ESP8266 – Arduino wireless communication


ESP is a wonderful module – it can connect to wifi networks, create a webserver (accepting connections) and is very very cheap ! Its a lot more than this – just google it and you’ll find out.
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Raspberry PI Banggood’s 3.2” TFT display configuration


Image from “The Elephants Dream” by Blender Foundation

A few months ago i bought a 3.2” TFT display from banggood for my Raspberry PI. After a few days trying to put it to work, here’s how. My approach doesn’t uses any custom kernel

First, a few specs for the TFT

Display module: flexfb, fbtft

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Raspberry PI DHT22 humidity sensor with a LCD 16×2 display – Weather station

For a workshop I’m going to give about Raspberry PI and how to interact with the outside world, I thought for a start, why not something simple like some kind of a Weather Station.

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How to connect FT232RL FTDI USB To TTL Serial Converter to MinimOSD MAVLink OSD

I bought a new MinimOSD MAVLink OSD from Bangood to use with my CC3D Flight Controller and had trouble to connect it to the computer. After a while, I managed to have success. Here’s how

Mine is green

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Bluetooth communication between Raspberry PI and Arduino

This post is part II of a III part series of posts related to Arduino and Raspberry PI Wireless Bluetooth communications.

  • Part I
  • Part III (coming soon)

In another post, I’ve shown how to communicate with Arduino through Bluetooth. Arduino is a very nice platform for electronics, but sometimes, we need a full computer for more expensive workload.

Here, I’ll show how to share information between the Arduino and the Raspberry PI. Imagine that you have the Arduino taking measurements and send them to the Raspberry PI to work on the data – a web server for example.
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Arduino Bluetooth Wireless Communication

This post is part I of a III part series of posts related to Arduino and Raspberry PI Wireless Bluetooth communications.

For a project I’m working on, I was searching for a method of sharing information between the Arduino and a Raspberry PI and Bluetooth came to mind. So, I start exploring.

Here’s a small example of a Wireless connection between Arduino and an Android Phone using Bluetooth.
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Pixel Pal Chip

Soldering Sunday Pixel Pal: Chip – Connect to Raspberry PI


I’ve just received Chip – The Pixel Pal from Soldering Sunday.  It’s a very nice litte project. And I love the LEDs. They’re so biggggg ! :)

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Raspberry PI and Adafruit’s Neopixel Stick

For a project i’m working on, I had to connect a Neopixel Stick to my Raspberry PI – Although the Adafruit’s Learning Center is quite good (is really very very good), and the Neopixel Uber Guide is extensive, i could not find any information about the wiring of the Neopixel Stick.
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Give your Raspberry PI the power of Speech with Adafruit’s max98306

For a project I’m working on, one of the objectives is that the RPi be able to “speak” – just to have some fun.

The RPI can output audio through HDMI and the 3.5mm audio jack. Since I’m going to use the RPi for a small robot, the HDMI audio capabilities are of no interest. So, it only leaves the 3.5MM audio jack, but there’s a problem. The audio is not amplified. For some headphones it’s fine, but for a talking robot, the audio volume is just to low.
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Arduino L293D DC motors control

A long time ago, i wrote a little tutorial on how to use a L298 Dual H-bridge motor driver, but i thought i could go further and this time I tried with a L293D chip.

The L293D Chip is a Dual H-Bridge Motor Driver for DC or Step motors. It can handle two Motors or one step motor. It can power motors until 36V and 600mA of steady current  – Max of 1.2A.

The chip is easy to use and takes little space

In this tutorial will see how to use it to power 1 or 2 DC Motors

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