2025年1月17日 · How? It's NiMh. Plugged into an Arduino, the current will be what the Arduino demands. For accessory devices such as servos, pick off a line between the battery and devices and run it into a buck converter dialed in for 5-6V (in a servo example). I do this all the time and in fact, prefer this to lipo solutions of similar capacity.

2012年2月22日 · The reason I'm interested in dropping the clock frequency of an Arduino Uno to 8MHz is to allow operation down to 3.2V. I want to run between 3.2V - 4.8V because that's the range for the SIM900. It seems like this could be easily done by changing the CLKPR register at runtime. Why does this thread warn that I'd need a new bootloader, however?

2024年11月26日 · The Uno R4 WiFi has two serial interfaces The one named Serial communicates with the PC using the USB cable plugged into the R4. It is used to upload code and to interact with the Serial monitor in the IDE

2011年12月19日 · I'm working on a bit of documentation for the new Uno, and am wondering the purpose of the JP2 jumpers. Judging by the schematic, they connect PB4 to PB6, and PB5 to PB7, on the Atmega16U2. Can anyway say what the purpose of …

2016年4月5日 · UNO ou nano à part les 2 entrées analogiques qu'il est impossible de sortir avec le boîtier 28 pattes il n'y a aucune différence. J'ai aussi lu que si on voulait brancher un shield motor, c'était plus facile avec la Uno.. Uniquement si tu considères qu'Arduino c'est un jeu de Lego où tu empiles les briques.

2016年7月19日 · Hi all, I am new to Arduino & not a programmer by nature. Just working on a DIY project & am having some trouble in writing the code to do what I want. I have an Arduino Uno Rev.3 & I want to do the following: -have 2 separate inputs, on analog input pins 2 & 3 -have 2 separate PWM outputs, on digital pins 5 & 6 Right now, I can get the code to work perfectly for …

2021年9月7日 · Get message "error compiling for board Arduino UNO" when trying to compile example code example from Adafruit BME280 library on one of my computers using 1.8.15.

2014年10月21日 · So here goes - I will have the Arduino controlling bits and pieces (as you do) and it will be hidden away in a box, with some of its inputs and outputs leading to a control board. Somewhere on the control board I intend to have a reset button which I guess I would - somehow - connect to the Reset pin. The UNO specifications says "Reset.

2011年9月21日 · I recently received an Arduino Uno R2. I followed the set up guide on the arduino site for windows but I think there may be a problem with the board. The L led blinks constantly when the board is coneected, I was under the impression that it was only supposed to blink three times when the board was initially connected. I tried loading the blink sketch onto …

2013年2月6日 · The pins on the Arduino can be configured as either inputs or outputs. This document explains the functioning of the pins in those modes. While the title of this document refers to digital pins, it is important to note that vast majority of Arduino (Atmega) analog pins, may be configured, and used, in exactly the same manner as digital pins.