403 Results for "feather"

Magnetically Attached Flag Pole
Log from Sawppy the Rover
One of the problems I didn’t foresee in designing Sawppy was that some children might see a fun challenge in doing running jumps over my rover. I first saw this unwelcome behavior when I brought Sawppy to Long Beach, and I knew it’d only be a matter...

It Verks! Also Breakout Boards!
Log from SmoothMove - A New Human Computer Interface
Hey it's been a while, eh? In the time since my last post I have continued to futz around with my whole setup. I have spent hours and hours trying to figure out just why the heck things were not working. I even went so far as to just use the arduino...

Human Trials Begin
Log from A Halo For Lucy
The PCBs and parts have arrived. The near-term objective is to create a working prototype halo that will prove the concept using the Arduino Feather M0 Express along with a simple motherboard for the sensors. I removed the VL53L0X sensor ICs from the...

The Second Pass Prototype
Log from A Halo For Lucy
A list of new features and/or changes after testing the first prototype: Only three VL53L0X distance sensors. Five sensors is confusing and not necessary. There will be dead zones because the outer two sensors will be 50° off of the front sensor....

Prior Art (a.k.a. Open-Source Candy Shop)
Log from HDMI FPGA FeatherWing
A lot of PCBs out there have ESP32s and/or ECP5s that do graphics and game stuff. Since much of these projects are open-source, I hope to be able to leverage a lot of the information provided in them to speed up development. First, let's take a look...

Getting the Mega 2650 Pro Embed Arduino hooked up, spaghetti-style
Log from BLE Midi controller conversion of NI KORE
With all the buttons, pots and LEDs wired it was time to connect it all to the Mega 2650 Pro EmbedArduino board. As earlier mentioned I plan to use two Arduinos, one ATmega2560 based and one Adafruit feather nRF52840 Express. I made the following...

Change in plans...
Log from BLE Midi controller conversion of NI KORE
After some more thinking, looking into physical space available, wondering about how to get the BLE signal to reach out of the metal enclosure etc I decided to do some changes to the system partitioning and components. Instead of the Feather nRF52840...

Hardware choices
Log from digital-walkie-talkie
Platform Flash size requirements The codec2 library needs about 87KB, while the RadioLib needs about 10KB. Then, there's also the base Arduino libraries. And we still need to add our own code. To be on the safe side, a device with at...

Parallel Bus
Log from PewPew S2
The displays arrived a few days ago, but I really didn't have the energy to get them working until today. Yesterday I found my Universal Display Breakout Board™ and soldered the display to it. Today I connected a Feather RP2040 to it, and tried to get...

Select Exceptional Components
Log from Introduction to Ultra-Low Power Electronics
This section covers the most impressive components I have come across, all with extremely low power consumption. In reality, for most ultra-low power applications, you really don’t need to go this far. If you are using a rechargeable battery, the self...

Refactored code_NeotrellisExplorations and code.py
Log from NeoTrellis Explorations
The examples folder has single application (code_animKey_PixelMaps.py) that runs the full set of animations tied to key presses. That code irked me as hard to explain. I like clean modular code. So I split that program up into 4 files:...

Gen 2 PCB
Log from Sentinel Reforged
Another round of hardware!This round was mostly a first-pass at shrinking. But I did make a few other changes. Whether the hardware shrink is enough to fit in a lightsaber has yet to be seen.---------- more ----------Further details:The button was I2C...

Version 4 - It's Alive!!!
Log from Badminton ACE Shuttle Launcher
It's been a lot of work getting here, but I finally have version 4 coded and running enough to launch some shuttles. Through the build & programing I've identified many areas of improvement, but I am really liking where it's going.Next Steps..CalibrationThis...

Dr. VIP gives the project a shot in the arm
Log from Emulated TMS9918A using RP2040/DVI
In recent posts I've said that I wasn't happy with the mcu and surface-mount stuff being visible on the module's pcb alongside the through-hole stuff. I loved the way the feather looked when reversed but it doesn't have enough GPIO exposed. So I designed...

Energy Harvesting
Log from Introduction to Ultra-Low Power Electronics
The reduced power requirements of ultra-low power systems enables the use of energy harvesting to extend battery life, potentially indefinitely. This leads to the question: How does one design an energy harvesting system? The first step is to understand...

|<
<
23
24
25
26
27
>
>|