Last modification: 12.03.2024 Contributor: Marian Minar
Dont forget to add 
if you were satisfy with the software!
Twitter: News and statuses
NEW! SourceForge.net:
- Oscilloscope-like application eCScope for Raspberry PI 3+ (32bit Raspbian) based on INA260 chips and built with the Ecomet-i2c-sensors Python library.
Project eCScope was created to show progress in development. Insert the #eCScope keyword into the issue section.
PyPi module: ecomet-i2c-sensor
Current release: 0.1.8
New features
- AXP209 driver added (X-Powers)
- TSL25911 driver added (Osram-AMS)
- add i2c_interface parameter as switch for libraries Adafruit_PureIO or smbus2
- Add Allwiner CPU A10 driver, olimex OLinuXino A10
- update load_config_yaml
Python3 library - Stable status
pip install ecomet-i2c-sensorsTest release: 0.1.9.post1
Python3 library - Alpfa status
pip3 install -i https://test.pypi.org/simple/ecomet-i2c-sensorsWiki Hardware prototypes boards: link
Scope: The Driver for I2C Chip maintenance from Raspberry PI 1B+ and above and AllWinner CPU. This code tools contains python & free pascal code focused to I2C communication of raspberry pi with IOT modules.
- tested at Raspberry PI 1B+, 3B+, 4B+, 4CM
- tested at AllWinner CPU H616, mangopi MCore-H616, Orange PI Zero2
Current CHIP maintained:
- AMS-ScioSense AS3935
- AMS-OSRAM TSL25911
- EEPROM Chip 24c01,24c02,24c04,24c08,24c16,24c32,24c64,24c128,24c256,24c512,24c1024
- Measurement Specialties, TE Connectivity MS5637,HTU21D
- Microchip EMC2301
- NXP Semiconductor PCA9632 (could be modified for PCA9624,PCA9635PW,PCA9685,PCA9955B,PCA9956B) PCA9557
- Panasonic SN-GCJA5
- Renesas ISL28022
- Sensirion SGP40
- Solomon Systech SSD1309
- Texas Instruments HDC1080,PCA9557,INA226,INA260
- X-Powers AXP209
List of modules:
- AS3935 -> !NEW! Franklin Lightning Sensor
- AXP209 -> PMU (Power Management Unit) Sensor
- EEPROM module -> EEPROM read/write 24cXXX chips
- EMC2301 module -> Fan controller with a PWM fan driver
- HDC1080 module -> High Accuracy Digital Humidity Sensor with Temperature Sensor
- HTU21D module -> Digital Relative Humidity sensor with Temperature output, calculation of Dew Point
- INA226,INA260 module -> Precision Digital Current and Power Monitor With Low-Drift, Precision Integrated Shunt
- ISL2802x module -> will be added python module description
- MS5637 module -> Ultra-compact micro altimeter. Integrated digital pressure sensor (24 bit ΔΣ ADC), Operating range: 300 to 1200 mbar, -40 to +85 °C
- PCA9557 module -> Remote8-Bit I2C and SMBusLow-PowerI/O ExpanderWith Reset andConfigurationRegisters
- PCA9632 module -> 4-bit Fm+ I2C-bus low power LED driver (could be used for motor control)
- SGP40 module -> !NEW! Indoor Air Quality Sensor for VOC Measurements
- SN-GCJA5 -> Laser Type PM Sensor
- SSD1306 module -> SSD1306 is a single-chip CMOS OLED/PLED driver with controller for organic / polymer light emitting diode dot-matrix graphic display system.
- TSL25911 -> Ambient Light Sensor
Software for Chips:
| Chip | Python 3 driver | FPC GUI | Hardware Board | Contributor Notes | Planned work | Requestor Interests |
|---|---|---|---|---|---|---|
| !NEW! AS3935 | yes check | no | ||||
| AXP209 | yes check | no | A10 Olimex | Only partially implemented pdf, check | ||
| EEPROM 24cXXX | yes | no | I01,I02,I03,I04 | currently tested at 24c01,24c04,24c08,24c16,24c32,24c64 | ||
| EMC2301 | yes | yes | I02 | add EMC2302-05 chips in design | ||
| HDC1080 | yes | yes | I03,I04 | |||
| HTU21D | yes | no | I03,I04 | |||
| INA226, INA260 | yes | yes | I01 | |||
| ISL2802x | in progress | no | ||||
| MS5637 | yes | no | I04 | |||
| PCA9557 | yes | no | I01 | |||
| PCA9632 | yes | yes | I04 | |||
| SN-GCJA5 | yes check | no | ||||
| !NEW! SGP40 | yes check | no | ||||
| SSD1306 | yes | no | I01 | |||
| TSL25911 | yes check | no |
Setting of config file for ecomet-i2c-sensors python library:
Library is looking in directory ~/.comet for file config.yaml that contains i2c parameters for custom linux distribution and I2C EEPROM memory setting. Here is a example of config file content:
comet@orangepizero2:~/.comet $ cat config.yaml
--- # The I2C config file
i2c:
smb: i2c-3 # set bus i2c-1
smb_detect: 0..3 # list of monitored smb bus by i2cdetect
eeprom:
ic: '24c01'
slaveaddr: 0x50
writestrobe: 26 # hold pin low to write to eeprom| parameter | sub-parameter | description | example value |
|---|---|---|---|
| smb: | name of active i2c in /dev | i2c-1 | |
| smb_detect: | list of monitored i2c neworks used by command i2c_ecomet_detect | 0..1 | |
| eeprom: | eeprom section | ||
| ic: | 24x00 series of eeprom chip name | '24c01' | |
| slaveaddr: | address of eeprom chip in hex | 0x50 | |
| writestrobe: | GPIO pin number used as CS (chip select) signal for eeprom IC | 26 |
Note: Currently only one eeprom chip could be added.
Alternative command for I2C chip detection:
Here is alternative command to i2cdetect for detection of active I2C chips at I2C bus: i2c_ecomet_detect.py
pi@raspberrypi:~/ecomet_i2c_raspberry_tools/bin $ python3 i2c_ecomet_detect.py
3.9.9 (main, Jan 16 2022, 22:51:22)
[GCC 11.2.0]
ecomet.Board_Platform: INFO Start logging ...
ecomet.Board_Platform: INFO Board platform: RASPBERRY_PI 4B:1.4
ecomet.Board_Platform: INFO Number of I2C buses at the board: 2
ecomet_i2c_sensors.platform.i2c_platform: INFO >>> Testing at bus: 0
ecomet_i2c_sensors.platform.i2c_platform: INFO No Chip connected
ecomet_i2c_sensors.platform.i2c_platform: INFO >>> Testing at bus: 1
ecomet_i2c_sensors.platform.i2c_platform: INFO Default bus number: 1
ecomet_i2c_sensors.platform.i2c_platform: INFO Identified Slaves Chips: 0xc:0x1a:0x2f:0x40:0x50:0x51:0x52:0x53:0x54:0x55:0x56:0x57:0x62:0x70:0x76Requestor Interests: If you would like to reqest some new feature or add some new Chip at the development list let me know by adding issue or by email.