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My PCB order from Golden Pheonix arrived, a day less than two weeks after ordering them. Not bad turnaround!
The PCBs themselves are really nice and I have loads (ordered a panel though I'll only need one or two of each), though I'm yet to actually solder them up. I plan to use some solder paste I just got and reflow them under the grill, which I hope will work.
The only problem I've identified is that one of the PCBs is physically broken (a small bit snapped off when being cut presumably) which breaks two traces, but they'll be easy to fix with a small wire if needed.
They are for my current project - see if you can guess what it is!
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Nikon N65
Outdated Konica 200 Film
One of my obligatory shots for checking a camera - Panama City Beach skyline from the fishing pier at St Andrews State Park
This photo is licensed under a Creative Commons license. If you use this photo, please list the photo credit as "matthew mcglynn / recordinghacks.com" and link the credit to recordinghacks.com.
Moem was cutting a bit of PCB for one of her projects, a circuitboard book cover for a small notebook.
The PCB populated:Leonardo Tiny Atmega32U4 Development Board, a couple of small push-buttons, trimpot, LDR & RTC. All arranged around the outside of the PCB.
www.jaycar.co.nz/duinotech-leonardo-tiny-atmega32u4-devel...
All photos should be credited to Fairphone.
Under Creative Commons license "Attribution-NonCommercial-ShareAlike CC BY-NC-SA."
This license lets others remix, tweak, and build upon our work non-commercially, as long as you credit us and license our new creations under the identical terms.
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...with a grill!
I needed to try out my solder paste and wanted to reflow solder these parts, especially the tricky switch and SD card which would be a pain to solder by hand. I don't have an IR oven or a hot plate (or a reflow machine!) but I do have a standard home grill and figured it would be perfect: the fan moves the air, keeping everything the same temperature while the heating elements are overhead and far away enough to heat uniformly over the surface.
It took 5 minutes from turning on until every joint had reflowed (they started reflowing at 4min) and then I left them for a minute out of the grill to cool down. They seem to have soldered perfectly!
I'm still waiting for the parts for the other two PCBs, but the method seems to be great - and loads quicker than doing it by hand!
P.S. yea, it's not a very well regulated temperature, but I don't have a thermometer that could cope so it's pretty difficult to measure
PCB to build a version of the Atari Punk Console. Several options are built into the bpoard to allow the easy evaluation of external CV or the use of LDR to further bend the sounds or even add on an optional external LFO, and start to create some really strange noises.
Coming soon to Tindie and Ebay form Electro-Resales
Finally the result of 8 months of reconsidering and redesigning.
KiCAD was used as an EDA tool to replace Eagle. The entire layout + schematics were redone from scratch.
This new version features:
128Mbit 16-bit PSRAM
4Mbit 8-bit SRAM
200/400kgate FPGA
100MHz 32-bit uC
2 SPI or 1 SPI + 1 SD native (4-bit)
Buttons: Reset, Freeze
LEDs: Ready, Read, Write
2 switching regulators (3.3V, 1.2V)
2 LDOs (2.5V, 1.8V)
Audio DAC
auto region CIC clone
autonomous (async) + SNES (sync) clock
backup battery (e.g. RTC)
Bus connect: A+B Addr + Data
Interfaces:
SD-Card
USB
2x UART (1 for ISP)
JTAG
The PCB for M2R, Martlet 2's radio.
The radio board features a uBlox MAX-M8Q GPS with an LNA+SAW on the input, a Radiometrix MTX2 which can either connect directly to the output or go via a 500mW RF power amplifier, and an isolated connection to a RockBLOCK Iridium satellite modem. It's all powered by an STM32F303CBT7 microcontroller.
Fore more details on the schematics, see: www.cusf.co.uk/2014/07/martlet-2-electronics-schematics/
The PCBs were sponsored by Cambridge Circuit company, thank you! The Radiometrix MTX2s were sponsored by Radiometrix, also a big thank you!
My PCB order from Golden Pheonix arrived, a day less than two weeks after ordering them. Not bad turnaround!
The PCBs themselves are really nice and I have loads (ordered a panel though I'll only need one or two of each), though I'm yet to actually solder them up. I plan to use some solder paste I just got and reflow them under the grill, which I hope will work.
The only problem I've identified is that one of the PCBs is physically broken (a small bit snapped off when being cut presumably) which breaks two traces, but they'll be easy to fix with a small wire if needed.
They are for my current project - see if you can guess what it is!
My PCB order from Golden Pheonix arrived, a day less than two weeks after ordering them. Not bad turnaround!
The PCBs themselves are really nice and I have loads (ordered a panel though I'll only need one or two of each), though I'm yet to actually solder them up. I plan to use some solder paste I just got and reflow them under the grill, which I hope will work.
The only problem I've identified is that one of the PCBs is physically broken (a small bit snapped off when being cut presumably) which breaks two traces, but they'll be easy to fix with a small wire if needed.
They are for my current project - see if you can guess what it is!
ProBoard - The Expert PCB, cara cepat dan mudah membuat sendiri PCB eksperimen.
Kemasan terdiri atas:
- PCB polos peka-cahaya 10x20cm (tertutup rapat dalam aluminium foil);
- Bubuk developer dalam kantong plastik rapat.
- Cairan film remover.
- Petunjuk pemakaian.
Syarat pemakaian: (1) Memiliki gambar PCB yang akan dicetak dalam bentuk film/klise, atau bahan transparan lainnya. (2) Memiliki larutan etsa Ferri Klorida (FeCl3).
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Contact me: Alex.