![]() If you don't want the super-simple two-wire serial bus (plus power and ground), you can look into SPI which Arduino also supports but requires 5-wires plus one wire per each additional device (or another way to address all of the devices because a "chip enable" pin is required for each device.Īnother option is to use all the various ADCs on your Arduino if you want to go super simple but not all sensors offer an analog-output that you can connect to because I2c and SPI and other serial communication formats have really taken over the market.Ī much easier answer would be possible if you just tell us how many you want. You don't need all 127 possible addresses, you just need enough. But, if you want a lot of the same sensor, you'll need to be sure you can get a version that has enough configurable addresses to meet your needs. The devices may have a few solder pads to change the address over a short range. Once you move the JoyStick the values will change. By clicking the serial monitor you will see the values. ![]() Analog JoySticks are basically potentiometers, so they return values which can be made visible using the provided code in this step. Anyhow, the trouble is, many devices have a pre-programmed number (address) inside. The JoyStick is a analog sensor that can be used to control your arduino. The Arduino has a pair of pins for serial communications called "I2C" and this serial bus can handle up to 127 devices (possible 128 but I think address 0 is forbidden. ![]() P.S.: Please comment if any further information is needed, and thanks for your help. Flame Detection Module (4pin, similar to waveshare model).The hardware I am working with is as follows : (I have to interface at least 3 or 4 of these sensors for the project to be accepted and approved) (and I assume I would have to use ADC Analog to Digital converters for this). The number of sensors is not limited right now, I will also list all the hardware that is available at the end.ġ- How many sensors can an Arduino Uno R3 can handle at the same time?ģ- or if it can handle one sensor at a time?Ĥ- And also, is it better (or easier) to directly use an Arduino to log the data,ĥ- or pass it on to Raspberry Pi and use that to log the data on to the database I can use Raspberry Pi SBCs to help in any part of the process if required. I have to connect a couple of sensors to an Arduino, read their data, log them in a database, and use the database to show the received data on a website. Let me explain first what my project is, and then get to my questions. I must mention I am not asking how to do this, not the programming or interfacing itself, I just want to ask more experienced users about the hardware limitations. I got my final project to make, and I have a couple of questions regarding the Arduino Uno R3, as I have only worked with simulated ATMega on simulating software until now.
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