https://community.element14.com/products/arduino/Find articles, links to purchase the latest products and projects using the popular brand Arduino on the element14 Communityen-USTelligent Community 12https://community.element14.com/products/arduino/arduino-projects/b/blog/posts/casio-caclulator-bidirectional-arduino-communication---data-logging-remote-control-and-moreFri, 28 Aug 2026 08:37:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:61ee2c5d-483a-44d0-80fc-12931df0dd1cMikeNZA discovery from 2007 fully exploited in 2026 - hacking the Casio calculator serial protocol The Arduino Uno is the board most schools already own for senior classes. Using these as cross-curricula sensor units requires adding a display, a keypad, SD module to save data (the R3 is limited to about 250 readings). But what if you could build something greater than the sum of the parts? And cheaper? Greatly extend the capabilities of a calculator many students already own. You can even upcycle old Casio FX-9750 G Plus calculators - and transform both the Arduino and Casio calculator into a general purpose tool for physical education, health, science, mathematics, Internet-of-things (IoT), and robotics / instrumentation. Reduce electronic waste at the same time! What is that port for again? The forgotten feature in the 2.5 mm port of a Casio FX-9750 and FX-9860 is now available on my GitHub, open-source and free. It takes the burden off the teacher, because the learners become the experts - constructing, coding and repairing their own smart data logger that also acts as a remote control and automation control interface. This is an extension of my 2008 research, which carried classroom validation and student feedback, now with a modern facelift and cross-platform compatibility. Full serial communication between the Casio and Arduino Full bidirectional communication using the Casio serial protocol works with Arduino, Picaxe, Microbit, ESP8266, and ESP32. Learners can record heart rate, temperature, sound level, and other readings using sensors they build themselves, for cents or a few dollars. There low-cost universal serial interface is simple and connects with 5V and 3V microcontroller and Casio models safely. Instructions, C++ code, teacher and student manual are here: https://mikefentonnz.github.io/projects/casio-calculator-data-logger-hack.html So, what do you want to build using a keypad and display most students already have access to at senior level? A historical heart rate monitor? A NASA Mars orbital surveyor simulator? A colorimeter to monitor a chemical change that logs every 2 seconds or every 2 minutes? A remote control for a robot? A PIN pad to open a secure system? All these ideas are demonstrated and work - and the calculator still does maths!Casio serial protocolsensorsFX-9750roboticsMaker ScienceHealthFX-9860electronic projectlow cost scienceultrasonichttps://community.element14.com/products/arduino/w/setup/27062/featured-content-triptych-setup-docThu, 27 Aug 2026 14:46:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:829559e7-4b86-4b20-9a96-24717ae05cd3e14cstantonHow capable is the VENTUNO Q’s NPU? Test out the AI Capabilities of the VENTUNO Q for free! Sign Up Exploring Arduino Pro's Role in Industry 4.0 This webinar highlights how edge computing technology can drive efficiency in applications related to Industry 4.0. Arduino Giga R1 WiFi Buy Now Tech Specs The Giga R1 packs BLE and the power of the STM32H7, the processor used in the Portenta H7, into the accessible Mega form factor. Read Blog Nicla Sense Buy Now An intelligent board that features industrial-grade sensors, including a Bosch Sensortec BHI260AP motion sensor system with embedded AI. Nano 33 BLE Sense Buy Now A low-power board with built-in BLE and Bluetooth 5, featuring temperature, pressure, humidity, light, and gestures sensors. Arduino Edge Control Board Buy Now Designed for precision farming applications, this control board is well suited for irrigation with modular connectivity.https://community.element14.com/products/arduino/m/files/151639Fri, 21 Aug 2026 15:17:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4751ffe5-9c49-4f8b-aa62-4501b49f7278cstantonYou can find out more about the VENTUNO Q here: ARDUINO VENTUNO QVENTUNO QUser Manualarduinoarduino ventuno qhttps://community.element14.com/products/arduino/arduino-projects/m/managed-videos/151558Thu, 06 Aug 2026 15:12:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:fa4d1fbb-1bec-4fa8-8769-3b4235a0804earvindsaThe transition from "coder" to "architect" is the biggest productivity jump I’ve experienced in 40 years of electronics. Do you want to join me on my journey? With my ten levels, it’s much easier than you think. And no, this is not about ChatGPT a...https://community.element14.com/products/arduino/arduino-projects/b/blog/posts/50-a-esp-now-outside-bme280-node-with-lora-wake-on-radio-part-of-three-node-heating-system-monitor-ivSat, 01 Aug 2026 12:21:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:daeabf61-b5a4-4217-a226-1ddc723e02a8AB9NQ-WilliamProject: Heating System Monitor IV Why use Heating System Monitor IV? Answer questions your thermostat can't. A thermostat knows the setpoint. HSM IV knows what the system actually did: how many minutes the blower ran today, how long each cycle lasted, how long the house held temperature between cycles, and what the indoor and outdoor conditions were at the time. Over days and weeks, that data answers real questions: • Is my system short-cycling? • Which thermostat setpoint gives long, efficient cycles instead of frequent short ones? • How does runtime track outdoor temperature? (Runtime per degree-day is your building's thermal signature — a sudden change flags a filter, refrigerant, or duct problem before the utility bill does.) • Is the system degrading over time? No electrical connection to your HVAC system. Blower detection is purely mechanical — an MPU-6050 IMU sensing vibration from outside the blower enclosure. Nothing is wired into the furnace or air handler. Nothing voids a warranty, nothing touches line voltage, and the whole monitor installs and removes without a trace — ideal for renters and apartments. Owns its data. Every event is logged twice: locally to the ESP32's flash (LittleFS, retrievable over FTP) and to a perpetual Google Sheet that rolls month-to-month and year-to-year automatically. No cloud subscription, no vendor account, no app. Survives real-world conditions. Runtime totals persist through power failures via NVS flash storage. A reset-reason log distinguishes normal power cycles from brownouts and watchdog resets. If the outdoor sensor node goes silent, its columns log "Offline" instead of silently repeating stale data. The outside node itself runs for years on battery power alone. Complete README.md README.md includes Nordic Power Profiler Kit 2 Observations of the Outside ~50 µA average current BME280 Node. Project files 73's (Best Regards) William, AB9NQhttps://community.element14.com/products/arduino/arduino-projects/m/managed-videos/151437Tue, 16 Jun 2026 10:50:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0aced73b-de2b-4a0f-9230-481933637edefeiticeir0https://community.element14.com/products/arduino/f/arduino-forum/56978/are-you-looking-out-for-the-arduino-ventuno-q/236032Mon, 08 Jun 2026 22:15:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ebf3d6c0-daa5-484d-8314-40e0a563eca4vmateRAM bandwidth is not looking that great for LLMs (about 50 GB/s if my math is right), I guess some 2B active MoE would be fine even on slow RAM, but probably not a pleasant experience. Also, I can't see any detailed specs on the CPU cores or NPU either, so hard to tell how fast prefill/prompt processing would go. I don't know of any recent MoE models that would be a good fit off the top of my head, Qwen1.5-MoE-A2.7B looks like a good option but it's old, or Gemma 4 12B is newer but dense. It would be fun to experiment with these in a RoadTest though. The real killer would be Qwen3.6-35B-A3B on a 32GB variant.