Search found 1698 matches

by Valen
Sat Jun 09, 2018 4:06 pm
Forum: Projects
Topic: Home Project Help
Replies: 4
Views: 95

Re: Home Project Help

Come up with those errors and code then.
by Valen
Fri Jun 08, 2018 7:28 am
Forum: Projects
Topic: Home Project Help
Replies: 4
Views: 95

Re: Home Project Help

That Rainbow routine is just a fancy way of blinking a led. And the IR code is also pretty much the Blink sketch. If you want to have the IR code stop the Rainbow code then I suggest you start looking at how the Blink-without-delay sketch is built.
by Valen
Thu Jun 07, 2018 6:33 am
Forum: Arduino
Topic: PulseIn stopped working
Replies: 1
Views: 86

Re: PulseIn stopped working

What code? What controllers? What motors? Please provide links.
by Valen
Thu Jun 07, 2018 6:13 am
Forum: SparkFun Product Questions
Topic: SX1509 combined with HX711
Replies: 2
Views: 84

Re: SX1509 combined with HX711

No need to post 2 same/similar questions in the same forum. It confuses the discussion if it is in multiple places. Remove one thread, and post an example of the readout values in the other. I'm guessing you just receive gibberish because you are not properly bit-banging the HX711 pins with the SX15...
by Valen
Thu Jun 07, 2018 5:37 am
Forum: SparkFun Product Questions
Topic: SparkFun Sunny Buddy doesn't charge more than 4v
Replies: 7
Views: 101

Re: SparkFun Sunny Buddy doesn't charge more than 4v

Providing specs and a wiring diagram of the panels would probably add to the meaningfullness of the answer.
by Valen
Thu Jun 07, 2018 5:21 am
Forum: Projects
Topic: Rocket accelerometer
Replies: 13
Views: 209

Re: Rocket accelerometer

Be more precise in what worries you about the (over-)scaling in the former. And why a single axis is a bad idea for the latter. You can always mount 3 in perpendicular axis if you can manage it spacewise. Besides, both have analog outputs. So 'resolution' doesn't really apply, you probably mean sens...
by Valen
Thu Jun 07, 2018 4:57 am
Forum: SparkFun Product Questions
Topic: SFEMP3 Shield Acting Kooky
Replies: 2
Views: 47

Re: SFEMP3 Shield Acting Kooky

I would look into the code of that library and see what are the conditions for that message to appear. Then see how this relates to you using a 9 volt supply. As that seems to be the difference in regards to conditions. Technically speaking you are using a different function, a overloaded function w...
by Valen
Thu Jun 07, 2018 4:23 am
Forum: SparkFun Product Questions
Topic: GPS logger conflict with I2C barometer
Replies: 7
Views: 97

Re: GPS logger conflict with I2C barometer

Double thread: https://forum.sparkfun.com/viewtopic.php?f=14&t=48221 Joan, please don't do that. It creates more confusion to have multiple answered threads. Many frequent repliers/support volunteers use the new reply/unanswered filters of the forum. Don't worry, your question will be viewed if plac...
by Valen
Thu Jun 07, 2018 4:09 am
Forum: SparkFun Product Questions
Topic: GPS logger conflict with I2C barometer
Replies: 7
Views: 97

Re: GPS logger conflict with I2C barometer

Why didn't you provide the error statements in the compilation log (as a result of adding the pressure.begin)? That might explain that there is something missing/wrong in your code. And if that is al ok, how exactly did you determine that the program failed? BTW, please enclose your code in [ code] ...
by Valen
Wed Jun 06, 2018 6:10 am
Forum: Projects
Topic: Sound velocity in solids
Replies: 7
Views: 151

Re: Sound velocity in solids

The Arduino's ADC cannot measure voltages as quick as required (microseconds). Few microcontrollers actually can. Iirc ADC clockrate for the Uno/Micro/Nano's is at best 1/26th of the clock rate. And then there is the issue of storing and analysing the data that takes even more time. But even worse t...
by Valen
Wed Jun 06, 2018 5:48 am
Forum: Arduino
Topic: randomSeed function doesn't work
Replies: 2
Views: 70

Re: randomSeed function doesn't work

Is a internal pull-up resistor enabled in the code?
by Valen
Wed Jun 06, 2018 3:40 am
Forum: SparkFun Product Questions
Topic: ESP8266 thing - Not connecting to Wi-Fi when power is lost
Replies: 1
Views: 97

Re: ESP8266 thing - Not connecting to Wi-Fi when power is lost

TLDR: Use the switch. It's not a bug, it's a feature. Removing a power supply connection does not mean that the device runs out of power. There are capacitors that may not drain quickly enough. In this case the voltage regulator has an enable pin with is connected to that switch. If the enable pin i...
by Valen
Tue Mar 27, 2018 2:07 pm
Forum: SparkFun Product Questions
Topic: Slip Ring USB Camera Problems
Replies: 7
Views: 901

Re: Slip Ring USB Camera Problems

What voltages do you measure on D+ and D- and Vcc (5 volt from USB) against GND with connected slip ring. And a second time with webcam plugged in? [EDIT: You do also 'slip through' the 5 volt and GND wires right? Not just D+ and D-. Those always need GND for sure. [EDIT 2: what current is drawn by ...