Like many developers I purchased an HLK-RM04 WiFi route module with the intent of Flashing my own Linux image onto it. So I wired it up and tried to build an OpenWRT image using a virtual machine running Ubuntu.…
Rolly Bot Preview
My first 3D printed Rolly Bot design is a work in progress. The printed plastic parts work well enough that I want to move on to designing a user friendly PCB as part of the design. As you can see…
WS2812B Introduction
The WS2812B is a bit addressable RGB LED. The WS2812B (don’t confuse this with a WS2812 which has six pins) is a four pin device that is very simple to wire up to an Arduino. The LEDs can be daisy…
Carduino/Swarmbot
I’m not sure whether this design should be called Carduino or Swarmbot. The design of this car is based on the Arduino UNO where the pin map matches that of an UNO. The design includes a dual H-bridge so that…
Mini Maker Faire Ottawa
After posting about the Paper Car 2014 circuit its about time to reveal the final project. In preparation for the Ottawa mini maker faire I have designed yet another paper car. Hopefully the project will run a little smoother than…
Using Paper Car 2014
The Tiny84 paper car controller includes the following two features by default. First there is a motor speed controller which allows you to directly drive two low current motors. Using FET transistors attached to the Tiny84 I can drive two…