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Arduino Dot Matrix Game Console
Yeah dude no problem.
No problem. The 10uF capacitor is polar, all others are non-polar.
Thank you for reading!
The standard 1/4 Watt resistors will be fine.Capacitors aren't really described in wattage capability. The 10V capacitors should be fine.
The standard 1/4 Watt resistors will be fine.Capacitors aren't generally described in wattage capability. The 10V capacitors should be fine. Peak current shouldn't be a problem considering the pulse sensor is pretty low current device.
Homemade Arduino Friendly Pulse Sensor
The Assembly of Sir Pigglesby
Froggy: the 3D Printed Ball-jointed Frog Doll
The Scarab Beetle Box Assembly Instructions
Do you sell these at all?
Please enter this into some contest so I can vote for it. Thanks.
DIY Arduino Watch Sport 2.0
I like this a lot. Nicely done. Why did you choose to put the MAX30100 on the side and not on the bottom?
3D Printable USB Air Purifier / Fumes Extractor
This is really elegant. I like it.
How to Desolder Headers
How to Solder Headers Straight
If you keep your iron right above the solder's melting point and hold the iron on the pad for only a few seconds at a time you'll be fine. This is the way I solder all my headers. Now, if you were using a hot air gun, that would be a different story....
Would that be too much solder paste for an SSOP or QFN package?
This Instructable will show you how to do that.
Woot! Woot! First Instructable. Congrats dude!
ATSAMD21g18 Bootloader With J-link Debugger
DIY Light Bulb Bugs
Fun idea. Can it teach me to dance like this?
Fun idea. Can it teach me how to dance like this?"Five-Year-Old Tavaris and His Terrific Moves Are Back!" <" width="500">
Yeah no problem.
Did you manage to get it working?
I've stripped many screws. I just left them. Haha. Thanks for the tips. These will come in handy for sure.
5 Ways to Remove a Stripped Screw
Beautiful. Great work.
I love the detail in your 'ible and the chicken looks great.
Mastering the 2016 Published Original KFC Recipe copycat
These look delicious.
How to Make Rolos - Easy!
Marshmallow Fluff Recipe (Copy Cat)
Lemon Raspberry Cheesecake
This is pretty cool.
These instructions are very well detailed. Thanks for the effort you put into this.
There is quite a bit of feedback with this. I added a few low pass filters <https://www.circuitlab.com/circuit/639ev6/square-to-sine-wave/> to help clean it up a bit and that seemed to help. Also, with the microphones I was using, I had to speak very closely into the mic (within 5mm). And that made a huge difference.
Hmmm.... you may actually want to ground the pin the button would be attached to on your other breadboard. If it's left floating, that could be a problem. But you're output is telling me that the nRF24 modules aren't connected correctly. Also try connecting a 0.1uF capacitor across Vcc and GND on your nRF modules.
I like the enclosure design. It looks great.
Yeah. The circuit I suggested before should do the trick.<https://www.circuitlab.com/circuit/639ev6/square-to-sine-wave/>You could use a notch filter. This links to a 60Hz notch filter, so you will have to modify the components to change the center frequency. <https://www.circuitlab.com/circuit/cef86z/60hz-notch-filter-better/>
Oh also realize that there are much more appropriate ways to drive a speaker. But if you are using simple headphones, a standard op amp will do.
It has to do with how the sound is generated. It's using square wave pulses from the digital pin. Square waves have a ton of harmonics, which cause the buzzing noise.
Yeah I had that problem too. I was able to suppress it a bit using a few low-pass filters. <https://www.circuitlab.com/circuit/639ev6/square-to-sine-wave/>
Wow great first Instructable. I voted for you in all the contests. Lol. Good luck and keep them coming.
On another note, I notice that you're a researcher. I love seeing fellow researchers involve themselves in the DIY community. I think it's great for science and Open Source.
Acoustic Tractor Beam
I'm not sure why he chose tantalum capacitors over ceramic.
You could just use ceramic capacitors instead of tantalum ones.
Best Instructable of 2016 period.A Purdue EE Senior Design team used your Instructable to make a BB8 themselves. Good stuff.
You should be able to go directly to an analog input. Just make sure the voltages are positive.
Increase the power supply voltage would be the quick and dirtiest way. A few others might be to change R2 and R3 to increase the bias voltage at the base of that transistor. Or maybe decrease R4. There are a few others, but again, it comes down to increasing the collector current of the transistors which would happen by change the collector resistance, increasing the base voltage/current, or by increasing the power supply voltage.
Because the LED is still hitting the photodiode which produces a current.
Happy Birthday Tune using Circuit Playground
Cool! This is super helpful for my next research project. Thanks a bunches.
The Ultimate PVC Quadcopter
This is pretty cool dude. I'm glad the 'copter is pretty durable too.
3d scan anything using just a camera
Very good looking boards.
Touchscreen Wall Mounted Family Sync & Home Control Panel
Great point. Thanks for posting this. For a small battery, 9V, I would say the risk is relatively minimal. Plus mains is AC which crosses the body a lot easier due to the capacitance associated with the body model and electrode-electrolyte interface. Oh and the obvious fact that 110V AC is way higher than 9V from a battery. Lol.
Great point. Thanks for posting this. For a small battery, 9V, I would say the risk is relatively minimal. Plus mains is AC which crosses the body a lot easier due to the capacitance associated with the body model and electrode-electrolyte interface. Oh and the obvious fact that 110V AC is MUCH higher than 9V from a battery. Lol.
What results? You may have forgotten to post something.
MIDI Drum Machine Costume
Cool stuff dude.
Probably not. I would get some BJTs. You can get them pretty cheap on Amazon or eBay.
You want to use the one without the 0.1uF capacitor. Also, the Fritzing picture is incorrect, but I can't change it. I'm running into errors with the Instructables editor.
According to folks over at Arduino Info Wikispaces, some people have reported up to 1km, but the expected range is more like 100 meters with the standard range modules.https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo
how to shave with an axe
cookie monster rug
This is great. Nice work.
The cookies are my favorite part. Lol.
You're welcome dude. Thanks for the compliment.De nada. Aprecio su cumplido!
Probably so. I didn't see it anywhere either.
I replied to your direct message. Check your inbox.But for everyone else's benefit, it should be okay. I would suggest a dual supply op amp like the LM741 or the LM358 instead of the MCP6002. If you are familiar enough with op amps, you will have to appropriately bias the transimpedance amplifier to prevent "negative" voltages. If that doesn't make any sense, go with the LM741 or LM358.
I found that getting a specified frequency given the author's proposed hardware setup is quite difficult. I end up getting whatever frequency is not broadcasting very strongly in my area. Just try scanning through all AM and FM frequencies and turning up the gain on your transmitter.
It worked fine. I couldn't specify a transmit frequency, but I could pick up the signal on a few open channels.
"With U Smart Sole" DIY GPS Embedded Smart Shoe sole #MITBetterWorld
World First! DIY Real 4k (UHD) Beam Projector
Awesome! Add a picture!
Great work! Would you happen to have an example image using this technique that you can share?
How to convert medical scan data into a 3D printable model (also, dinosaurs!)
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