Search found 36 matches

by Things
Fri Oct 23, 2015 3:45 pm
Forum: Project Showcase
Topic: Got the time?
Replies: 2
Views: 2186

Re: Got the time?

Cheers :) Haven't used the countdown functionality much .. just spends all day being a clock. Has been running essentially non stop for a bit over a year now and it's going great. Did accidentally kill a few of the LED pixels a while back but didn't take long to find and replace them. Thinking maybe...
by Things
Fri Oct 23, 2015 1:14 am
Forum: Project Showcase
Topic: Got the time?
Replies: 2
Views: 2186

Got the time?

I completed this project just over a year ago now and realized I never even shared it. It's a giant 7seg RGB clock I built because "why not" (and with inspiration from Sparkfun's green-only version). Originally I was going to use non-addressable LED strip with individual drivers but the wiring was t...
by Things
Sun Jul 12, 2015 11:47 am
Forum: Raspberry Pi Expansion Boards
Topic: What is the polarity of the power jack on the PiLeven
Replies: 2
Views: 3194

Re: What is the polarity of the power jack on the PiLeven

Centre pin positive. 99.5% of DC barrels jacks will be this polarity, in fact in my entire time in electronics I've only ever come across one device that wasn't :)
by Things
Wed Jul 08, 2015 1:51 am
Forum: LeoStick
Topic: Using LeoStick to drive Solid State Switch
Replies: 5
Views: 3232

Re: Using LeoStick to drive Solid State Switch

I've successfully pulse width modulated an AC fan using a solid state relay before, but you need to do it very slowly (1Hz tops), so it only really works with motors with enough inertia. That said it's still not ideal and I wouldn't recommend it for anything but hobby projects, and only then if you ...
by Things
Wed Jul 08, 2015 12:51 am
Forum: LeoStick
Topic: Using LeoStick to drive Solid State Switch
Replies: 5
Views: 3232

Re: Using LeoStick to drive Solid State Switch

Not really relevant to your actual question, but what motor are you driving, and what solid state switch? Just asking as most things marketed as a "solid state switch/relays" are usually designed for operation on AC power, and not many are actually interchangeable between AC and DC. You code could b...
by Things
Thu Jul 02, 2015 10:22 am
Forum: HBRIDGE: H-Bridge Motor Driver Shield
Topic: "Pulsing"/ "Knocking" Sound Produced by H Bridge
Replies: 5
Views: 4330

Re: "Pulsing"/ "Knocking" Sound Produced by H Bridge

Not sure which pins the H-bridge uses, but if it's on PWM pins you may be able to implement crude microstepping yourself if you're feeling adventurous. Keep in mind that microstepping will reduce torque significantly.
by Things
Thu Jul 02, 2015 12:21 am
Forum: HBRIDGE: H-Bridge Motor Driver Shield
Topic: "Pulsing"/ "Knocking" Sound Produced by H Bridge
Replies: 5
Views: 4330

Re: "Pulsing"/ "Knocking" Sound Produced by H Bridge

Stepper motors will always produce noise, it's how they work. You'd either need to switch out to a different kind of motor, try and reduce the vibrations, or just deal with the noise. That said, the noise shouldn't be _excessive_. However, perhaps the reason the other drivers didn't make noise was b...
by Things
Sat Jun 27, 2015 3:45 pm
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 107
Views: 50077

Re: New beta release "DMD2" Library

Haven't tried myself but the Due is an ARM based board, perhaps the library only supports AVR? (well, the original post seems to indicate this is the case).
by Things
Sun Jun 21, 2015 7:01 am
Forum: 4x4x4 RGB Cube
Topic: Serial IR help
Replies: 8
Views: 3530

Re: Serial IR help

Not sure if the library you're using has support for interrupts, but it does require changes in the code as well as swapping the pins.
by Things
Sat Jun 20, 2015 11:17 am
Forum: 4x4x4 RGB Cube
Topic: Serial IR help
Replies: 8
Views: 3530

Re: Serial IR help

Actually, just looking at my Cube now it looks like it's just a 32u4 (der, it has USB built-in!). I just looked at the Cube schematic though and it looks like interrupts 0 and 1 are broken out to the SDA and SCL pins on the "Comms input/output" header and not used by the cube directly, so looks like...