I tried to run Example code from the PZEM libraries (Mandula's, also Mathieu Carbou's). I got frustrated initially because these would not run on my Due, and I finally gave up and bought myself a Uno R4 (Minima). But the problem persists. It seems I keep getting errors associated with Software Seria…

Thanks for the invitation, jremington . Here is the code from Jakub Mandula's PZEM-004T library; it is the Example "Software Serial" (he did not offer any version using 'hardware serial' ). I would like to remove the S_Serial, making it compatible with Dué and Uno R4 platforms. I have already change…

Did you not notice that there is a hardware serial example in the library? examples/PZEMHardSerial/PZEMHardSerial.cpp master /* Copyright (c) 2021 Jakub Mandula Example of using one PZEM module with Hardware Serial interface. ====================================================…

Well, that is a surprise.....the hard serial option is NOT accessible from the drop-down sub-menu Examples from the PZEM-004T library, ⸺ see below [Screenshot from 2025-02-18 20-08-55] So, I will now investigate that further. Thanks for taking the time to look in the directory-tree (it does exist…

[image] polarmolar: the hard serial option is NOT accessible from the drop-down sub-menu Examples from the PZEM-004T library The reason it is not listed in Arduino IDE's menu is that it is not an Arduino sketch (Arduino sketches must contain a .ino file, and this program is instead in a .cpp …

OK, I now understand that the drop-down menu is filtering for items of the pattern *.ino .....that is good to know. But the bottom-line here is (quite literally)... [image] ptillisch: It doesn't compile for the UNO R4 Minima, but I think that is because the library was not written for [that] b…

[image] polarmolar: Because form-factor isn't the primary characteristic of forward / reverse compatibility It is when you are talking about the large number of shields that are designed specifically for the UNO and Mega form factors.

[image] ptillisch: It is when you are talking about the large number of shields that are designed specifically for the UNO and Mega form factors. *What follows below is NOT intended to be argumentative. Rather, I am trying to understand the design philosophy at Arduino, which feels at odds w…

[image] polarmolar: Once that standardized header-placement -and-circuitry-pin-out is in place, additional headers could be added, as long as they did not physically interfere with mating Shields already existing in the "ecosystem". Yeah, that has been done with the GIGA R1 WiFi (which uses t…

Hello, ptillisch , I think that I am getting the gist of the "design philosophy". But please tell me, Why is the Leonardo a Leonardo....and not an Uno?

Hello, In an effort to figure out the Arduino ecosystem's jungle, it seems that I have gotten a little off the beaten track. So here is my effort to steer things back. So, I tried using HardwareSerial.CPP with the Uno R4-Minima. It will compile, and it will upload (mostly) but fails, and throws th…

PZEM-004T (v3) __ compile failure with Due, UnoR4 Minima

Official Hardware UNO Family UNO R4 Minima

ptillisch February 19, 2025, 8:03am 12

It is when you are talking about the large number of shields that are designed specifically for the UNO and Mega form factors.

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PZEM-004T (v3) __ compile failure with Due, UnoR4 Minima

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