Python library for Seeedstudio Grove devices

Seeed Studio

Last update: Dec 17, 2022

Overview

grove.py

Python library for Seeedstudio Grove Devices on embeded Linux platform, especially good on below platforms:

Architecture

To operate grove sensors, the grove.py depends many hardware interface libraries such as mraa/upm/smbus2.

Installation

For beginner or library user only, please install with online method.
For developer or advanced user, please install dependencies and then install grove.py with source code.

Online install

install/update all dependencies and latest grove.py

curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -

Install grove.py

From source code

git clone https://github.com/Seeed-Studio/grove.py
cd grove.py
# Python2
sudo pip install .
# Python3
sudo pip3 install .

Usage

Basic GPIO Input & Output demo

import time
from grove.gpio import GPIO

led = GPIO(12, GPIO.OUT)
button = GPIO(22, GPIO.IN)

while True:
    if button.read():
        led.write(1)
    else:
        led.write(0)
    time.sleep(0.1)

See more demos and how to run

API Documentation

click here

how to update me

Contribution

Check list for adding a new grove device, for simple, take grove_led as a example.

Add a Class in the python source file, and export with __all__ =
Code sytle PEP8 is recommanded
The python source could run directly with python and python3
Add demo code at the near top of source file
The demo code could run directly with someone python/python3 IDE.
Add document to class and it's member and show the result by refering to API document
Add a command item in setup.py console_scripts list, take effect by install again
Add a item to command table in Usage Doc
If the command need argument but not specified, please list available arguments.
If specified invalid argument, also output usage document then exit.

Comments

Unable to install dependencies upm and mraa on Raspberry Pi Bullseye

Possibly related to issue #46, I can't get the dependencies upm and mraa installed:

sudo apt install python3-mraa python3-upm
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3-mraa : Depends: libjson-c3 (>= 0.10) but it is not installable
                Depends: libmraa1 but it is not going to be installed
                Depends: libpython3.5 (>= 3.5.0~b1) but it is not installable
 python3-upm : Depends: libmraa1 but it is not going to be installed
               Depends: libpython3.5 (>= 3.5.0~b1) but it is not installable
               Depends: libupm1 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

opened by Patrick257 6

Problem opening multiple i2c busses at the same time

in i2c.py the line #51

Bus.instance = smbus.SMBus(bus)

causes problems when trying to open two distinct i2c busses from the same app. in our case both calls would open a device on the same i2c bus.

changing to

self.instance = smbus.SMBus(bus)

fixed the problem.

using respberry py at the paj7620 sensor on i2c bus 1 & 3

opened by nikolozka 3
ADC.version() - wrong implementation for register 0x03

@property def version(self): return self.read_register(0x3)

Reading from this register doesn' t return a firmware version - int value. Reapeated reading from this register returns following string: GROVE BASE HAT RPI

opened by pezi 2
Can't install lib on Jetson Nano

Hello,

When I use "curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -" on Jetson nano, the output informs me as:

Err:18 https://seeed-studio.github.io/pi_repo unknown Release
404 Not Found [IP: 185.199.109.153 443]

Any suggestion?

Thanks!

opened by shijiong 2

curl installation fails due to libmraa1 and libbma456

When I try to use the online option (curl) to install grove.py I get the following error:

fjp@ubuntu:~/git/grove.py$ curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -
Warning: apt-key output should not be parsed (stdout is not a terminal)
Hit:1 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Hit:2 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease                                       
Hit:3 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease                                     
Hit:4 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease                
Hit:5 https://seeed-studio.github.io/pi_repo stretch InRelease                      
Hit:6 http://ports.ubuntu.com/ubuntu-ports bionic-proposed InRelease
Hit:7 http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu bionic InRelease
Hit:8 http://packages.ros.org/ros/ubuntu bionic InRelease     
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
N: Skipping acquire of configured file 'main/binary-arm64/Packages' as repository 'https://seeed-studio.github.io/pi_repo stretch InRelease' doesn't support architecture 'arm64'
Enable I2C interface ...
I2C interface enabled...
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python-rpi.gpio is already the newest version (0.6.3-1ubuntu4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-rpi.gpio is already the newest version (0.6.3-1ubuntu4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libmraa1
dpkg-query: package 'libmraa1' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libmraa1
dpkg-query: package 'libmraa1' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libmraa1
dpkg-query: package 'libmraa1' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
-------------------------------------------------------
     Grove.py installation FAILED, FAILED, FAILED      
-------------------------------------------------------

I think this happens because libmraa1 cannot be located.

Installing libmraa from here with the following commands:

sudo add-apt-repository ppa:mraa/mraa
sudo apt-get update
sudo apt-get install libmraa2 libmraa-dev libmraa-java python-mraa python3-mraa node-mraa mraa-tools

After that, I executed the curl command again and got a little further but the installation of grove.py stilll fails because of libbma456:

fjp@ubuntu:~/git/grove.py$ curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -
Warning: apt-key output should not be parsed (stdout is not a terminal)
Hit:1 http://ports.ubuntu.com/ubuntu-ports bionic InRelease
Get:2 http://ports.ubuntu.com/ubuntu-ports bionic-updates InRelease [88.7 kB]                             
Hit:3 https://seeed-studio.github.io/pi_repo stretch InRelease                                                       
Get:4 http://ports.ubuntu.com/ubuntu-ports bionic-backports InRelease [74.6 kB]
Get:5 http://ports.ubuntu.com/ubuntu-ports bionic-security InRelease [88.7 kB]
Get:6 http://ports.ubuntu.com/ubuntu-ports bionic-proposed InRelease [242 kB]
Get:7 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main arm64 DEP-11 Metadata [290 kB]
Get:8 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main DEP-11 48x48 Icons [73.8 kB]
Get:9 http://ports.ubuntu.com/ubuntu-ports bionic-updates/main DEP-11 64x64 Icons [147 kB]     
Get:10 http://ports.ubuntu.com/ubuntu-ports bionic-updates/universe arm64 DEP-11 Metadata [259 kB]
Get:11 http://ports.ubuntu.com/ubuntu-ports bionic-updates/universe DEP-11 48x48 Icons [207 kB]     
Get:12 http://ports.ubuntu.com/ubuntu-ports bionic-updates/universe DEP-11 64x64 Icons [445 kB]
Get:13 http://ports.ubuntu.com/ubuntu-ports bionic-backports/universe arm64 DEP-11 Metadata [7976 B]
Get:14 http://ports.ubuntu.com/ubuntu-ports bionic-security/main arm64 DEP-11 Metadata [32.6 kB]
Get:15 http://ports.ubuntu.com/ubuntu-ports bionic-security/main DEP-11 48x48 Icons [17.6 kB]
Get:16 http://ports.ubuntu.com/ubuntu-ports bionic-security/main DEP-11 64x64 Icons [41.5 kB]
Get:17 http://ports.ubuntu.com/ubuntu-ports bionic-security/universe arm64 DEP-11 Metadata [37.0 kB]
Get:18 http://ports.ubuntu.com/ubuntu-ports bionic-security/universe DEP-11 48x48 Icons [16.4 kB]
Get:19 http://ports.ubuntu.com/ubuntu-ports bionic-security/universe DEP-11 64x64 Icons [111 kB]  
Get:20 http://ports.ubuntu.com/ubuntu-ports bionic-proposed/main arm64 DEP-11 Metadata [4612 B] 
Get:21 http://ports.ubuntu.com/ubuntu-ports bionic-proposed/universe arm64 DEP-11 Metadata [212 B]
Hit:22 http://ppa.launchpad.net/mraa/mraa/ubuntu bionic InRelease                                                                                                                        
Hit:23 http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu bionic InRelease                                                                                                           
Hit:24 http://packages.ros.org/ros/ubuntu bionic InRelease                                                                                                                               
Fetched 2185 kB in 11s (198 kB/s)                                                                                                                                                        
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
N: Skipping acquire of configured file 'main/binary-arm64/Packages' as repository 'https://seeed-studio.github.io/pi_repo stretch InRelease' doesn't support architecture 'arm64'
I2C interface enabled...
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python-rpi.gpio is already the newest version (0.6.3-1ubuntu4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-rpi.gpio is already the newest version (0.6.3-1ubuntu4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  libmraa1
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 59.1 kB of archives.
After this operation, 179 kB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/mraa/mraa/ubuntu bionic/main arm64 libmraa1 arm64 1.9.0-1~ubuntu18.04 [59.1 kB]
Fetched 59.1 kB in 10s (5800 B/s)   
Selecting previously unselected package libmraa1.
(Reading database ... 211870 files and directories currently installed.)
Preparing to unpack .../libmraa1_1.9.0-1~ubuntu18.04_arm64.deb ...
Unpacking libmraa1 (1.9.0-1~ubuntu18.04) ...
Setting up libmraa1 (1.9.0-1~ubuntu18.04) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python-mraa is already the newest version (2.0.0-1~ubuntu18.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  libupm1
The following NEW packages will be installed:
  libupm1 python-upm
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 3962 kB of archives.
After this operation, 39.3 MB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/mraa/mraa/ubuntu bionic/main arm64 libupm1 arm64 1.7.1-1~ubuntu18.04 [656 kB]
Get:2 http://ppa.launchpad.net/mraa/mraa/ubuntu bionic/main arm64 python-upm arm64 1.7.1-1~ubuntu18.04 [3307 kB]
Fetched 3962 kB in 11s (352 kB/s)     
Selecting previously unselected package libupm1.
(Reading database ... 211875 files and directories currently installed.)
Preparing to unpack .../libupm1_1.7.1-1~ubuntu18.04_arm64.deb ...
Unpacking libupm1 (1.7.1-1~ubuntu18.04) ...
Selecting previously unselected package python-upm.
Preparing to unpack .../python-upm_1.7.1-1~ubuntu18.04_arm64.deb ...
Unpacking python-upm (1.7.1-1~ubuntu18.04) ...
Setting up libupm1 (1.7.1-1~ubuntu18.04) ...
Setting up python-upm (1.7.1-1~ubuntu18.04) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-mraa is already the newest version (2.0.0-1~ubuntu18.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  python3-upm
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 3264 kB of archives.
After this operation, 33.5 MB of additional disk space will be used.
Get:1 http://ppa.launchpad.net/mraa/mraa/ubuntu bionic/main arm64 python3-upm arm64 1.7.1-1~ubuntu18.04 [3264 kB]
Fetched 3264 kB in 12s (283 kB/s)      
Selecting previously unselected package python3-upm.
(Reading database ... 212946 files and directories currently installed.)
Preparing to unpack .../python3-upm_1.7.1-1~ubuntu18.04_arm64.deb ...
Unpacking python3-upm (1.7.1-1~ubuntu18.04) ...
Setting up python3-upm (1.7.1-1~ubuntu18.04) ...
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libbma456
dpkg-query: package 'libbma456' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libbma456
dpkg-query: package 'libbma456' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libbma456
dpkg-query: package 'libbma456' is not installed and no information is available
Use dpkg --info (= dpkg-deb --info) to examine archive files,
and dpkg --contents (= dpkg-deb --contents) to list their contents.
-------------------------------------------------------
     Grove.py installation FAILED, FAILED, FAILED      
-------------------------------------------------------

I couldn't find out how to install the missing dependency libbma456. Any ideas how I can fix this? Thank you!

opened by fjp 2

"grove_temperature_humidity_sensor" command is not found.

I want to use Temperature & Humidity Sensor(DHT11).

I installed grove.py following the steps. But [grove_temperature_humidity_sensor] Command is not found. Also, I can't find the source code(grove_temperature_humidity_sensor.py).

[grove_temperature_humidity_bme680] Command and [grove_temperature_humidity_sht31] Command can be confirmed.

Please let us know if you know why it doesn't work. Thank you very much.

opened by tatsu1225 2

issue with UPM: No module named UPM

Hi,

I have an rpi model 3b pi@mark2:~/python/grove.py $ uname -a Linux mark2 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l GNU/Linux

pi@mark2:~/python/grove.py $ lsb_release -a No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.8 (stretch) Release: 9.8 Codename: stretch

The install script seems to run succesffully:

#######################################################

  Lastest Grove.py from github install complete   !!!!!

#######################################################

mraa and upm are installed on my pi:

pi@mark2:~/python/grove.py $ dpkg -s libupm1
Package: libupm1
Status: install ok installed
Priority: optional
Section: libs
Installed-Size: 4238
Maintainer: Flavian Costin Manea <[email protected]>
Architecture: armhf
Source: upm
Version: 1.6.0-git20190404-pi20190404
Depends: libc6 (>= 2.15), libgcc1 (>= 1:3.5), libjpeg62-turbo (>= 1.3.1), libmraa1, libstdc++6 (>= 6)
Description: Sensor/Actuator repository for MRAA (runtime)
 UPM is a high level repository for sensors that use MRAA. Each sensor
 links to MRAA and are not meant to be interlinked although some
 groups of sensors may be.
 .
 This package contains the library used at runtime.
Homepage: http://iotdk.intel.com/docs/master/upm/
pi@mark2:~/python/grove.py $ dpkg -s libmraa1
Package: libmraa1
Status: install ok installed
Priority: optional
Section: libs
Installed-Size: 183
Maintainer: Tom Ingleby <[email protected]>
Architecture: armhf
Source: mraa
Version: 1.9.0-git20190404-pi20190404
Depends: libc6 (>= 2.15), libjson-c3 (>= 0.10)
Description: userspace I/O library (runtime)
 mraa (libmraa) is library for interacting with userspace I/O on GNU/Linux
 platforms. The library abstracts platform quirks away from the end user.
 Currently interfaces supported include GPIO/PWM/I2C/SPI.
 .
 This package contains the library used at runtime.
Homepage: http://iotdk.intel.com/docs/master/mraa/

Yet when I try to run grove_temperature_sensor I get this error:

Traceback (most recent call last):
  File "/usr/local/bin/grove_temperature_sensor", line 11, in <module>
    load_entry_point('grove.py==0.6', 'console_scripts', 'grove_temperature_sensor')()
  File "/usr/local/lib/python3.7/site-packages/pkg_resources/__init__.py", line 487, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/local/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2728, in load_entry_point
    return ep.load()
  File "/usr/local/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2346, in load
    return self.resolve()
  File "/usr/local/lib/python3.7/site-packages/pkg_resources/__init__.py", line 2352, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/local/lib/python3.7/site-packages/grove/grove_temperature_sensor.py", line 31, in <module>
    from grove.factory import Factory
  File "/usr/local/lib/python3.7/site-packages/grove/factory/__init__.py", line 2, in <module>
    from .factory import *
  File "/usr/local/lib/python3.7/site-packages/grove/factory/factory.py", line 38, in <module>
    from grove.temperature import *
  File "/usr/local/lib/python3.7/site-packages/grove/temperature/__init__.py", line 2, in <module>
    from .mcp9808 import TemperMCP9808
  File "/usr/local/lib/python3.7/site-packages/grove/temperature/mcp9808.py", line 38, in <module>
    from upm.pyupm_mcp9808 import MCP9808
ModuleNotFoundError: No module named 'upm'

this is with version 0.6. Is there any way you can help me with this?

Kind regards, Chris

opened by chrisovergaauw 2

grove_temperature_humidity_sensor.py

Hey, why is this code not on the master branch? https://github.com/Seeed-Studio/grove.py/blob/8205879e6e96be4f9c9159b01c347ce1be1be2e5/grove/grove_temperature_humidity_sensor.py

The sensor documentation refers to non-existing files. http://wiki.seeedstudio.com/Grove-TemperatureAndHumidity_Sensor/

The DHT11 sensor cannot be tested without this example.

opened by Desseres 2
GPS module only reads US satellites

In the GPS module code, the only source that is detected is GP, the US GPS constellation. The Air530 sensor supports other constellations, but this library is unable to detect them.

The logic in the read function should ignore the 2 characters for the sender field at the start of the NMEA message to support other constellations.

opened by jimbobbennett 1
Trouble installing grove.py
Hello,

I've been playing around with an OKdo Air Quality kit and I seem to have fallen at an early hurdle.

The installation of grove.py on to a Pi using the command below seems to go well until the very end where I am told that the installation failed.

curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -

main: line 107: pip: command not found main: line 108: pip: command not found main: line 107: pip: command not found main: line 108: pip: command not found main: line 107: pip: command not found main: line 108: pip: command not found

Grove.py installation FAILED, FAILED, FAILED

Any thoughts on how to solve this would be awesome.

regards,
opened by grantforster1979 1
Adding install of pip for RPi

On a clean Raspberry Pi, this installer fails as it depends on Pip, which is not installed by default on Raspberry Pi OS Lite.

This change installs pip for Python 2 and Python 3.

This should fix #28

opened by jimbobbennett 0
Can't Run Examples

It seems that mraa and upm libraries and not maintained anymore. So you cannot use mraa and upm related Grove modules. FIX THIS BLOODY ISSUE AND DO NOT CLOSE IT AGAIN UNTIL IT IS FIXED.

opened by dooley-ch 4

I2C error (Please check if the I2C device insert in I2C of Base Hat)

I'm getting this I2C error which I can't seem to figure out why:

raceback (most recent call last):
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 296, in _ReadByte
    read_data = self.bus.read_byte_data(self.addr,Reg)
  File "/usr/local/lib/python3.9/dist-packages/smbus2/smbus2.py", line 433, in read_byte_data
    ioctl(self.fd, I2C_SMBUS, msg)
OSError: [Errno 121] Remote I/O error

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pi/logic/./tests/sunlight_test.py", line 16, in <module>
    main()
  File "/home/pi/logic/./tests/sunlight_test.py", line 7, in main
    SI1145 = seeed_si114x.grove_si114x()
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 184, in __init__
    assert self.Begin() , "Please check if the I2C device insert in I2C of Base Hat"
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 194, in Begin
    if self._ReadByte(SI114X_PART_ID) != 0X45:
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 298, in _ReadByte
    raise  OSError("Please check if the I2C device insert in I2C of Base Hat")
OSError: Please check if the I2C device insert in I2C of Base Hat
Exception ignored in: <function grove_si114x.__del__ at 0xb659cad8>
Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 186, in __del__
    self._WriteByte(SI114X_COMMAND, SI114X_RESET)
  File "/home/pi/.local/lib/python3.9/site-packages/seeed_si114x.py", line 306, in _WriteByte
    raise OSError("Please check if the I2C device insert in I2C of Base Hat")
OSError: Please check if the I2C device insert in I2C of Base Hat

The code I'm running is from: https://github.com/Seeed-Studio/Seeed_Python_SI114X/blob/master/examples/BasicRead.py but the error message indicates that it's within this library? (please correct me if I'm wrong)

I found some sources claiming that the "OSError: Please check if the I2C device insert in I2C of Base Hat" is due to incorrect wiring but I don't see how this would be the case when using the Pi hat..
I've checked with "i2cdetect -y 1" to make sure the device is recognised (it is)
The above error ("OSError: [Errno 121] Remote I/O error") goes away when I type in the I2C device address manually (in my case 0x53), but the bottom error ("OSError: Please check if the I2C device insert in I2C of Base Hat") remains..
I'm using this module from grove: https://wiki.seeedstudio.com/Grove-Sunlight_Sensor/
I've tried clean-installing from scratch and only downloading the required libs for the hat+sensor
I've also tried installing from source (this repo) instead of fetching directly from pip
I've tried using a different Pi (same specs) just to be sure it's not an issue with my pi

Unfortunately I don't have any other I2C devices I can try.

i2cdetect -y 1 output:

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         08 -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- 53 -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --

I'm running raspbian 11 (bullseye) on a raspberry pi 4

opened by duart38 0

grove/grove_pwm_buzzer.py missing

But both the https://github.com/Seeed-Studio/grove.py/blob/master/setup.py script as well as various documentation (e.g. https://wiki.seeedstudio.com/Grove_Base_Hat_for_Raspberry_Pi/#usage) prominently mention grove_pwm_buzzer.

I cannot find grove/grove_pwm_buzzer.py it in the current master branch. Only a pull request from some time back. #55 Am I doing something wrong or has the file been deleted for some reason?

opened by trothe 1
Problem in i2c.py opening multiple i2c busses
This issue was reported by @nikolozka in Issue #12.

The issue is still in the code and I would like to submit a PR for it, however, I'm trying to understand the reasoning behind this.

class Bus: instance = None MRAA_I2C = 0 def __init__(self, bus=None): ... skipping code ... if not Bus.instance: Bus.instance = smbus.SMBus(bus) ... rest of code ...

Why is instance being used as a class attribute? It effectively makes the Bus class a singleton class. Are there any advantages to doing this that I'm missing?

To reproduce this problem:

Connect a Base Hat to the reTerminal.

Use an analog sensor such as the Grove Soil Humidity sensor with the ADC of the Base Hat.

Create a new I2C bus 4 for the reTerminal (using this example).

Connect an I2C sensor such as the AHT20 temperature & humidity sensor to the base hat.

Try to read from both sensors.

File "/usr/local/lib/python3.7/dist-packages/grove/grove_temperature_humidity_aht20.py", line 44, in read self.bus.write_i2c_block_data(self.address, 0x00, [0xac, 0x33, 0x00]) File "/usr/local/lib/python3.7/dist-packages/smbus2/smbus2.py", line 643, in write_i2c_block_data ioctl(self.fd, I2C_SMBUS, msg) OSError: [Errno 6] No such device or address
opened by maujac 1
Interface Grove Ultrasonic Sensor without shield

Hi, I am working on interfacing grove ultra sonic sensor v2.0 with my Jetson NX board. I dont have a base hat/shielf/I2C adapter. I want to interface the sensor directly with Jetson board.

I started with looking into : https://wiki.seeedstudio.com/Grove-Ultrasonic_Ranger/ where they have mentioned "If we don't have Grove Base Shield, We also can directly connect Grove_Ultrasonic_Ranger to Seeeduino as below." But this example C library will not work since it uses arduino library.h.

Then I started to work with code in this git: https://github.com/Seeed-Studio/grove.py/blob/master/grove/grove_ultrasonic_ranger.py Like I mentioned I dont have base shield so I replaced (pin number) with my GPIO pin and got the below error.

Check whether I2C enabled and Grove Base Hat RPi or Grove Base Hat RPi Zero inserted

So i had to remove the lines 98 to 100 and directly configure my pin number and try. It is just printing "Detecting distance.." and nothing else.

It would be really helpful to get some inputs on this.

Regards Niranjan

opened by niranjanravilevelup 0

Owner

Seeed Studio

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