Questions tagged [multiplexer]

A multiplexer lets you select one signal out of a group of (typically) 8 or 16, for both input and output purposes. Use this tag for discussing multiplexer chips.

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Multiple MuxShield 2's connected to a single Arduino Mega

I am working on a project and need alot of toggle buttons to control various things around the house. I connected 5 MuxShield 2's to my Arduino Mega. The first two will serve as inputs and the last ...
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Arduino toggles on multiplexer not working

I am currently working on an Arduino project that needs alot of on/off toggles. Because my Arduino Mega does not have enough pins I connected 5 multiplexers to it (the MuxShield 2's). The problem is ...
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Arduino -> Processing conversion: creating mux channels

As the title alludes to, I'm in the process of converting an Arduino sketch to a Processing sketch. So far, mostly pretty straightforward. I'm running into an issue with creating an array of ints for ...
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Multiple MPU9250 Synced

I am interested in collecting data from 3 MPU9250 via I2C communication protocol. As I've read, I can collect measurements on the same I2C Bus from up to two MPUs. However, how can I collect Synced ...
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How to read from multiple multiplexers (CD74HC4067) with a library

I need to read alot of buttons and analog inputs for my project (60 buttons 15 faders) and there fore need to use multiplexers. But most mux libraries seems to only support one mux, am i wrong?
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How to get more than the 16 Analog INs on a Arduino Mega for using like 24 piezo sensors

i bought an Arduino Mega2560 and flashed it with usbmidi. So now it comes up as a midi device. I need more than those 16 analog ins to be able to put all my 24 piezo sensors into it to receive midi ...
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102 views

Using TCA9548A to read 30 ADCs

I want to read 30 differential ended analog sensors. Using ADS1115 16 bit this is possible, but we end up having only 4 address on I2C, so i chose TCA9548A breakout board with 8 I2C multiplex channels,...
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Using Capacitive Sensing Library with a 74HC4067 multiplexer

I'm trying to use the Capacitive Sensing Library by Paul Badger in conjunction with one or more 74HC4067 multiplexers to achieve a lot of capacitive touch inputs. I came across this youtube video ...
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Why do the LEDs visibly flicker?

The aim of the project was to be able to show two "kinds" of LEDs in a 8x8 single color LED matrix. I used a MAX7219 chip to drive the LEDs using my Arduino UNO R3 as the driver (with the usual ...
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Can I hook up an Analog multiplexer to Arduino Nano?

I want to increase the analogue inputs for the Nano. So is it possible to hook up a CD74HC4067 analog multiplexer to it? Thanks.