Chromebook Pixel 2013 and Cozmo

The examples and SDK for working with Cozmo are Python based. https://github.com/anki/cozmo-python-sdk/tree/master/examples/tutorials  We have a couple of Google Chromebooks, one is the 2013 Pixel and one a newer Pixelbook. With….

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Getting started with Cozmo

Cozmo is a little toy robot with a python SDK.   The setup is a little quirky, but nevertheless fun. The Cozmo app on the mobile deivce communicates with Cozmo….

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Electrical Applications, quiz 0001

Look at the following circuits. What will happen when the switch is turned on: Simple LED, resistor and battery 2. Simple LED, resistor and battery 3. Simple LED, resistor and battery….

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Electrical Applications, Components, Values and Units

Resistors https://en.wikipedia.org/wiki/Resistor   Resistors are measured in Ohms Ω. They are used to limit the current that flows through the circuit. Resistors mostly come in a fixed numeric. 1, 1.5,….

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Electrical Applications, Resistor Color Code

How do you identify a resistors value if you don’t have a multimeter available? Each resistor has a band of colors. These bands identify the value in Ω as well….

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Electrical Applications, 555 Timer

The 555 is our first steps into chips. The 555 is a timer chip, this means that it will ‘tick’ like a clock. We will use this to turn an….

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Electrical Applications, Potentiometer

A Potentiometer (pot) is a resistor that can be both fixed and varied, also known as variable resistors. A typical Potentiometer: https://www.adafruit.com/product/356?gclid=Cj0KCQjwu_jYBRD8ARIsAC3EGCJ5JS4kSB1WgJjxSOwnekQ925ZnsxyONZT5ODQkNDcvyr0QBmkxM20aAgm7EALw_wcB    

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Electrical Applications and the Transistor

Looking at Electrical Applications we will focus on various aspects to learn. This one covers the transistor. In its simplest form, a transistor acts like a switch. Electricity will flow….

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NPM Raspberry Pi Zero onoff and Closures

Using a Pi Zero to monitor some input pins, a change on the input will trigger an event. This is using NPM onff (https://www.npmjs.com/package/onoff). The example code with a button….

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Pi Zero W read GPIO with nodejs 10

The Pi Zero W uses the arm6l architecture. For node v10 the zip file can be found in this directory, I would imagine future versions would be follow a similar….

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