Electronics

Posts on devices and electricity - anything that can spark - are collected here.

As shown on this GitHub feature request, the IDE does not currently...

I recently delivered the following half-hour presentation at pdxnode. The description is from the meeting summary.

Talk: Node.js on (Raspberry) Pi: A Crash Course
Description: A quick introduction to the hardware of a...
Johnny-Five without Arduino: Flashing Firmata with PlatformIO 26 July 2019

I recently found myself helping with PDXNode’s freestyle Robot Talent Show hack night (notes) for NodeBots Day. We needed to set up a stack of Arduino Unos for use with
Comitup and DietPi - ready WiFi provisioning portal or minimal Pi image, pick one 3 April 2019

The Raspberry Pi is an economical choice for IoT systems requiring solid processing power. Many projects rely on deploying such power
- in multiple remote locations;
- relying on unfamiliar WiFi networks;
- with the help of...
- Analog ECG amplifier 29 April 2017
  
  Years ago, a team consisting of Renata Rycyk, Sylwia Krysiak, and myself implemented a simple design of a one-channel amplifier for electrocardiogram signals. I have posted our work to highlight the potential pitfalls...
- Power supply efficiency calculator 26 June 2016
  
  How much power is your charger or adapter using?
  
  The true electrical efficiency of a power supply can only be determined by measuring the average input and output power over a period of time. Lacking...