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Arduino Projects

5 Posts authored by: ralphjy Top Member
I wanted to test connecting the Nano RP2040 Connect to my RPi4 MQTT server by publishing temperature and humidity data from a BME280 sensor.  I figured that this should be fairly easy since I've already used the BME280 with another RP2040 board - the SparkFun Pro Micro RP2040 and I've used my MQTT server with multiple ESP32 devices.   Of course, the devil is in the details...   I stayed within the confines of the Arduino IDE hoping that it would makes things simpler, and it did, ...
Continuing my journey with the Nano RP2040 Connect, I'll try connecting with and displaying data on the Arduino IoT Cloud.  I'll admit that I don't use the Arduino IoT Cloud much.  I prefer local data processing and storage.  I have an RPi4 dedicated as an always on Home Controller and MQTT server.  The last time I used the Arduino IoT Cloud was with a MKR1010 back in March 2019.  The User Interface is a lot more polished now, but the limits of the Free Plan are still ex ...
It seems that when it comes to machine learning on embedded devices that I discover something new almost every day.  I just got a Nano RP2040 Connect and one of the featured tutorials is "Using the IMU Machine Learning Core Features".  The Nano RP2040 Connect uses an LSM6DSOX IMU module.  I was aware that ST IMUs have the capability to generate interrupts based on events such as free-fall, single-tap, and double-tap, but I hadn't heard of the Machine Learning Core feature that is ...
For my Arduino Day 2021 Project I built a controller for my solar powered crawlspace vent fan.  I provided an overview of the project in a previous post - Arduino Day 2021 Project Intro .   The following documents my implementation.   Bill of Material:Product Name Manufacturer Quantity Arduino Nano 33 IoT Arduino 1 LM2596 Buck Converter Module 1 HW-803 5V Relay Module 1 BME280 Temperature Sensor Board 2 M5StickC Plus M5Stack 1 Raspberry Pi 4 2GB Raspberry Pi 1 SPDT Slide Sw ...
I thought I should provide a brief overview of my project that I'll submit for Arduino Day.  Tariq sent me an Arduino Nano 33 IoT to use in my project.  Thanks Tariq!  I was a bit surprised that it was shipped directly from Farnell in the UK, but I'm guessing there wasn't any US stock - probably a pandemic side effect....   A few years ago the Energy Trust of Oregon was offering incentives to install upgrades to reduce energy usage and I took the opportunity to add thermal r ...

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