https://community.element14.com/The community for engineers, technicians, makers and creators.en-USTelligent Community 12https://community.element14.com/learn/events/c/e/1774Tue, 10 Nov 2026 09:30:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:7dba8d66-85d4-41e7-ac5e-7d5eb82ba97ce14philVisit the element14 Community Pod at electronica 2026 Hall B5, Stand 10, Avnet City Messe München, Munich, Germany November 10–13, 2026 Why Should you come and visit: Learn about our NEW Design Challenges Take part in our RoadTests & Reviews Program Meet mayermakes from our element14 presents YouTube Channel. Meet e14phil and JoRatcliffe from the element14 Community team. Win so much Swag! Tickets Are you planning to attend? Would you like a ticket? We may have limited tickets for members, if you comment below! Come find us! Check out more information about the Farnell Booth in the Avnet City: https://uk.farnell.com/mc/electronicacompetitiontrade showelectronicagermanyhttps://community.element14.com/learn/events/c/e/1775Tue, 27 Oct 2026 15:00:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:2608eb84-4535-42ba-8582-db0b9843b88fVinod-GAre you curious about the future direction of LabVIEW+, Nigel AI, and how Emerson | NI is supporting the next generation of automated test and measurement systems? Join this one-hour webinar for a fast-paced update on what's new in the LabVIEW+ Suite, including Nigel. Whether you're building new test systems, maintaining legacy applications, or looking for ways to improve your productivity, you're guaranteed to leave with practical ideas you can apply to your own work. This session will cover: The latest updates to the LabVIEW+ Suite How you can incorporate Nigel into engineering workflows: Code generation in LabVIEW+ Sequence generation in NI TestStand Get assistance in FlexLogger and InstrumentStudio Getting the most value from AI-assisted development Stay to the end for a live Q&A where you can put all your questions on LabVIEW+ and AI to the session's host: David Prida. The Presenters: David Prida - Solutions Marketer - Emerson | NI While at NI, David Prida has experience in Support Engineering and Marketing for RF and Enterprise Software. His current role as a Solutions Marketer focuses on NI's Application Software, elevating our technology and enabling others to Engineer Ambitiously. His experience across NI's Software Portfolio has allowed him to support customers across a variety of industries and applications. David holds a BS in Mechanical Engineering from the University of Florida.. LinkedIn: David Prida Jordan Ratcliffe - Marketing Program Senior Specialist - element14 Community Jordan Ratcliffe will be your host from the element14 Community for Introductions and Q&A. LinkedIn: Jordan Ratcliffe More about Emerson | NI: Emerson delivers future-ready test and measurement solutions through the power of the NI platform—a combination of high-performance open software, modular hardware, and AI-driven capabilities that enhance productivity. Flexible and scalable, the NI platform transforms how engineers automate measurement, control, and testing of complex products that move our world forward. For more information on Emerson | NI, click here . Attend and Learn to Earn a Certificate Watch the webinar until the end to earn a certificate. Read here for more information about how to get your certificate: /members-area/support/w/site-faq/27798/how-do-i-earn-a-certificate-for-viewing-a-webinar-or-webcast Are you prepared? This webinar uses the online service on24 to deliver the presentation. Click through and check that you meet the minimum system requirements before attending.TestStandemerson-e14NI-e14instrument studioNigel AIflexxloggerailabviewtest_and_measurementhttps://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238428Mon, 28 Sep 2026 22:08:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:00c16ff8-59d9-4404-8c26-959932d700dccolporteurMy internet must be slow:) or problem is between keyboard and chair.https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238427Mon, 28 Sep 2026 21:42:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c186f0dd-097a-42b0-8435-86494a151f60obonesAnd yet, the documentation does not mention support for it: https://redpitaya.readthedocs.io/en/latest/quickStart/alucase/alucase.html And even deeper, it says "not yet available": https://redpitaya.readthedocs.io/en/latest/developerGuide/hardware/GEN2/hw_specs/hw_specs.html#cooling-options So yeah, you are kind of a wizard here!https://community.element14.com/challenges-projects/project14/b/make-a-connection/posts/using-lora-for-remote-communicationMon, 28 Sep 2026 21:35:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:058361a2-509a-46e2-98a1-a601b22bddc2redcharlyIntroduction The project I wish to propose stems from my curiosity about the LoRa protocol, which has always fascinated me due to its ultra-low power consumption and long-range capabilities. I built a communication system consisting of several components working together to enable communication between two stations located several kilometers apart. I used two different boards, both operating at 868 MHz with identical configuration parameters. The first board—which we will call Station0—acts as a receiver for telemetry data sent by the second station (Station1). My original intention was to build a complete system to manage the irrigation of plants located a few kilometers away. Summers here in Sicily have become extremely hot, making frequent watering necessary—especially for fruit trees planted within the last year or two. Work commitments made it impossible to complete the full project. Therefore, I will present only the communication aspect between the two boards: how I configured them, the issues I encountered, and the solutions I found—since I was ultimately able to verify the system's operation over a distance of several kilometers. Station1 The transmission system consists of an STM Nucleo-F401RE board and a LoRa shield; I have also included a tank level monitoring setup using an ultrasonic sensor, though I have not yet calibrated or tested it. STM Nucleo-F401RE Buy Now Dragino Long Range Shield Ultrasonic distance sensor: Buy Now The two boards are located a few kilometers apart and there is optical visibility between Station0 and Station1. The aim of the project is to receive data from Station1, located on agricultural land, and decide whether to open irrigation water and for how long. This project was born from a real need that I have, given that, in recent years, the temperature in summer has increased and the rains are very rare, I wanted to create a system that uses a tank to irrigate, when necessary, the younger plants which, in the absence of an extensive root system, would suffer too much from drought. The tank has a fill valve, used to fill it with water, and a drain valve that activates when I want to water plants. At the moment I am only dealing with the remote control of the pumps, without evaluating the soil humidity, but, once the project is completed, adding such a functionality and making it absolutely automatic is a very trivial thing. The two stations will exchange messages in the form of strings which, appropriately formatted, will allow me to send simple information from one device to the other. Station1, at moment, is powered by a powerbank that is kept charged by a solar panel and a simple charge controller. Station1 detects and sends the following data: packet number status of the tank loading valve; status of the tank drain valve; tank water level The code is: #include #include // ---------------- PIN DRAGINO ------------------------- const int LORA_SS = 10; const int LORA_RST = 9; const int LORA_DIO0 = 2; // ---------------- PARAMETRI LORA ---------------------- const long LORA_FREQ = 868E6; // ---------------- BUFFER ------------------------------ char rxBuf[64]; // buffer dove scrivo il messaggio ricevuto // ---------------- VARIABILI E PARAMETRI ---------------------------- String currentTx; String nameTx = "Station1"; // nome della stazione remota unsigned long packetNumber = 0; unsigned long ACKNumber = 0; int caricoH2O = 0; // 0 acqua chiusa 1 acqua aperta int scaricoH2O = 0; // 0 acqua chiusa 1 acqua aperta int livello = 0; // livello % dell'acqua nella vasca unsigned long lastSend = 0; const unsigned long sendInterval = 10000; // 10 secondi unsigned long ledTxTime = 0; unsigned long ledRxTime = 0; const unsigned long ledDuration = 200; // durata del LED acceso // ---------------- PARAMETRI SERBATOIO ---------------------------- #define TRIG_PIN 4 #define ECHO_PIN 5 const float SERBATOIO_ALTEZZA = 150.0; // cm #define LEDTX 6 // LED sul pin 6 PING ricevuto #define LEDRX 8 // LED sul pin 8 PONG ricevuto // ======================================================= // MisuraLivello // ======================================================= float misuraLivello() { digitalWrite(TRIG_PIN, LOW); delayMicroseconds(2); digitalWrite(TRIG_PIN, HIGH); delayMicroseconds(10); digitalWrite(TRIG_PIN, LOW); long durata = pulseIn(ECHO_PIN, HIGH, 30000); if (durata == 0) { return -1; // nessuna misura } // velocità del suono: circa 0,0343 cm/us float distanza = durata * 0.0343 / 2.0; // livello acqua float livello = SERBATOIO_ALTEZZA - distanza; // limiti if (livello SERBATOIO_ALTEZZA) { livello = SERBATOIO_ALTEZZA; } return livello; } // ======================================================= // SETUP // ======================================================= void setup() { Serial.begin(115200); pinMode(LEDTX, OUTPUT); pinMode(LEDRX, OUTPUT); pinMode(TRIG_PIN, OUTPUT); pinMode(ECHO_PIN, INPUT); Serial.println(); Serial.println("================================"); Serial.println("AVVIO PROGRAMMA"); Serial.println("================================"); LoRa.setPins(LORA_SS, LORA_RST, LORA_DIO0); Serial.println("Pin LoRa impostati"); Serial.println("Parametri LoRa impostati"); if (!LoRa.begin(LORA_FREQ)) { Serial.println("ERRORE LoRa"); while (1) { digitalWrite(LEDTX, HIGH); delay(200); digitalWrite(LEDTX, LOW); delay(200); } } Serial.println("LoRa OK"); Serial.println("Programma avviato"); LoRa.setTxPower(20); LoRa.setSpreadingFactor(12); } // ======================================================= // LOOP // ======================================================= void loop() { // ===================================================== // SPEGNIMENTO LED DOPO 200 ms // ===================================================== if (digitalRead(LEDTX) == HIGH && millis() - ledTxTime >= ledDuration) { digitalWrite(LEDTX, LOW); } if (digitalRead(LEDRX) == HIGH && millis() - ledRxTime >= ledDuration) { digitalWrite(LEDRX, LOW); } // ===================================================== // TRASMISSIONE OGNI 10 SECONDI // ===================================================== if (millis() - lastSend > sendInterval) { lastSend = millis(); currentTx = nameTx + "," + String(packetNumber) + "," + String(misuraLivello()) + "," + String(caricoH2O)) + "," +; String(scaricoH2O)); Serial.print("[TX] Invio: "); Serial.println(currentTx); LoRa.beginPacket(); LoRa.print(currentTx); LoRa.endPacket(); // LED TX acceso per 200 ms digitalWrite(LEDTX, HIGH); ledTxTime = millis(); packetNumber++; } // ===================================================== // RICEZIONE // ===================================================== int packetSize = LoRa.parsePacket(); if (packetSize) { // LED RX acceso per 200 ms digitalWrite(LEDRX, HIGH); ledRxTime = millis(); int len = 0; while (LoRa.available() && len < sizeof(rxBuf) - 1) { rxBuf[len++] = (char)LoRa.read(); } rxBuf[len] = '\0'; Serial.print("[TX] Ricevuto: "); Serial.println(rxBuf); // ================================================= // PARSING DEL MESSAGGIO // ================================================= char *token = strtok(rxBuf, ","); if (token != NULL) { String nome = String(token); // Secondo token token = strtok(NULL, ","); if (token != NULL) { ACKNumber = atoi(token); } // Terzo token token = strtok(NULL, ","); if (token != NULL) { action = atoi(token); } // Stampa i risultati Serial.print("Source: "); Serial.println(nome); Serial.print("ACK Number: "); Serial.println(ACKNumber); Serial.print("Action: "); Serial.println(action); } } } Station0 Station0 is the base station that collects remote data and allows the user to send commands to Station1 (tank filling and tank emptying). NUCLEO-WL55JC Station0 receives packets from Station1, allowing the user to decide on the appropriate action. Commands sent from Station0 to Station1 are handled via a packet formatted as a string with comma-separated fields. These fields are: ACKNumber, matching the PacketNumber of the recently received packet; OpenFillValve to fill the tank with water; OpenDrainValve to empty the tank—and thus irrigate. By using a PacketNumber and an ACK, we can ensure that the packets have reached their destination. The code itself is derived directly from an example application in STM32CubeIDE. You can fin it here: LoRa_Communication Code Conclusion Essentially, I am presenting a draft of the project I intended to build; there is still a great deal of work to be done—particularly regarding the field deployment of a stable, reliable, solar-powered unit. I plan to implement several improvements in the future: enhancing the sensor suite on Station1 to enable automated irrigation decisions based on soil moisture levels; managing power supply via photovoltaic panels and charge controllers to make Station1 energy-independent; connecting Station2 to the Internet, enabling remote irrigation control or operation via other devices (such as smartphones) and from everywhere; adding an address field to each transmitted packet to allow a single control station to manage multiple irrigation stations. After countless attempts tweaking the parameters and configurations of the two boards I own, I realized that using high-quality antennas is crucial. While the small antennas mounted on the boards work fine for indoor testing, moving the boards even a few hundred meters apart causes the signal to degrade so much that communication becomes impossible. For anyone looking to build a real-world system covering several kilometers, I recommend choosing good antennas—either omnidirectional or directional, depending on the specific application. High-quality antennas and cables are essential for the system to function properly. Finally, it is important to ensure a clear line of sight between the two stations; buildings or other obstacles could attenuate the signal too much. Omnidirectional Antenna Directional Antenna (Mount Etna in the background) I will write a new post as soon as I have completed the project.loradraginostm32make a connectionhttps://community.element14.com/challenges-projects/design-challenges/my-project-is-trash/f/forum/57309/it-s-all-lonely-here/238426Mon, 28 Sep 2026 21:32:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:f5893605-5c32-4aba-832c-e589c4e7bf59shabazNot seen that, but the local waste collection people gave me a little mini bin earlier this year (well, two by mistake, and I've not used either one so far..) with little wheels on them, turn them into something more useful. When I saw this challenge, it made me think maybe they needed electrical motion added to both (but lack of time.. : (https://community.element14.com/technologies/experts/f/forum/57310/experience-using-lascar-easylog-data-logger/238425Mon, 28 Sep 2026 21:25:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:895b3b53-47c5-49a3-80a5-2adb8a511fa8shabazI don't own that device, but of course disconnection issues wouldn't normally sound usual. You may have a faulty unit, perhaps an intermittent connection somewhere in your setup or device, if movement causes disconnection.https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238424Mon, 28 Sep 2026 20:35:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fd170979-eba9-4ae2-9054-3a47077a78b4beacon_daveLooks like the Facebook announcement for it was on 5th August: https://www.facebook.com/redpitayaspark/posts/give-your-red-pitaya-setup-the-support-it-deserves-our-shop-is-full-of-accessori/1502985528536717/https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238423Mon, 28 Sep 2026 19:55:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1366a090-06d6-4bd8-9826-527e9a1d4109colporteurMaybe it got posted this week. I never found it last week. I did find the compatibility warning. I did get money back on the other case, other than the $30 restocking fee.https://community.element14.com/challenges-projects/design-challenges/my-project-is-trash/f/forum/57309/it-s-all-lonely-here/238422Mon, 28 Sep 2026 19:46:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:00a17a85-1319-4fb6-97e3-5b1995d0815abeacon_daveEver seen the 1986 movie 'Malcolm' with the remote-controlled waste bins scene ?https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238421Mon, 28 Sep 2026 19:32:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:68136278-67e8-4595-ba0a-aa6b8ce7cc54beacon_daveSpent close to 60 seconds... Googled "red pitaya case". Followed the link to the official Red Pitaya legacy case. Clicked back up to 'Accessories' to see if there was a Gen 2 Pro version. Scrolled down to Aluminium case Gen 2.https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238420Mon, 28 Sep 2026 19:25:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:04bc803e-81c0-4d7c-ae93-13826c292fefcolporteurHow is it B_D, that you manage to get hits where I can get none? I spent close to an hour on the weekend trying to find a case. Acrylic yes. The case no ends so it fits all models. I even search Red Pitaya and got nothing. Then you send me the link. It was $142 bucks canadian after the currency exchange. Let's hope it fits:(https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238419Mon, 28 Sep 2026 19:01:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:79957696-97f5-4bd9-b3bd-f01be196415abeacon_daveAluminium case Gen 2 https://redpitaya.com/product/aluminium-case-gen-2/https://community.element14.com/products/roadtest/f/forum/57265/post-2-road-out-ahead-red-pitaya-stemlab-125-14-pro-gen-2-starter-kit/238418Mon, 28 Sep 2026 18:38:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:3de03c5b-4720-406b-a7fa-7550906f5f55colporteurThe Red Pitaya RoadTest deity are smiling on me. I got reimbursed for the metal case I purchased. As of this post I have been unable to find a METAL Red Pitaya case compatible with this hardware. Maybe that is the reason no cases were provided for this RoadTest.https://community.element14.com/technologies/experts/f/forum/57310/experience-using-lascar-easylog-data-loggerMon, 28 Sep 2026 16:01:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5a5ce2c3-34b6-4efa-980f-3462ddfbcfa4kinoniHello, has anyone used the Lascar EasyLog Data Logger before? Is it normal for the logger to functioning inconsistently during first few datalogging sessions? (i.e. due to slight movement disconnecting the internal circuit connection, disabling the datalogging function midway datalogging session)