Particle + Raspberry Pi

Do not continue without reading! Please note that the Raspberry Pi integration with the Particle Cloud is currently in beta. We know you're eager to get started (we're excited too!) but you won't be able to complete all the steps below before you've received your beta activation email. We will be provisioning access to the beta in the upcoming weeks on a rolling basis. Upon open release of the Raspberry Pi ...

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How to Use an Off-the-Shelf 4G USB Module with Raspberry Pi

The use case is pretty simple: you want 3G/4G on your Raspberry Pi because you want to access it when there is no WiFi. You could use an AT&T starter kit 3G shield but it seems more complex. I also believe it is locked to AT&T. The $50 Sfera Labs Sierra AirCard 320U USB modem seems like a viable option because it's unlocked, making it quick and easy to set up. It should work anywhere in the world ei ...

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Driving LEDs

The LEDs (Light Emitting Diode) are diodes whose basic characteristic is the ability to emit light when they are passed through a current that flows from P to N region. At each recombination between the charge carriers (electrons and holes), on PN junction region, a photo emission is generated, and the total quantity of emitted photons, and therefore the light intensity, is proportional to the current inten ...

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Three Great Projects Using a Raspberry Pi 3 for the Summer

The Raspberry Pi sounds like a dessert for math lovers but it's really a computer the size of a credit card that has sold eight million units since its inception four years ago. Owing to its low cost (Rs. 3,075) and diminutive scale, the Pi has long been a tinkerer's dream, with people setting it up in a number of innovative ways, from using it as a dedicated Minecraft server, to powering your very own smar ...

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Raspberry Pi industrial HAT features RS-485 and 1-Wire

The “Monarco HAT” industrial interface for the Raspberry Pi offers analog, digital, RS-485, and 1-wire I/O, plus a power supply, watchdog, and RTC. Czech-based REX Controls has passed the halfway mark on its Indiegogo funding journey for a 99-Euro ($126) Monarco HAT industrial interface add-on for the Raspberry Pi, with 20 days days left. Shipments are due in September. The Monarco HAT combines an industria ...

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Design a romantic PCB using a free PCB design tool – EasyEDA

Have you ever tried to design a romantic PCB for your lover or an interesting PCB for your children or friends on special day? Why not? PCB also could be an amazing gift which comes from your creativity. Here I’d like to share a romantic and practical PCB to you.   This is my PCB Board. It looks very simple but interesting, meaningful, romantic.....   You can access this interesting project here: ...

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How to use soft PWM in RPi.GPIO 0.5.2a pt 2 – led dimming and motor speed control

In part 1 of this series, we looked at the basic commands for using software pulse-width modulation (PWM) in RPi.GPIO 0.5.2a and higher. In this article we’ll get a bit more hands-on and into some practical applications for it. It’s all very well being able to make nice square-wave pulses on an oscilloscope, but what’s it actually useful for? Our servo said? EEEEH AAAAH I tried using RPi.GPIO soft PWM with ...

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Raspberry Pi with MCP3008, TMP36, SQLite and lighttpd

Introduction I’ve found a few posts out there that cover connecting a TMP36 (analogue temperature sensor) to the Raspberry Pi via the MCP3008 ADC (Analogue to Digital Converter) but I wanted to expand on the thing that I found confusing – the associated Python code that interfaces with the MCP3008.  By using the MCP3008 datasheet, some Python help pages and the official documentation for the interface libra ...

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Canakit raspberry pi complete starter kit

  The Canakit arrives in a plain white cardboard box, but inside it has a lot of parts and components in glossy cardboard packaging. The kit comes with a Raspberry Pi 2 B model (the most advanced model) and a fancy black plastic case that is both sleek and solid. The kit contains a 2.5A power supply, a 150mbps 802.11n USB WiFi adapter, and a high-quality 6-foot HDMI cable. It also contains a breadboard ...

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Best mini wireless keyboard for raspberry pi

Some wireless keyboards don't work with raspberry pi because their drivers are not available in RPI distro. Here is the list of few top best mini wireless keyboards for raspberry pi which really works. iPazzPort Wireless Mini Handheld Keyboard with Touchpad Combo for Raspberry Pi Handheld for Smart tv/HTPC/XBMC/Raspberry Pi, sit back on sofa/bed to control Smart TV and PC(can't power on/off),do not need to ...

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