Argael Posted August 27 Share Posted August 27 Hi all, I want control my 2700w water boiler (On/Off) and have : the power consumption and the temperature (using a Dalas probe). I'm from Belgium : 240v - Power Plug at 20A wit 2.5mm2 cable. First, I've put a simple Shelly Plug (16A) and I worked for month. But as I want the temperature... I've tried with a Shelly 1PM + Shelly Plus Add-On protected by a 16A braker. It worked but the Shelly raised on temperature over 95C and auto-disconnect. So I plan to replace the 1PM with a Pro EM50 and connect the output to an external 20A relay to support the load and extra protection. My problem/question : how can I use my Dalas Probe ? The Pro EM seems have an GPIO port same as the 1PM on the side. Is plan by Shelly to create a "Add-On" for ? (It will be marvelous). Regards, 1 Quote Link to comment Share on other sites More sharing options...
tvbshelly Posted August 27 Share Posted August 27 3 hours ago, Argael said: My problem/question : how can I use my Dalas Probe ? The Pro EM seems have an GPIO port same as the 1PM on the side. Is plan by Shelly to create a "Add-On" for ? (It will be marvelous). Great idea 👏 Pls. submit your idea for new devices or features here: https://allterco.freshdesk.com/en/support/tickets/new?ticket_form=devices_and_features_proposal_archive The connector on the PRO EM-50 looks identical to the connector on the PRO 3EM to me. For the Pro 3EM exists a relay add-on which is connected there: https://www.shelly.com/en-de/products/product-overview/shelly-pro-3-em-switch-add-on However, this add-on is not mentioned for the EM-50 1 Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted August 27 Members Share Posted August 27 10 minutes ago, tvbshelly said: However, this add-on is not mentioned for the EM-50 A user of the „other“ forum did a test and evaluated that the Shelly pro 3EM switch add-on is working with Shelly pro EM-50: https://www.smarthome-forum.eu/thread/26358-shelly-switch-addon-auf-proem50/ Will double check this tomorrow… 2 Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted August 28 Members Share Posted August 28 (edited) The Shelly pro 3EM Add-On is working with Shelly pro EM-50 and firmware 1.4.0 and later versions: (Note: Measured date is not available cause the Shelly was supplied with 24V DC for test only.) Actions are available with and for the add-on switch: Edited August 28 by thgoebel 1 Quote Link to comment Share on other sites More sharing options...
tvbshelly Posted August 28 Share Posted August 28 (edited) Cool, good to know @thgoebel Okay, this topic misses the original point somewhat. The Plus add-on has completely different areas of application than the Relay add-on, but the interface will probably be the same. It is therefore feasible that Shelly could also offer a measurement add-on for the Pro devices, Edited August 28 by tvbshelly 1 Quote Link to comment Share on other sites More sharing options...
Members thgoebel Posted August 28 Members Share Posted August 28 The pins are provided at the host „pro“-series device. An add-on, suitable for one-wire-bus components and/or analog/digital inputs, is more or less an issue of form factor and firmware. The available Shelly add-on plus could be a base for such a development. 1 Quote Link to comment Share on other sites More sharing options...
Argael Posted August 31 Author Share Posted August 31 (edited) On 8/27/2024 at 9:55 PM, tvbshelly said: Great idea 👏 Pls. submit your idea for new devices or features here: https://allterco.freshdesk.com/en/support/tickets/new?ticket_form=devices_and_features_proposal_archive The connector on the PRO EM-50 looks identical to the connector on the PRO 3EM to me. For the Pro 3EM exists a relay add-on which is connected there: https://www.shelly.com/en-de/products/product-overview/shelly-pro-3-em-switch-add-on However, this add-on is not mentioned for the EM-50 Hi, And btw, as the Pro50Em has already an I/O output the Pro 3PM is less usefull... The goal is to have a Addon to connect probes like (DHT22, DS18B20, PIR, ...) as @thgoebel said. Edited August 31 by Argael Quote Link to comment Share on other sites More sharing options...
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