Sending and Receiving Binary Files with the Notecard and NotehubThe Notecard was originally designed as a low-bandwidth and low-power device that effortlessly syncs user-defined JSON payloads (e.g. key/value pairs of strings, booleans, and integers) with any cloud endpoint. However, one of the most-repeated reque...Nov 28, 2023 · 8 min readblues.hashnode.dev
The Easiest Way to Upgrade Raspberry Pi OS from Bullseye to BookwormIf you're like me, when a new version of an OS comes out (I don't care of it's macOS, Windows, or Raspberry Pi OS) I feel an irrational need to install it. I'm also exceptionally lazy, so I usually opt for the upgrade path versus a clean install. To...Nov 7, 2023 · 6 min readblues.hashnode.dev
Read and Write Images and Text Files with a Micro SD Card and ArduinoWe've all been there. Well, at least I've certainly been there: I want to perform what I assume to be a simple task with C (Arduino): "I just want to read and write some data to a Micro SD card! This can't be that difficult can it!?" Five searches de...Oct 24, 2023 · 10 min readblues.hashnode.dev
When to Use Tadiran (Li-SOCl2) vs Lithium Polymer (LiPo) Batteries in IoT ApplicationsAs a product designer or embedded engineer, selecting the appropriate battery technology is crucial for ensuring the best performance/longevity combination to power your embedded device or IoT application. In this article, we will perform a high-leve...1MSep 26, 2023 · 8 min readblues.hashnode.dev
