Member Since: September 7, 2010

Country: United States

A walk-through of building what turned out to be a complicated prop.

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We all know that women are not only a minority in technical fields, but are often not encouraged to go into such fields. Here are a few ways to encourage and support the girls/women in our lives who are interested in technical fields.

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TB6612FNG Hookup Guide

September 29, 2016

Basic hookup guide for the TB6612FNG H-bridge motor driver.

SD Cards and Writing Images

June 4, 2015

How to upload images to an SD card for Raspberry Pi, PCDuino, or your favorite SBC.

Installing an Arduino Bootloader

December 4, 2013

This tutorial will teach you what a bootloader is, why you would need to install/reinstall it, and go over the process of doing so.

How to Use a Breadboard

May 14, 2013

Welcome to the wonderful world of breadboards. Here we will learn what a breadboard is and how to use one to build your very first circuit.
  • Also, the configuration of the pins on the SAMD21 is nice giving you a few more options when it comes to configuring the remaining pins that are broken out (more analog, serial, etc.)

  • Yeah, it is on my list to fix, just not super high priority. Maybe this week.

  • Good point. Also, if they find the written credentials next to the routers, they’ve found the router and can just hard wire in. Having the written credentials doesn’t really increase the consequences.

  • While it probably depends on the 3D printer or CNC machine Raspberry Pis have become popular for running 3D printers and CNC machines. In most cases the design is still done on another system but the files can be run either by sending them over the network to the Pi, or plugging in a USB drive or SD card. But the Pi might be a bit slow to run most CAD software well enough to do design work on it.

  • You should definitely be able to do that. The connections will depend on what type of wireless you want to do and how. The easiest is probably a bluetooth/wifi module that you can connect over the hardware serial ports on the board. The other (and much trickier) option is to use the OTG feature on the board and connect a USB boothtooth/wifi dongle. In this case you will probably end up writing ‘drivers’ for it, but it is also possible someone has already done it. Look into the Simblee board, the ESP8266, nRF boards, and the Bluetooth Mate as a few cheaper wireless options. If you have any other questions feel free to email our techsupport department.

  • Thanks, fixed

  • That depends on a lot of things such as how you have them configured (series, parallel, each on individual I/O pins), as well as how bright you want them. Most LEDs can not handle more than 20mA of current. Assuming 5V (even though you should technically take the forward voltage into account) you can calculate the resistance needed to keep the LED from getting more than 20mA. But we are also assuming that your power supply is able to put out more than 20mA, you aren’t running them in parallel where the current is split between different LEDs etc. 20mA is also the maximum current, often you can’t tell the difference between 20mA and 10mA, and lower than that becomes dimmer but not unusable. Also keep in mind that these already have a 100ohm resistor on them, which was calculated for 5V so you shouldn’t need to add your own anyway.

  • Sorry, especially when there are more than one and/or ways to change it, it can be a bit much for the product description. Our current standard does have it listed on the schematic so it shouldn’t be buried too far.

  • A handful of people do try to read all the comments, but but if you need answers to technical questions (from SparkFun and not the community) you are better off directly emailing techsupport@sparkfun.com.

  • This is just the board, it does not come with a power cord or a USB cable. Check the recommended products if you need either.

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