Search found 497 matches

by parkview
Sun Jul 25, 2021 11:39 am
Forum: Projects
Topic: Switch Sampler PCB
Replies: 1
Views: 117

Re: Switch Sampler PCB

The PCB has arrived and the other day I made up 5 of these handy PCB's that list all the switch info I need:
Switch-samplerV1.1.jpg
Switch-samplerV1.1.jpg (61.69 KiB) Viewed 11 times
You can find all the details at the Gitlab repo: https://gitlab.com/parkview/Switch-Parkview-Sampler
by parkview
Sun Jul 11, 2021 1:50 pm
Forum: Projects
Topic: SOT-23 breakout PCB
Replies: 3
Views: 208

Re: SOT-23 breakout PCB

This PCB has been superseded by a PCB that incorporates a DFN1006 and SOT-23 footprint breakout: viewtopic.php?f=9&t=2461#p3784 AND more importantly - space to write the name of MOSFET that's been soldered into place!
by parkview
Sun Jul 11, 2021 1:35 pm
Forum: Projects
Topic: DFN1006-3 SMD Breakout PCB
Replies: 3
Views: 209

Re: DFN1006-3 SMD Breakout PCB

With feedback from my SOT-23 breakout PCB, in that I need a space to write on the breakout PCB what MOSFET is soldered into place, I redesigned the PCB for a small 3mm x 9mm blank area. I then realised I could incorporate a SOT-23 mounting pads as well. This now gives me a 2 in 1 breakout PCB - bonu...
by parkview
Sun Jul 11, 2021 12:34 pm
Forum: Projects
Topic: Acrylic Display Sign
Replies: 5
Views: 387

Re: Acrylic Display Sign

The blue acrylic sign PCB works really well and I am very happy with it. It is however around 44mm wide, so it won't fit into the initial MDF housing I made, so I designed up a new wider and a bit taller housing. It's made from stacked up layers of MDF and included provision of a USB Micro extension...
by parkview
Sun Jun 27, 2021 10:21 pm
Forum: Projects
Topic: Yard Cart Part 1 - Query Hitching point
Replies: 1
Views: 70

Re: Yard Cart Part 1 - Query Hitching point

Looking forward to seeing the end product.
by parkview
Sun Jun 27, 2021 10:09 pm
Forum: Projects
Topic: Testing Three Solenoids
Replies: 0
Views: 49

Testing Three Solenoids

Ever in need of a solenoid? I recently completed testing three different solenoids to see how far they could each drive a golf ball up a ramp: https://robotsgo.blogspot.com/2021/06/w ... mpare.html

To do this I designed up and laser cut up a 3mm MDF ramp:
ramp.jpg
ramp.jpg (42.52 KiB) Viewed 49 times
by parkview
Mon Jun 07, 2021 7:53 pm
Forum: Projects
Topic: Electronic Laser Target Alignment System
Replies: 0
Views: 95

Electronic Laser Target Alignment System

It occurred to me the other day that I hadn't seen a hobbyist level electronic laser beam alignment device. I have designed up a simple electronic target PCB to test my theory out. In real life, it will need a lot more sensors, but first I need to cheek if the laser will destroy the IR sensor. This ...
by parkview
Mon Jun 07, 2021 7:39 pm
Forum: Projects
Topic: DFN1006-3 SMD Breakout PCB
Replies: 3
Views: 209

Re: DFN1006-3 SMD Breakout PCB

I held off on submitting this for production so I could submit a few other PCB designs at the same time. It's cheaper this way. During the wait, the SOT-23 Breakout PCB's arrived and while building a few of them, I realised that there was no room to write what kind of MOSFET was being soldered into ...
by parkview
Sun May 30, 2021 6:19 pm
Forum: Projects
Topic: The Bussel3 - USB Power and RGB LED Output
Replies: 0
Views: 94

The Bussel3 - USB Power and RGB LED Output

While participating at a Steamhead residency, I noticed that James like to solder up a special combination of USB input/output cables, an alligator clip and two JST-PH connectors, along with a healthy does of electrical tape to hold them all together. I came across this combo again recently and thou...
by parkview
Sun May 30, 2021 5:57 pm
Forum: Projects
Topic: The Bussel4 - Advanced Data Line Translator
Replies: 0
Views: 98

The Bussel4 - Advanced Data Line Translator

This is kind of the https://forum.swmakers.org/viewtopic.php?f=9&t=2463 big brother. It has USB power input and output, along with two lots of mirrored WS2812 (Neopixel), RGB LED outputs. There is provision to solder three wires for say a black JST cable to run direct to a RGB LED string. 3V or 3.3V...
by parkview
Sun May 30, 2021 10:52 am
Forum: Projects
Topic: The Boden1 - a data line voltage translator
Replies: 0
Views: 94

The Boden1 - a data line voltage translator

There are times when you want an easy way to bump a 3.3V logic data signal up to 5V. One case is when you want to use an ESP32/EPS8266 to drive some WS2812 (Neopixel) family of RGB LEDs that operate on 5V. There are a few ways of doing that, but one method is via a SN74LVC1T45DRL IC. It's about the ...
by parkview
Sat May 29, 2021 2:22 pm
Forum: Projects
Topic: SOT-23 breakout PCB
Replies: 3
Views: 208

Re: SOT-23 breakout PCB

The SOT-23 Breakout PCB arrived the other day. I soldered up two AO3401 and two AO3400 SOT-23 MOSFETs onto some of the breakout PCB's. One thing I didn't take into account, is that I didn't leave enough 'white space' to carefully write the name of the MOSFET onto the PCB. SOT-23-Breakout_Sml.jpg The...
by parkview
Wed May 26, 2021 9:13 am
Forum: Projects
Topic: Thread Cutter
Replies: 0
Views: 102

Thread Cutter

My wife loves her rotary fabric cutter, however the long lasting blades eventually are no longer sharp enough to cleanly cut multiple layers of fabric. Instead of throwing this one away, she wanted it re-purposed as a thread cutter. For some projects, she will chain a series of triangles of fabric t...
by parkview
Wed May 12, 2021 10:59 pm
Forum: Projects
Topic: Raspberry Pi - Z80 Controller
Replies: 2
Views: 317

Re: Raspberry Pi - Z80 Controller

The new updated PCB arrived last week and it didn't take too long to solder up on the hotplate, here it is running a small Z80 test LED program that I wrote up: RPi-Z80.jpg I am very happy with how this (eventually) turned out and am looking forward expanding to James's program a bit more so that th...
by parkview
Tue May 11, 2021 10:14 pm
Forum: Projects
Topic: DFN1006-3 SMD Breakout PCB
Replies: 3
Views: 209

Re: DFN1006-3 SMD Breakout PCB

Hmm, in the past JLCPCB doesn't like making PCB's smaller than 15mm x 15mm. But allowing for a 0.1mm V-Cut kerf, I can fit 140 of these into less than 10cm x 10cm PCB, so five panels will give me 700 breakout boards. I am most probably only going to use 10 or so in my life? Here is a portion of the ...
by parkview
Tue May 11, 2021 9:25 pm
Forum: Projects
Topic: DFN1006-3 SMD Breakout PCB
Replies: 3
Views: 209

DFN1006-3 SMD Breakout PCB

This afternoon Hack-a-Day had a posting from someone that created a discrete component DIP8 555 timer PCB that's just a bit bigger than the IC: https://hackaday.com/2021/05/11/smallest-discrete-transistor-555-timer/ Just yesterday I was pondering on what kind of component size that was smaller than ...
by parkview
Tue May 11, 2021 4:01 pm
Forum: General Electronics
Topic: Panelising a PCB
Replies: 1
Views: 199

Re: Panelising a PCB

So I received a panel of PCB's back the other day with it being the first time I have needed to cut up a stencil for the entire panel. In the past, I usually break up the panel and individually stencil and make up each PCB. But having some 50 indervidual simple PCB's it was easier to make up a panel...
by parkview
Tue May 11, 2021 3:38 pm
Forum: General Electronics
Topic: Panelising a PCB
Replies: 1
Views: 199

Panelising a PCB

For most of my simple PCB's, I use this wonderful stand alone software utility to create 10cm x 10cm panels of smaller PCB's: http://blog.thisisnotrocketscience.nl/projects/pcb-panelizer/ . In one of my recent PCB's: https://forum.swmakers.org/viewtopic.php?f=9&t=2457 , I managed to fit 48 small PCB...
by parkview
Mon May 10, 2021 11:13 am
Forum: Projects
Topic: USB Cable Power Tester
Replies: 3
Views: 673

Re: USB Cable Power Tester

The next revision of the cable tester PCB arrived last week and I assembled the board yesterday. So far, the connector spacing is ok and it's working well. Cable-Tester-V0.7.jpg After a few false starts, I found a nice Apple Lightning connector on LCSC, P/N: C168722 URL: https://lcsc.com/product-det...
by parkview
Mon May 03, 2021 9:55 pm
Forum: Projects
Topic: Switch Sampler PCB
Replies: 1
Views: 117

Switch Sampler PCB

I have used many different SMD switches in my many projects. Most of these where purchased over the counter at the Shenzhen markets. While this is handy and cheap to do, it's not very reproducible if your not a regular visitor to the markets. The next cheapest thing to do is to find something on Ali...