Sparkfun Electronics Qwiic Shield Bedienungsanleitung

Qwiic Shield for Arduino

Note: The shield includes R3 Arduino headers, but they are not pre-soldered onto the board, so

some assembly will be required when putting the shield together. The image below shows the shield

after the header has been soldered to the PCB to.

The Qwiic Shields have 4x Qwiic connect ports, all on the same I2C bus. Logic level converters are

included for the Qwiic connect port’s SDA and SCL lines so you do not have to worry about using

the Qwiic system with 5V (or 3.3V) devices.

In addition to this, a large prototyping area is included. As shown in the image below, the Qwiic

shield for Arduino has a few neat features such as a few 3-by-1 rails to help with prototyping.

There are also buses for ground, 5V and 3.3V on the shield for Arduino outlined below.

The headers also allow for every pin on the microcontroller of your choice to still be accessed

through the female headers.

Qwiic Shield for Photon

Note: The shield includes headers, but they are not pre-soldered onto the board, so some assembly

will be required when putting the shield together. The image below shows the shield after the header

has been soldered to the PCB to.

The Qwiic shield for the Particle Photon also includes 4x Qwiic connect ports, a prototyping area,

and buses for 3.3V and ground. However, they are much smaller. The Photon is a 3.3V system and

assumes that you are using 3.3V devices so logic level conversion is not included in the design. If

you are using a 5V based I2C device, be sure to grab a bi-directional logic level converter.

Hardware Assembly

To get started with your Qwiic shield, all you’ll need to do is solder on headers. For a detailed

description of how to do this with Arduino shields, simply check out our Arduino shield tutorial. It’ll

get you started with attaching those headers to your shield properly. These tips are also useful when

installing the headers for the Qwiic shield for Photon.

Once you’ve attached headers to your Qwiic shield, you’re ready to plug it into your Qwiic enabled

board of choice. Below is an example of a few Qwiic sensors daisy chained to the Qwiic shield for

Arduino. If you need to mount a Qwiic sensor, just grab a few standoffs and screws. Plug in any

Qwiic enabled board and get going!

Qwiic HAT for Raspberry Pi

The Qwiic HAT has 4 Qwiic connect ports, all on the same I2C bus. In addition to this, some of the

pins on the Raspberry Pi are broken out for the user.

Hardware Assembly

To get started with your Qwiic HAT, simply plug it into the headers on the Raspberry Pi, make sure

that the “USB” arrow on the HAT is pointing towards the USB on the Raspberry Pi.

Once the HAT is plugged in, you can start plugging in any Qwiic enabled sensors you might have.

I2C on Raspberry Pi - OS and Library Install

If you’re starting from scratch, with a blank microSD card, you’ll want to install Raspbian. If you’ve

already got a working Raspbian system, skip ahead to step 3.

1. Download the NOOBS image. As of this writing, it’s at version 2.4.4.

2. Follow the official installation instructions.

3. Follow the Wiring Pi Instructions to get git, update and upgrade your Rasbpian packages,

then install WiringPi.

Be patient –each of these steps takes a while.

Once you’ve got wiringPi installed, run the gpio commands shown below.

COPY CODE>gpio -v

>gpio readall

It should respond with some information about the wiringPi version and the Pi that its running on,

then draw a table illustrating the configuration for the pins in the 40-pin connector.

Configuration

Like the SPI peripheral, I2C is not turned on by default. Again, we can use raspi-config to enable it.

1. Run sudo raspi-config.

2. Use the down arrow to select 5 Interfacing Options

3. Arrow down to P5 I2C.

4. Select yes when it asks you to enable I2C

5. Select OK and then Finish

Once you return to terminal, enter this command

COPY CODE>ls /dev/*i2c*

The Pi should respond with

COPY CODE/dev/i2c-1

Which represents the user-mode I2C interface.

Utilities

There is a set of command-line utility programs that can help get an I2C interface working. You can

get them with the apt package manager.

COPY CODEsudo apt-get install -y i2c-tools

In particular, the i2cdetect program will probe all the addresses on a bus, and report whether any

devices are present. Call i2cdetect -y 1 to probe the first I2C bus, which is what the Qwiic HAT is

connected to.

COPY CODEpi@raspberrypi:~/$ i2cdetect -y 1

0123456789abcdef

00: -- -- -- -- -- -- -- -- -- -- -- -- --

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

70: -- -- -- -- -- -- -- --

This map indicates that there is a peripheral at address 0x60. We can read and write its registers

using the i2cget, i2cset and i2cdump commands.

Quiic Adapter

There are a few things you should know about the Qwiic system before you go plugging in I2C

devices willy nilly. The first thing to be aware of is that all Qwiic devices run on 3.3V. So if you have

a 5V device and you are not using a stackable breakout board with a logic level converter (such as

the Qwiic Shield for Arduino), you’ll need to grab a logic level converter to boost your signals up to

5V. Also, be aware that all Qwiic devices have pull-up resistors on the I2C lines. So if your device

does not have it, you’ll need to add those in or use the ones on your microcontroller.

The Qwiic adapter is populated with two 4-pin 1mm JST connectors to quickly connect your I2C

devices together. Four plated through holes are broken out for SCL, SDA, 3.3V, and GND. These

pins can be used to convert an old I2C enabled device into a Qwiic enabled board.

Hardware Assembly

There are several different ways to connect your I2C device to the Qwiic adapter. The simplest and

probably cleanest method would be to use headers. This also allows the adapter to be reattached to

a different I2C device in the future. I’ve found that I enjoy the look of the 90 degree male headers on

the Qwiic Adapter, combined with a 90-degree bend in the legs on the female headers I2C device.

However, you can really use any combination you’d like depending on how you want the adapter to

be oriented relative to your I2C enabled board.

Using pliers, snap off a row of 4 pins from the right angle male header. Using diagonal cutters, you

will need to sacrifice one socket in order cut off a row of 4 pins from the female header. Carefully

bend the female header’s pins using the pliers to make a right angle with the I2C device. Solder the

male headers to the Qwiic adapter and the female headers to the I2C device as shown in the image

below.

Once you’ve got headers soldered onto each of your boards, simply plug your adapter into your I2C

enabled device. Using a Qwiic cable, plug your Qwiic adapter into a stackable Qwiic board of your

choice. Assuming that there is example code loaded on your development board, you can now start

reading data from your I2C enabled device!

Inhaltsverzeichnis

Andere Sparkfun Electronics Steuereinheit Handbücher

Sparkfun Electronics

Sparkfun Electronics AD8232 Technisches Dokument

Beliebte Steuereinheit Handbücher anderer Marken

Festo

Festo Compact Performance CP-FB6-E Stücklistenhandbuch

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Bedienungsanleitung

JS Automation

JS Automation MPC3034A Bedienungsanleitung

JAUDT

JAUDT SW GII 6406 Series Kurzanleitung

Spektrum

Spektrum Air Module System Bedienungsanleitung

BOC Edwards

BOC Edwards Q Series Bedienungsanleitung

KHADAS

KHADAS BT Magic Bedienungsanleitung

Etherma

Etherma eNEXHO-IL Bedienungsanleitung

PMFoundations

PMFoundations Attenuverter Bedienungsanleitung

GEA

GEA VARIVENT Bedienungsanleitung

Walther Systemtechnik

Walther Systemtechnik VMS-05 Bedienungsanleitung

Altronix

Altronix LINQ8PD Montageanleitung

Eaton

Eaton Powerware Series Bedienungsanleitung

WAGO

WAGO 750-407/040-000 Bedienungsanleitung

Sony

Sony CCU-590 Bedienungsanleitung

Graco

Graco 25D614 Bedienungsanleitung

Task Force Tips

Task Force Tips YE-RF-900 Programmierhandbuch

Shini

Shini SPV-U Series Bedienungsanleitung