 48Mhz ARM -128K flash, 16K SRAM - USB OTG - Capacitive touch slider - RGB LED
Not bad for less than half the price of an Arduino. I'd be curious to know what the dev toolchain is like (and if you can get something workable for free).
Looking at the rules, I didn't see anything about when a project needed to be done, so I thought it might be fun to post something that was built with discrete 7400 logic, because, like, that's how you actually made stuff.
[align=center:][/align:] Back in college, we did two large projects for a hardware design class: a four digit RPN calculator, and an 8-bit computer with 1K of RAM and serial I/O.
Full details (including detailed notes and schematics) are here:
The "I" command says: [tt:]Bus Pirate v3 Firmware v4.1 Bootloader v4.1 DEVID:0x0447 REVID:0x3043 (B5)[/tt:] Although it says "v3", it's v2.go board. Does the "new interface" change the command syntax at all?
I bought my v2go a while back, but finally really needed it today to debug an I2C gadget. Works as advertised, but I couldn't help but notice that the Pirate's command line is not so user friendly. Surely a few lines of code to support the delete key and maybe ^U? Or are these hiding somewhere and I just need to turn them on?
By the way, if anybody out there is trying to talk to an Avago ADJD-S311-CR999 light sensor, the incantations are:
I'm glad somebody else noticed this; this really threw me for a loop too. Microchip has a standard programmer pin ordering (MCLR/Vpp, Vdd, GND, PGD, PGC). This is used by the PICkit, ICD 2, etc.
I hope Ian has a Really Good Reason for swapping the two lines, because it sure is a nuisance if you want to re-flash the firmware.
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