With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
POV Bike Display - ESP8266 + APA102
That's a beefy powersupply :P1) Yes, put it on the 3.3V line2) Not sure, it depends on how the powersupply is internally wired. I would keep them seperate and put an extra banana jack. Also, 18 A is already very high for the wiring, so it's probably not a good idea to actually draw that current :P3) You could, but 10 Ohms is probably fine4) Sure, as long as there is a significant load it's fine ^^Good luck!
There certainly is an explanation, electronics is not magic (although it sometimes seems like it) ;)First, in the case you omit the lm317: the power dissipation in the resistors is too high. You can calculate it: P = UI = U^2 / R. So let's say your potentiometer is at 0 ohms, that means you have a 360 ohms resistor between 37V and ground. So P = 37^2 / 360 = 3.8 Watt (!)Normal resistors only allow a power dissipation of about 0.25 Watt, so it will heat up and burn out. In the case you do connect the lm317, this shouldn't happen. Since 0 ohms on your potentiometer will give you 1.25V output, you power dissipation will only be 0.004 Watt. That means you made a mistake in your wiring. I would suggest to rebuild it, and take another look at the pinout of the part. I hope it helps, good luck!
Potentiometers always have 3 pins, and depending on how you want to use them you can use 2 or 3 of them.The value that is written on the potmeter (10k here) is the resistance you will measure between pin 1 and 3 on the image below. Pin 2 is called the wiper and will "glide" along the resistor. When measuring the resistance between 1 and 2, you will see that it changes between 0 Ohm and 10k Ohm. The same can be done by using pins 2 and 3. You have now made a variable resistor, which is exactly what we need.When using all 3 pins, you form a voltage divider, look on wikipedia for some more information.Good luck!
Using MIT App Inventor to Control Arduino - the Basics
I used the wires from the PSU itself, they are 18 AWG. Feel free to copy the design, that's the reason I shared this project :)
Hello!I'm glad you like the instructable :)It is possible that you don't have a pink wire. In that case, just don't use it :p It's not an issue.The -12V can be used if you want to power something with a so called symmetrical powersupply. Opamps often require +12V, GND and -12V. Connect it now, so you can use it if you need it in the future.Welcome to the wonderful world of electronics ;)
Build a CNC router
Anet A8 (Prusa I3) Auto Leveling Using NPN NC Proximity Sensor and Skynet3D V2 Firmware
555 Useless Machine
Solder Fume Extractor With Activated Carbon Filter
Thanks! I always try to make them as clear and fun as possible :) My nicest lego technic models are simply on display and I got this idea I couldn't resist to make :p
Be creative with your code ;)A very easy way would be to check if the signal has passed a certain threshold, then wait some time and check again. This can be done several times for more claps.
Use Your Tablet As Raspberry Pi Screen
This one: https://www.circuitlab.com/
Search for "boost converter"
How To Make Your Own Sugru Substitute
How to make Infinity Mirror Clock
Getting Started with Electronics
ESP8266 WiFi Module for Dummies
Only digital pins are used for input and output
In this pinout diagram you can see which pins of the atmega328p (the one most commonly found on arduino uno boards) correspond to the pins you use in the code. Good luck!
LED Persistance of Vision Globe
Hookup an LCD to an Arduino in 6 seconds with 3, not 6 pins
IKEA Infinity Mirror
From aliexpress :P
DIY BreadboardView Instructable »
Very cool! And awesome you managed to use IR with an attiny, I found the existing libraries don't work :/ but now you have the solution! :D
Neopixel Night Light
I2C between Arduinos
Globe Persistence of Vision
Harry Potter LEGO Flash Drive
DIY 1GHz* Active Probe For Under 20$**
Shark Fan (Solder Smoke Filter)
Arduino Password Unlock Door Security System
DIY Long battery life bicycle indicators
Practical Circuit Construction with Strip Board
Control ANY light or electrical appliance with you tablet or smartphone (wifi)
DIY CNC Router
ESP 8266 Wifi controlled Home Automation
Easy Joule Thief Soldering Project
Optical illusion mirror. (infinity mirror)
Giant 555 Footstool
The DIYLILCNC: Open-Source Plans For a Low-Cost, Easy-to-Build CNC Mill. (v1.0.2)
$20 CNC Machine
How to Make a Three Axis CNC Machine (Cheaply and Easily)
Raspberry Pi CNC Machine
Acrylic sheet RGB glowing Weather station with indoor/outdoor/forecast using ESP8266
How to make a Magic Mirror
Wireless Power Charger!
How to Make a Raspberry Pi Media Panel (fka Digital Photo Frame)
How to make a 3D printed PCB vise!
Make a simple optocoupler.
PI Edge Lit LED Plexiglass Light
LEGO SMD Resistor Storage
ESP8266 as a Microcontroller
Connecting ESP8266-01 to Arduino UNO/ MEGA and BLYNK
Convert a laptop screen into a smart screen.
Arduino IOT automation with ESP8266
Convert Your Old Laptop Battery Into a Power Bank
Drill Small, Precise Holes.
Beginner's guide to ESP8266 and tweeting using ESP8266
Heatless (cold) Toner Transfer for PCB making
Pizzabox Cyclorama - The Poor man's Studio
Cheap Arduino WiFi shield with ESP8266
Blüp: The Bubble Notifier
Tiny Load - constant current load
Making ESP8266-01 module breadboard friendly
Arduino Mega 8x8x8 RGB LED Cube
AVR Programmer Shield
Make your own SIMPLE 5x5x5 RGB LED Cube
Smartphone Photo Studio for #3DBenchy and tiny stuff
Homemade double-layer PCB with toner transfer method
Ultimate AIO, Totally Over-Engineered, Dremel/Rotary Tool Drill Press / Sander / Grinder / Router
Sound Activated Outlet
A fully 3D printable GlaDOS Robotic ceiling arm lamp
Control An Arduino With Your Phone
Arduino controlled light dimmer
DIY Constant current load
Turn your lights on with clapping?!
Business Card Phone Stand
Drill press for ~$20
IKEA Shelf Safe with Magnetic Key
Velcro Vehicle Cargo Stabilizer
Ultimate RGB Propeller Display
3D Print a Mini USB Vacuum Cleaner
Handmade Plexiglass Project Boxes from Scratch
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.