Resources – 42 Bots

A circuit to use 2 single cell li-po / li-on batteries in series and charge them in parallel

Stan — Sun, 11 Jun 2017 18:23:42 +0000

I was looking for an option to create a circuit with a switch, so I can use two single cell li-on Nokia cell phone batteries in series, but charge them in parallel through a USB charger. The idea is to …

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Replacing a damaged Arduino Uno voltage regulator

Stan — Fri, 31 Oct 2014 04:39:14 +0000

While testing a new circuit on a breadboard, my good old Arduino Uno suddenly released its “magic smoke” with a loud pop and stopped working. On a closer inspection, I saw that a small crater had appeared on the 5 …

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Soldering tutorials, tips and tricks

Stan — Wed, 18 Jun 2014 18:57:56 +0000

Breadboards and hook-up wires are great for prototyping and testing out basic circuits. At some point though, you will want to create something more permanent and robust. Robots move around, bump into things, shake and vibrate and wires tend to …

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Arduino program / sketch upload speeds

Stan — Sun, 25 May 2014 04:25:33 +0000

I am working on circuit that will allow me to program my Arduino boards (I have an Arduino Uno and a couple of Arduino Pro Minis) over a wireless Bluetooth connection. I am planning to use my cheap and easy to find …

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Free Arduino reference guide

Stan — Sat, 24 May 2014 21:57:06 +0000

Erik Verberne teaches Information and Communication Technology (ICT) in Netherlands and looked into the Arduino platform in an attempt to enhance his department’s curriculum. He diligently documented his research and is now sharing it with the community. The result is …

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Shift registers: add more digital I/O to your Arduino

Stan — Sun, 13 Apr 2014 22:35:33 +0000

Shift registers are useful chips that can add more outputs or inputs to your micro-controller. The 74HC595, for example, provides 8 additional digital outputs that can be controlled with only 3 Arduino pins. Additionally, you can “daisy-chain” multiple shift registers to …

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Simple Android apps with App Inventor

Stan — Thu, 23 Jan 2014 13:01:55 +0000

App Inventor provides a fast and easy way to build simple apps for Android phones and tablets. It is targeted primarily at those of us with limited, or no experience in Android development. App Inventor has a fairly intuitive graphical …

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Free course: Artificial Intelligence for Robotics

Stan — Fri, 25 Jan 2013 15:59:17 +0000

A free, on demand course offered by Udacity. Definitely worth checking out… Course Summary: “Learn how to program all the major systems of a robotic car from the leader of Google and Stanford’s autonomous driving teams. This class will teach you …

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