https://www.envirodiy.org/members/mattschi/activity/ Activity feed for matt. Thu, 21 May 2026 21:57:33 -0400 https://buddypress.org/?v= en-US 30 hourly 2 7c18a0833ef8833140074d6089a75c45 https://www.envirodiy.org/topic/board-basics/#post-14937 Thu, 17 Dec 2020 03:20:41 -0500 Beth, in your third to last paragraph of your first post you started to touch on what I’m trying to understand. For example I am using pins D7, D11, D21, and I can refer to them in the code as 7, 11, 21 in basic sketches. But what does scl, sda, on the digital side, or AA1, AA3, etc on the analog side mean and how do I refer to those pins in the…[Read more]

]]> af9fd119fc742e8cc675a4a46225c822 https://www.envirodiy.org/topic/board-basics/#post-14933 Wed, 16 Dec 2020 15:54:49 -0500 I have looked through those sources and while I may have missed something in the LearnEnviroDIY link. Nothing answers my above question in a language I could understand.

]]> a872dcc5f36842c0df586260facc1286 https://www.envirodiy.org/topic/board-basics/ Wed, 16 Dec 2020 15:37:10 -0500 I am learning to use this board and so far found the basic documentation not basic enough. For one example, the 20 analog pins and 20 digital pins have labels but not any information explaining what they mean or how to read or write to each one in the code. Since the goal is to get more people using these and contribute to watershed data, even a…[Read more]

]]> 5cbe83acca6b6f0aadbe33dfcd175914 https://www.envirodiy.org/topic/hcsr04-sw5/#post-14930 Wed, 16 Dec 2020 15:30:02 -0500 I am trying to use the HC – SR04 with the board and have some similar questions. To clarify, are you saying that sensor can actually run fine at 3.3V? I hooked it up to the Sw5 pin and found code that says to power that at 5V write D22 high. Echo and Trig are hooked up to digital pins directly. Are you saying the return voltage from the echo pin…[Read more]

]]> 2c1409c951d9060cc2c97ab9fd39eae4 https://www.envirodiy.org/activity/p/5764/ Wed, 16 Dec 2020 15:20:51 -0500 0