Building an IVR with Twilio and Node-RED

From nootropicdesign.com 4 years ago in Blogs

Project source code at GitHub: node-red-contrib-twilio-ivr Twilio is fast becoming an important part of Internet’s communication infrastructure. What is Twilio? Twilio is a developer platform that allows you to add capabilities like voice, video, and messaging to your applications. This project uses the Twilio Programmable Voice APIs to bridge the...

Articles from Nootropic Design Project Lab

Swarm vs. Iridium For Satellite IoT

From nootropicdesign.com 10 months ago in Blogs

Using Satellite for IoT If you are involved in building Internet of Things solutions for industry, you are probably familiar with radio technologies that connect IoT sensors to the Internet: WiFi, cellular, LoRa, etc. What about satellite connectivity? Wifi or...

Laser Show Motor Controller

From nootropicdesign.com 3 years ago in Blogs

Here’s a fun idea I had while quarantined during the 2020 pandemic. I have a bunch of these cheap laser modules that can easily be driven from an Arduino with 5V, and they only draw 20mA of current. I also...

Iridium Satellite Signal Monitoring

From nootropicdesign.com 3 years ago in Blogs

Project source code at GitHub: iridium-signal-strength-monitor In a previous article, I wrote all about Iridium satellite communication for IoT projects using an Iridium modem and simple Arduino technology. However, when trying to send a message to a satellite constellation, you...

Automated Weather Satellite Ground Station

From nootropicdesign.com 4 years ago in Blogs

Project source code at GitHub: wx-ground-station This project will show you how to create a fully automated ground station that will receive and decode NOAA weather satellite images and upload them to your own website served from an Amazon AWS...

Iridium Satellite Communication with Arduino

From nootropicdesign.com 4 years ago in Blogs

When deploying a microcontroller-based IoT solution or just doing experiments gathering data in the field, you often need a way to get the data back to your home base or to the cloud somehow. You’ve probably used WiFi, maybe dabbled...

Arduino Audio Hacker Realtime Voice Changer

From nootropicdesign.com 4 years ago in Blogs

Here’s another fun but simple project using the Audio Hacker shield for Arduino. This is a realtime voice changer, which is an improvement upon the original voice changer example I provided with the Audio Hacker library. This project uses a...

Arduino Audio Hacker Realtime Reverser

From nootropicdesign.com 4 years ago in Blogs

Here’s a fun project using the Audio Hacker shield for Arduino – a realtime audio reverser! This program records the audio input to the Audio Hacker’s memory but plays it back in reverse. The “play head” jumps ahead a bit,...

Arduino Shield for CAT M1 and NB-IoT Modems

From nootropicdesign.com 4 years ago in Blogs

LTE CAT M1 (sometimes called LTE-M) and NB-IoT are both exciting new cellular technologies targeting IoT applications. While there are many modems being built with this new technology, there are not many choices for hobbyists. There are a few Arduino...

LoRaWAN Networking Part 2: Using End Devices

From nootropicdesign.com 5 years ago in Blogs

In part 1 of this series I showed how to set up a simple LoRaWAN gateway, and in a previous article described a simple but powerful LoRaWAN-capable end device that I designed. Now I’ll show how these devices can be...

LoRaWAN Networking Part 1: The Gateway

From nootropicdesign.com 5 years ago in Blogs

I have been playing with LoRa modules a lot recently (see projects LoRa Weather Station and LoRa Mesh Networking) and even designed my own LoRa development boards. LoRa is an easy way to achieve low-power, long range radio communication with...