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Showing posts with the label espruino

A Lesson in LoRa Module P2P Standards (or the Lack Thereof)

I got a handful of LoRa modules from Reyax a while back, the RYLR896 model based on Semtech SX1276 chips. Instead of using an SPI interface they operate over UART using a small set of AT commands. This made them easier to work with since I didn't have to dig too deeply into a bunch of SPI registers and Semtech specs and they communicate between one another really well. My Espruino JS module for them is available here , which I've used in a few of my YouTube videos. And more recently I've written a MicroPython module for them here .   (A pair of Reyax RYLR896  modules) But, always being on the lookout for different boards and platforms I eventually ended up with a few Maduino LoRa boards. These are cool because they have an Arduino-compatible ATmega328 and the same Semtech LoRa chip (via an RFM95) both integrated on one board. They weren't compatible with Espruino or MicroPython though, and they used the SPI interface instead of AT commands so I knew I would need to lo

Arduino-friendly 240x320 LCD Display Tutorial (ILI9341)

Have you ever needed to add a UI to any of your embedded projects? For instance, maybe you want to display a sensor reading graph or build your own handheld gaming system. In this video I'll take a look at some cheap 240x320 color LCD display devices that you can add to almost any microcontroller or Single Board Computer project.

Build your own IoT Device Hub | Bluetooth | LoRaWAN | Tutorial

In this video I show how easy it is to build an Internet of Things device hub using only a Pixl.js and a little bit of Javascript code. To demonstrate I control a few devices using Bluetooth Low Energy and LoRa ( Lo ng Ra nge radio).

Getting Started with GPS Modules | Tracking Device | Tutorial

Today I took a GPS module and a microcontroller for a walk in the park and wrote a few lines of code to show my GPS coordinates in real-time.

Concurrency on the Internet of Things (Arduino, MicroPython, Espruino)

In this presentation I talk about what concurrency actually is, why it matters for Internet of Things applications, and which platforms are best at handling it.