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Marlin 2.0 Firmware configured for Ender 3 + BL Touch

1 day ago By Daniel 7 comments

This is the vanilla version of Marlin Firmware 2.x pre-configured for Creality Ender 3 printers with the original or generic BL Touch sensors. The standard configuration file from Marlin distribution was carefully reviewed to include the latest Ender 3 specific settings from the official Creality firmware and from Antclabs.

Control Arduino from Android using Node-RED and Johnny-Five

2 weeks ago By Daniel

Tutorial for controlling Arduino or other IoT devices from Android phones using Johnny-Five and Node-RED. The connection to the board can be local (USB OTG) or remote (TCP).

Control Arduino via USB OTG from Android

2 weeks ago By Daniel

This script allows Johnny-Five to run from a Termux terminal communicating with other Android apps or external devices by using the TCP protocol without root, without bluetooth and without the WiFi shield. The reason for the TCP protocol is that Termux still does not implement USB-OTG to Serial drivers and the vanilla Johnny-Five would hang right out the box because of this limitation.

Planet Position Calculator in JavaScript

1 month ago By Daniel

Keplerian Elements for Approximate Positions of the Major Planets Based on the paper written by E. M. Standish, Solar System Dynamics Group JPL/Caltech

https://ssd.jpl.nasa.gov/?planet_pos

Code is also available for download on GitHub