As mentioned in my DIY e-kayak series, I have been working on a breakout board for a cool little button circuit I found! For the kayak controller, I found myself wanting a single button UI that controlled power and provided inputs to the system. I wanted to save space and keep a minimal design so …
One Button to Rule Them All: Single Button for Power and Input! Read More »
In Part Two of my e-kayk series, I started on the kayak remote control that mounts to the paddle. I showed the bread boarded electronics, firmware and teased the 3D printed housing. Now I’ve got it ready for prime time. In this part three, we shrunk down some of the electronics with a few custom …
DIY e-Kayak: Part Three (Remote Control Finished) Read More »
I am building the e-bike of kayaks. So how do you control a DIY electric kayak? With a phone app? With a remote control? All while trying to hold a kayak paddle? I wanted the user interface to feel as natural as possible without removing you from the actual experience of kayaking. This Instructable shows …
DIY Electric Kayak: Part Two (Oar Remote Firmware) Read More »
I’ve always loved the water. I was a life guard, work on UUVs (Unmanned Under Water Vehicles) as a career and I’m Norwegian. Living in Seattle, being surrounded by so much water, I’ve wanted to build my own electric kayak for a long time! I have also wanted to do a project involving machine learning …
The power source is a vital part of every electronics project. From solar energy and EVs to portable game consoles and smart phones, batteries make up the vast majority of these power sources. So why do most engineers never learn about battery sizing in school? I’ll walk you through how to choose the right battery …
How to Choose the Right Battery for Your Project Read More »
Some time ago, I started seriously tossing around the idea of building my own electric motorcycle. The reality of my one bedroom Seattle apartment, the time commitment and the costs of the battery alone all set in and I realized I might have to put this project on hold. But while pondering the build, I …
A Schmitt Trigger is a very practical circuit that helps eliminate switching noise on an input signal by implementing what is called hysteresis. Imagine you have a system that feeds a 0 – 5V signal into a rising/falling edge GPIO interrupt. With no Schmitt Trigger, the interrupt would trigger anytime the signal rises or falls …
One major advantage of object oriented programming (OOP) languages like C++ is polymorphism. Polymorphism is defined as, “The condition of occurring in several different forms”. In OOP, this would mean the compiler’s ability to infer the right function call / behavior based on the input data alone. For example, when calling an add function the …
The need for complex graphics and communication stacks in modern embedded projects has grown exponentially. WIFI, Bluetooth and MIPI are just a few examples that come to mind. This is where embedded linux thrives. If the extra costs can be absorbed, the use of embedded Linux will save tons of hours in development time for …
Whether graduation, Christmas or Birthdays, I am notoriously hard to shop for. Most of what I want is related to electronics or tools that my family members have no interest in. Sifting through the endless tacky engineering shirts and cheap hacky “tools” can be overwhelming for the uninitiated. So I have done the endless scrolling …
