Release notes and updates for the RBgrid self-hosted ESP32 energy monitor. https://www.rbgrid.io/blog 2026-11-03T00:00:00Z rbAmp team https://www.rbgrid.io/blog/rbgrid-v112 2026-11-03T00:00:00Z 2026-11-03T00:00:00Z

RBgrid v1.1.2 — up to eight rbAmp modules per hub, three-phase input from one module, and the web app as a ready package.

<p>RBgrid v1.1.2 is out. It brings more modules per hub, a three-phase input from a single module, and the web app as a ready package on the release page.</p> <h2 id="get-it">Get it</h2> <ul> <li><strong>Firmware:</strong> the <a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/releases/tag/v1.1.2" rel="noopener" target="_blank">v1.1.2 release</a> has the image set for a fresh USB flash, each file with its SHA-256, and the image for an over-the-air update.</li> <li><strong>Web app:</strong> <code>rbgrid-ui_v1.1.2.zip</code> on the same page; install it onto the hub as described in <a href="https://www.rbgrid.io/get-started">Get started</a>.</li> <li>Already on v1.1.x? Update over the air from the app (Settings → Hub firmware); your Wi-Fi and settings are kept. Then install the new web app package.</li> </ul> <h2 id="whats-new">What's new</h2> <ul> <li><strong>Up to 8 rbAmp modules per hub</strong>, up to 56 current channels. History is kept for up to 12 measurement points; the rest show live values.</li> <li><strong>Add modules from the app</strong>: scan the bus, add a module, change its address. New modules all arrive at the same address, so connect them one at a time with the hub switched off.</li> <li><strong>Three-phase input from one STD-U3I3</strong>: on the module card, choose <strong>Use as the three-phase input</strong>; after a restart the input shows per-phase readings and the phase rotation.</li> <li><strong>SCT-013-060</strong> is now in the clamp list.</li> <li><strong>Hub access point</strong> in Settings: change the access point's password or return to the setup password.</li> <li><strong>Factory reset</strong> now resets the hub: settings, points, tariff, modules, Wi-Fi and tokens, with an option to keep history.</li> <li>The time panel shows <strong>not synchronized</strong> after a failed sync, and the app warns if the module bus stops responding.</li> </ul> <h2 id="fixed">Fixed</h2> <ul> <li>The STD-U3I3 no longer shows as "uncalibrated".</li> <li>The unused "Secure connection (TLS)" switch is gone from the MQTT form.</li> <li>A build from source fetches the rbAmp ESP-IDF component by itself.</li> </ul> <p>Full list: the <a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/blob/master/CHANGELOG.md" rel="noopener" target="_blank">changelog</a>.</p> https://www.rbgrid.io/blog/firmware-releases-7/rbgrid-v101-9 2025-11-04T00:00:00Z 2025-11-04T00:00:00Z

Download RBgrid_v1.0.1.zip and follow the flashing guide.

<h3 id="improvements">Improvements</h3> <ul> <li><strong>System Boot Optimization</strong> - Optimized and accelerated system boot process</li> <li><strong>Boot Log Optimization</strong> - Improved boot log output to terminal for better debugging experience</li> <li><strong>Statistics Storage Optimization</strong> - Optimized long-term statistics writing to flash memory, fixed function call sequence for period statistics recording</li> </ul> <h3 id="documentation">Documentation</h3> <ul> <li>Added comprehensive <a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/blob/master/docs/FLASHING.md" rel="noopener" target="_blank">flashing guide</a> with detailed esptool instructions</li> <li>Includes partition table layout and troubleshooting tips</li> </ul> <h3 id="download">Download</h3> <p>Download RBgrid_v1.0.1.zip and follow the <a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/blob/master/docs/FLASHING.md" rel="noopener" target="_blank">flashing guide</a> for installation instructions.</p> <p><a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/releases/tag/v1.0.1" rel="noopener" target="_blank">https://github.com/robotdyn-dimmer/RBgrid/releases/tag/v1.0.1</a></p> https://www.rbgrid.io/blog/firmware-releases-7/rbgrid-v100-8 2025-11-04T00:00:00Z 2025-11-04T00:00:00Z

RBgrid v1.0.0 — the first public firmware release. Release notes and download.

<p>Initial firmware release.<br/> <a data-ev="github_click" data-ev-placement="blog-post" href="https://github.com/robotdyn-dimmer/RBgrid/releases/tag/v1.0.0" rel="noopener" target="_blank">https://github.com/robotdyn-dimmer/RBgrid/releases/tag/v1.0.0</a></p>