/tags/arduino/Recent content in Arduino on JKTDEV.CO.UKHugoen-usThu, 20 Aug 2026 23:06:06 +0100/posts/buildingblockspt34/Thu, 20 Aug 2026 23:06:06 +0100/posts/buildingblockspt34/<p>Today&rsquo;s focus was on the software side of the UCMOD-0 ATtiny1614 module and the Isolated RS485 Building Block Board, creating a basic &ldquo;Hello World&rdquo; test program, configuring the ATtiny1614&rsquo;s clock and brown-out settings, and testing communication over the RS485 bus.</p> <p>Things went well overall. There was an issue with a jumper wire not being fully seated, which caused instability on the power rail and in turn caused the ATtiny to halt intermittently. Once that was fixed everything looked good.</p>/posts/buildingblockspt33/Wed, 19 Aug 2026 20:27:25 +0100/posts/buildingblockspt33/<p>Today I finally got a chance to do some initial software testing with the UCMOD-0 and the Isolated RS485 Carrier Board.</p> <p>Things went surprisingly well, all things considered, other than a ten-minute diversion trying to figure out why the obligatory &ldquo;Hello World&rdquo; LED blink sketch was failing to blink the LED on the carrier board.</p> <p>Thankfully, the problem existed between the chair and keyboard — me — rather than with the hardware.</p>