Search found 1244 matches

by skimask
Sat Sep 24, 2016 8:35 pm
Forum: SparkFun Product Questions
Topic: soldering on ADXL362
Replies: 1
Views: 291

Re: soldering on ADXL362

<deleted>
by skimask
Sat Sep 03, 2016 11:28 pm
Forum: Projects
Topic: Ardumoto Overheats
Replies: 7
Views: 905

Re: Ardumoto Overheats

Do you have ANY idea whatsoever what the wiper motors voltage/current rating is? vs. what the motor driver can drive? ANY at all?
by skimask
Sat Sep 03, 2016 11:25 pm
Forum: PCB Design Questions
Topic: Optocoupler Circuit Overheating
Replies: 3
Views: 1278

Re: Optocoupler Circuit Overheating

Yep, operating completely normally. So...how much current is your circuit pulling from the 24v source? 7805 hmmmm... READ the datasheet, the whole datasheet, top to bottom, then READ it again. So far you didn't really mess up anything in the circuit, just in your overall assumptions on how things sh...
by skimask
Mon Aug 22, 2016 9:28 pm
Forum: General Chit Chat
Topic: Oscilloscope recommendation please
Replies: 1
Views: 2138

Re: Oscilloscope recommendation please

You'll need various bandwidths with various sample rates and various memory depths when working with various projects, not to mention various numbers of channels. With those various parameters, you can choose from various oscilloscopes. Catch anything out of that? It boils down to how deep Mom and D...
by skimask
Mon Aug 22, 2016 9:19 pm
Forum: General Chit Chat
Topic: In need of a EE
Replies: 3
Views: 2624

Re: In need of a EE

A hotmail email address?
Who does that?
by skimask
Mon Aug 22, 2016 9:13 pm
Forum: Arduino
Topic: SIMPLE ARDUINO CAMERA SETUP
Replies: 1
Views: 384

Re: SIMPLE ARDUINO CAMERA SETUP

1) Simple
2) Cheap
3) Good

Pick 2.
Can't have all 3.
by skimask
Mon Aug 22, 2016 9:12 pm
Forum: SparkFun Product Questions
Topic: Can MP3 be sent to SPI of Sparkfun MP3 Player ?
Replies: 2
Views: 513

Re: Can MP3 be sent to SPI of Sparkfun MP3 Player ?

Can uncompressed MP3 audio data be sent from Arduino board, by SPI, to Sparkfun MP3 Player shield instead of from the SD card on the Player shield? Instead of using SD card on Player board, I want to send the compressed MP3 data from a Particle Photon board on the Particle shield shield, by SPI, to...
by skimask
Mon Aug 22, 2016 9:10 pm
Forum: Projects
Topic: PIC Microcontroller
Replies: 10
Views: 1155

Re: PIC Microcontroller

If this is a school project, surely the "instructor" would know the answer to that simple question. The PIC18F4550 is a 'slave' USB device, not a 'host' USB device. Unless your 'digital blood pressure device' is a magical 'host' USB device that would be able to send data to a 'slave' device, no. Aga...
by skimask
Mon Aug 22, 2016 9:06 pm
Forum: Projects
Topic: some little help from you.
Replies: 2
Views: 498

Re: some little help from you.

Use a bunch of little delays and a counter in a loop while checking what needs to be checked vs. one big delay where you check what you need to check before and after aforementioned big delay.
So, you haven't tried everything.
Put your code inside tags.
by skimask
Mon Aug 08, 2016 2:51 pm
Forum: SparkFun Product Questions
Topic: Schematic plan of energy harvester
Replies: 6
Views: 599

Re: Schematic plan of energy harvester

Do you have any idea, the smallest foggiest of tiniest of ideas of exactly how much "energy" you'll actually "harvest" from 2 "piezo-benders"?
On a good day?
With perfect components?
With all the planets in alignment?
Any idea at all?
by skimask
Mon Aug 08, 2016 11:12 am
Forum: SparkFun Product Questions
Topic: Schematic plan of energy harvester
Replies: 6
Views: 599

Re: Schematic plan of energy harvester

What just happened?
by skimask
Sun Aug 07, 2016 9:19 pm
Forum: Arduino
Topic: human following robot
Replies: 2
Views: 517

Re: human following robot

I see the problem.
by skimask
Fri Aug 05, 2016 12:30 pm
Forum: SparkFun Product Questions
Topic: Battery Charging Help!
Replies: 3
Views: 395

Re: Battery Charging Help!

Assuming the battery isn't totally dead and sucking away all of the current supplied by the charger, and/or the charger is able to handle the current the 'dead' battery wants to draw as well as the circuit being powered....yes....
by skimask
Thu Aug 04, 2016 1:05 pm
Forum: SparkFun Product Questions
Topic: Battery Charging Help!
Replies: 3
Views: 395

Re: Battery Charging Help!

Try this... Get a car battery. Hook it up to a head light. Light is lit up. Battery runs down. Light goes out. Disconnect head light. Connect charger. Charge battery. Disconnect charger. Connect head light. Light is lit. While the head light is still lit, connect charger. Light is still lit right? D...