WordPress on Godaddy can’t send email to its own domain
After making a new wordpress site on my shared Godaddy host I fought an issue for hours where WordPress admin and ninja […]
Author: jhottell
Using Microsoft SQL Server With Node-Red and MQTT
SQLServer Node-Red and MQTT is awesome for real-time data, but what if you want to store and retrieve messages? Its rather straight […]
What to do when Node-Red Flows dissapear
I wanted to install a SSD on the Windows 10 desktop that my Node-Red ran on and ended up reinstalling windows. I […]
DIY Arduino RC Mars Rover
Mars rover remixed and inspired by bolbots mars rover on Thinigverse. http://www.thingiverse.com/thing:1583399 The rover uses an Arduino 101 for brains, BLE for […]
DIY Kossel XL RepRap 3D Printer Build
Kossel XL 2020 RepRap I used my first RepRap Mendel Prusa 2 to print my Kossel Mini. The Kossel Mini has been […]
Intel Arduino 101 BLE Blynk Tank
Intel Arduino 101 based tank with BLE and Blynk! This project uses the Intel Arduino 101 board that has a built […]
Detecting Well Liquid loading with, Azure IoT, ML, and Pi
Overview Legacy IIoT devices can be modernized utilizing edge of network devices to send data to the Azure IoT hub and Machine […]
Hackster MQTT Presentation and Demonstration
The August 2016 DFW Hackster MQTT meeting was a blast. Here is a link to the online presentation. https://sway.com/DpyBV3JjNYoTFrsx If you check […]
Launch Node-Red On Startup With a Batch File
I want Node-Red to start up (and other command line programs) when Windows 10 starts. Batch files are a simple way to […]
Custom Cortana MQTT Commands
Cortana can easily be extended to aid you with your DIY home automaton projects. In this example Cortana sends MQTT commands […]
DIY BUBBLE OVERKILL!!!
Homemade bubble machine complete with variable speed bubble wand, variable speed fan. PID loop controlled heaters to heat the air to give the bubbles […]
TI LaunchPad MQTT I/O Demo
This demo connects two TI LaunchPad devices together using MQTT. I have every intention to add other devices to the mix like […]
HC-21 Simple Wifi Serial for Arduino Tutorial
The Simple Wi-Fi HC-21 module is a meager $10-$15 bucks on ebay right now. It is a simple Wi-Fi serial port server […]
Arduino error: expected unqualified-id before numeric constant
error: expected unqualified-id before numeric constant This Arduino IDE error blew my mind for a while, come to find out it can be […]
DIY Arduino Mini BMO
Arduino Mini BMO BMO from Comedy Central’s Adventure Time is adorable, if only someone would make one that can walk! Atleast we […]
X10 Control Using Arduino, Modbus, and ScadaBR
X10 Lighting and appliance modules are cheap on Ebay, I wanted to control them with my HMI (ScadaBR) so I put a […]
How To Scale A Thermistor for An Arduino
Thermistors And Your Microcontroller A thermistor is a simple temperature component, basically it is a variable resistor that the resistance changes in […]
Arduino Modbus PLC / RTU
PLC/RTU A Programmable Logic Controller, PLC or Programmable Controller is a digital computer used for automation of electromechanical processes, such as control […]
Home Automation HMI with Mango M2M
HMI A HMI (Human Machine Interface) is the system by which people can interact with a machine. The user interface includes hardware […]
Kossel Mini 3D Printer Accessories and Modifications
Here are some 3D printer accessories and modifications I couldn’t live without.