https://community.element14.com/learn/learning-center/stem-academy/STEM Academy, our dedicated area for anyone who wishes to explore learning concepts and classroom-based design projects within the electronic and digital space. en-USTelligent Community 12https://community.element14.com/learn/learning-center/stem-academy/m/managed-videos/151686Mon, 31 Aug 2026 11:42:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a30c7cf9-767a-40a3-822d-e85bc4a6bf32MikeNZRetore control of your Hasbro Smart R2D2! Hasbro's Smart R2-D2 was sold in 2016 with an Android app that controlled it over Bluetooth. Modern phones will not install it, so the toy lost a lot of functionality and playability. Nothing is wrong with...esp32Homemade sensorsHasbro R2D2webserverCasio graphing calculatorCasio FX-9860keypadremote controlhmiHasbro Smart R2D2DroidXRIGELMaker Sciencehands-on mathshuman machine interfaceScience toolsCasio FX-9750low cost scienceR2D2 apphttps://community.element14.com/learn/learning-center/stem-academy/microbit/b/blog/posts/use-a-casio-caclulator-as-a-microbit-display-and-keypad---data-logging-remote-control-and-moreSat, 29 Aug 2026 09:27:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:60125b43-f53d-4583-b496-de67e5b14936MikeNZA discovery from 2007 fully exploited in 2026 - hacking the Casio calculator serial protocol The Microbit is the board most schools already own for jumior classes. Using these as cross-curricula sensor units requires adding a display, a keypad, SD module to save data. 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 Microbit 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 Microbit 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. Use an old Casio G Plus (I got one very a few dollars from a second-hand shop) to give a alphanumeric display and a keypad to the Microbit. 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!tutorialmakerspacestemteaching programmingmicrobit v1microbit v2microbit projectsdiyfitnessbbc microbitcodebig ideassensorlesson planshttps://community.element14.com/learn/learning-center/stem-academy/f/forum/52707/green-envy-finally-gets-to-make-its-debut-at-lake-gairdner/237955Fri, 28 Aug 2026 17:21:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:5951ed82-30f9-41c5-87c0-4f69ed66b277beacon_daveWell, I did try... https://community.element14.com/members-area/f/forum/55579/top-tech-voices-podcast-episode-5-evs-the-race-to-electrify-power-management/227213https://community.element14.com/learn/learning-center/stem-academy/f/forum/52707/green-envy-finally-gets-to-make-its-debut-at-lake-gairdner/237951Thu, 27 Aug 2026 14:20:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:e05dc997-62fd-4bcf-a5cd-7a1006aa858fbeacon_daveFinal run for this event, finishing with a good result. The weather held out, which is a factor when you have to ship your machinery and mobile workshop halfway around the world for an event window typically lasting just a few days. The next outing should be even more interesting now that a lot of the initial gremlins appear to have been evicted. (Co-pilot Dolly looks pleased with this week's result.) ('Top Time of The Meet!' award)https://community.element14.com/learn/learning-center/stem-academy/f/forum/52707/green-envy-finally-gets-to-make-its-debut-at-lake-gairdner/237950Thu, 27 Aug 2026 12:46:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:229a6db8-4dc9-4446-a6fa-b895622b48d7cstantonI feel this whole thing deserves a dedicated blog post with more info, this is so cool.https://community.element14.com/learn/learning-center/stem-academy/f/forum/52707/green-envy-finally-gets-to-make-its-debut-at-lake-gairdner/237949Wed, 26 Aug 2026 15:29:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:9cdc5b9c-23a1-4b67-87da-9834b4d6758cbeacon_daveMeta glasses and LED matrix displays at 222MPH... https://www.instagram.com/eva_hakansson/p/DcfCSyCCF0Y/https://community.element14.com/learn/learning-center/stem-academy/f/forum/52707/green-envy-finally-gets-to-make-its-debut-at-lake-gairdner/237915Fri, 21 Aug 2026 17:50:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a7d99001-e0a5-4b00-bb2b-e283cb1a33bdbeacon_daveGreen Envy is currently at Bonneville this week ready for the Bonneville Motorcycle Speed Trials 23rd - 27th August. Salt looks good, the shakedown runs on the runway last month went well, so hopefully a chance for some fast runs at long last.https://community.element14.com/learn/learning-center/stem-academy/f/forum/57127/do-you-want-to-build-a-computer/237555Sat, 25 Jul 2026 19:01:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:bb8c290c-4d51-4245-a50e-8dceee553d10DABI did bit-slice design in college. Not sure I want to delve back into that world.https://community.element14.com/learn/learning-center/stem-academy/f/forum/57127/do-you-want-to-build-a-computerThu, 23 Jul 2026 22:55:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:6d8a32ca-2f0c-4f6f-8de7-3e979bf30db2stantoCome on out and play~~~ (to the tune of 'do you want to build a snowman? from Frozen) https://nandgame.com/ The interface is a little janky but it's still quite fun. I'm not affiliated with whoever made it.nand gamebuild your own computerhttps://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234242Fri, 06 Mar 2026 06:15:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:553f320e-171a-4233-8ca4-9dfe00e32bf6Knighthawk_140A how to guide to read mnemonic triangle. A new day where the ELITE are EDUCATEDhttps://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234239Fri, 06 Mar 2026 02:21:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:48693706-6f82-41b2-9799-6a9f33fca406shabazI think it's easier to derive from the formula; the arrangement of the four variables in a triangle doesn't work (whereas with three variables, the V=IR triangle makes sense, and same for other relationships like these). Here's a four-variable representation which makes sense.. although this was quickly done with AI, so check it before use. The style however is (or was) very popular back when electronic calculators were not common (and often precise values are not needed, just a ballpark, because of component tolerances). This can be done for all manner of formulae (was popular for 555 timer calculations too).https://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234238Fri, 06 Mar 2026 01:09:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:3b941d15-ecd6-4620-b6a4-9108bad78cbbKnighthawk_140AND ONE BECOMES TWOhttps://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234177Wed, 04 Mar 2026 21:34:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:eb425459-5a38-4eeb-a702-2810117074b1robogarylooks like a jet turbine :-) compression, ignition, delta temperature , delta Velocity then whoosh !https://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234174Wed, 04 Mar 2026 16:22:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4879ce32-292d-4ed4-9b6a-4e922be85134dougwhttps://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234173Wed, 04 Mar 2026 16:02:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:2b2d9483-1cd3-4110-b324-d4a7cc85df07michaelkellettWell Doug, I probably won't forget that ..... But I think I'll stick with classical maths notation when I need to do sums. MKhttps://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234172Wed, 04 Mar 2026 15:57:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ec34aff1-a921-41a6-896f-69a631f37082dougw☺https://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234171Wed, 04 Mar 2026 15:29:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:06e4f8d3-51f5-42fd-93e3-9a3a1f340b4eKnighthawk_140https://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234170Wed, 04 Mar 2026 13:57:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:583e4017-bfc5-470b-88ed-f08b0dc4c93bobonesAnd here I was thinking I'm the only one not to get this...https://community.element14.com/learn/learning-center/stem-academy/f/forum/56737/mnemonic-triangle/234169Wed, 04 Mar 2026 13:33:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:695aec96-55ae-4388-b142-ce8c7ea066b6michaelkellettHow interesting - to me it looks like those meaningless diagrams that people use to illustrate corporate time-wasting presentations The equation is T = (C * dV)/I or dV = (T * I) / C (dV because its the change in V while I and C are constant) I just can't see how the diagram shows that. If a vertical bar means * and a horizontal bar means / then what does the horizontal bar below T mean ? I can't work out a consistent decode of the diagram. I know that some people associate colours with numbers or letters (synesthesia) - I don't. Maybe "seeing" this diagram is a similar thing. MK