Greg

@gregdavill.bsky.social

945 Followers 243 Following

Electronics engineer. RISC-V ASICs at IQonIC Works 🧙‍♂️ (He/Him) I also take macro photos of electronics

Spring loaded scope probes landing on test points on a PCB
SOIC8 part with a visible fracture in the encapsulation
silicon chip from wafer.space
Silicon chip from wafer.space, wirebonded to a PCB with clear epoxy covering. A TT logo is visible as silicon art in the corner of the die.
Colourful 3d printed enclosures for the Glasgow interface explorer
Bondwires in a COB packaged part, one bond wire has snapped from the PCB.
wafer.space chips populated in a COB carrier PCB.
Solder paste stencil over an ENIG PCB. Stencil openings are aligned with the ENIG pads
QFN silicon chip sitting upside down on a ruler, showing that it is 2mm across.
Circuit board with QC sticker pointing to an oscillator which has been installed incorrectly.
Green light emitting diodes on a circuit board
Saleae cables connected to a PMOD
Circuit board. 0402 capacitors. A bodge wire connected neatly between two vias.
Resistors soldered to the edge of a TSSOP package, with a bodge wire connected to them.
solderpaste applied to various footprints on a green circuit board.
solder paste applied to a green circuit board
Benchtop test gear with GPIB adapters installed
3d printed enclosures around a circuit board and connector
AVR programmer attached to a circuit board
Circuit board macro photo showing capacitors, resistors, and other components ontop of solder paste ready for reflow
Circuit board with bodge wire neatly snaking between passives. Connecting two vias.
Assembled circuit board with soldering defect. A tombstoned part. In which a 2 terminal passive is only soldered to one side so it raises up like a tombstone. A small yellow sticker with an arrow points at the defect on the board.
Circuit board with a large BGA footprint. Some pads on the BGA package are larger than others.
Circuit board with solder paste applied. The photo is close enough so you can just start to make out the tiny spheres that make up solder paste. There are 2 components which don't have solder paste applied.
ECPBreaker FPGA development board featuring a Lattice ECP5 FGPA. Being programmed via JTAG from an ORBTrace, that is powered by a Lattice ECP5.
Saleae trace with QSPI signals shown
PCB layout in KiCad showing a bodge plan
USB-C with cable cut, showing only 3 wires: red, black and white.
Electrical schematic showing pin ordering into a connector. Next to the PCB layout which has silkscreen that in no way matches.
Circuit board propped up on a mechanical pencil
Assembly view of circuit board showing every decoupling capacitor highlighted
Circuit board with solder paste applied
Circuit boards alongside a 3d printed enclosure, solder paste stencil and some tools.
CAD view of an enclosure designed around a circuit board
Screen capture in KiCad schematic capture, showing a table cell being highlighted and performing a mirroring operation on it
3d CAD showing a fillet inside a corner of a part, the geometry is using native rounded surfaces, and looks clean.
View from 3d CAD, showing a rounded corner of an object, except it's not actually round, rather lot of straight lines.
3d CAD showing a rounded surface, that is made up small flat planes, rather than a continuous arc. A fillet has created awkward joins to these flat planes.
Hand holding a circuit board with diffusion pattern
Circuit board with curved differential pairs
Circuit board with fancy silkscreen art
Circuit board render
Circuit board rendering. A USB-C port and chips are visible. The board is labelled ECP Breaker r3p0
Rending of a circuit board, Components and soldermask look pretty realistic.
Components on solderpaste. The center of the image is two resistors back to back sitting sideways on the space typically taken by a single resistor.
SPI decode, showing 9bit packets
Australian dollar coin with a surface mount 32.768kHz crystal component.
Circuit board with a connector labelled JTAG. The circuit board has LEDs along the front with various silkscreen labels. The connector has cables attached that are vibrant colours. Red, blue, green, yellow, white and black.
0201 capacitor soldered to a circuit board
PS5 controller PCB
USB C connector on a PCB. The back of the connector is open and crossing conductors are visible
Home assistant screen showing various sensors made available from a dishwasher.
Solder paste, stencil with squeegee
KiCad window with components laid out on top of an image of a circuit board.
Mechanical flip dot display module on a desk. The display shows 99. There are some tools and circuit boards on the desk.
Video of a 5x7 matrix display created with mechanical flipping discs. The discs are black on one side and yellow on the other. They are alternating between the letters ‘H’ and ‘i’
Circuit boards and flipdot modules
Solderpaste stencil. With a aperture cutout for a PCB stand-off. It has a circular shape that looks a bit like a flower
Green circuit board with components placed
Home assistant page showing sensors from a dishwasher. Top drawer is 207 cycles complete, and bottom is 90.