{ "ok": true, "data": { "title": "EP-0076", "rev_id": 11059, "updated_at": "2021-08-27T11:37:40+00:00", "chunk_count": 13, "chunks": [ { "title": "EP-0076", "rev_id": 11059, "heading_path": "", "chunk_index": 0, "content": "# EP-0076", "char_count": 9, "token_estimate": 3 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "RPI-ADS1115-ADC-Module", "chunk_index": 1, "content": "
\n\"Ads1115main.jpg\"\n
Ads1115main.jpg<\/figcaption>\n<\/figure>", "char_count": 166, "token_estimate": 42 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Description", "chunk_index": 2, "content": "The ADS1115 are precision analog-to-digital converters (ADCs) with 16 bits of resolution offered in an ultra-small, an MSOP-10 package.\nData are transferred via an I2C-compatible serial interface, four I2C slave addresses can be selected, it operate from a single power supply at 3.3V.\nIt can be used to detect analog signal and convert it to digital signal.\nYou can attach a joy stick or other analog sensor such as NTC,temperature, dust sensor and so on.", "char_count": 456, "token_estimate": 114 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Compatibility List", "chunk_index": 3, "content": "- Compatibility\n\n| Platform | ADS1115-ADC Module | Notes |\n|-----------------------------|--------------------|-------|\n| Raspberry Pi 3 Model B Plus | √ | |\n| Raspberry Pi zero | √ | |\n| Raspberry Pi zero W | √ | |\n| Raspberry Pi 3 Model B | √ | |\n| Raspberry Pi 2 Model B | √ | |\n| Raspberry Pi Model B+ | × | |\n| | | |", "char_count": 567, "token_estimate": 142 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Features", "chunk_index": 4, "content": "| Parameters | Values |\n|-------------------------|-----------------------------------------|\n| Size: | 65.0mm x 30.0mm x 18.0mm |\n| Power Supply | 3.3v |\n| Analog Input Voltage | GND to VDD |\n| PROGRAMMABLE DATA RATE: | 8SPS to 860SPS |\n| INTERNAL LOW-DRIFT: | VOLTAGE REFERENCE |\n| INTERNAL PGA | Available |\n| Resolution | 16-bit |\n| I2C™ INTERFACE: | Pin-Selectable Addresses |\n| Channels Number | 4 SINGLE-ENDED OR 2 DIFFERENTIAL INPUTS |\n| PROGRAMMABLE COMPARATOR | 2\/3 \\~ 16 |\n| INTERNAL NTC Support | Available |", "char_count": 909, "token_estimate": 228 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Mechanical Drawing", "chunk_index": 5, "content": "\"Ads1115machinical.jpg\"\n==Schematic Diagram== \"AD_transformation.jpg\"\n==Gallery==", "char_count": 245, "token_estimate": 62 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Mechanical Drawing", "chunk_index": 6, "content": "| | | | |\n|-----------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|-----------------------------------------------------------------------------------|\n|
\n \"Ads1115main.jpg\"\n
Ads1115main.jpg<\/figcaption>\n <\/figure> |
\n \"Ads111503.jpg\"", "char_count": 1122, "token_estimate": 281 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Mechanical Drawing", "chunk_index": 7, "content": "
Ads111503.jpg<\/figcaption>\n <\/figure> |
\n \"Ads111502.jpg\"\n
Ads111502.jpg<\/figcaption>\n <\/figure> |
", "char_count": 1001, "token_estimate": 251 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Mechanical Drawing", "chunk_index": 8, "content": "\"Ads111504.jpg\"\n
Ads111504.jpg<\/figcaption>\n <\/figure> |", "char_count": 742, "token_estimate": 186 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "How to wire up", "chunk_index": 9, "content": "Just Plug into GPIO with this module.\n\n- NOTE: Please be ware of the No.1 Pin is fit for your GPIO No.1 Pin.\n\n\"Ads111501.jpg\"\n==How to get analog data==\n\n- All steps are available that we've consumed that you have already flashed the newest image file into your TF card, and your RaspberryPi is powered on.\n- Modify \/boot\/config.txt file and add those parameters to enable ADC module's driver:\n\n`sudo vim.tiny \/boot\/config.txt`\n\ndtparam=i2c_arm=on\n\nSave it and reboot your raspberry Pi.\n\\* Python code to use the ADS1015 and ADS1115 analog to digital converters with a Raspberry Pi or BeagleBone black.\n\n- To install the library from source (recommended) run the following commands on a Raspberry Pi or other Debian-based OS system:\n\n\n\nsudo apt-get install git build-essential python-dev\n cd ~\n git clone https:\/\/github.com\/adafruit\/Adafruit_Python_ADS1x15.git\n cd Adafruit_Python_ADS1x15\n sudo python setup.py install\n\n- Alternatively you can install from pip with:\n\n`sudo pip install adafruit-ads1x15`\n\n- Change your work directory to Adafruit_Python_ADS1x15\/example as following command:", "char_count": 1188, "token_estimate": 297 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "How to wire up", "chunk_index": 10, "content": "`cd ~\/Adafruit_Python_ADS1x15\/examples`\n`sudo python simpletest.py`\n\n- You will see a chart like following picture:\n\n\"Ads1115-result.jpg\"\n\n- Do not panic when you see this picture:\n\n\"Adspic1.jpg\"\n\\*Remove the jumper from NTC_EN to AIN0, it will be back to normal.\n\"Adspic2.jpg\"\nHave fun!", "char_count": 491, "token_estimate": 123 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "Official Documents", "chunk_index": 11, "content": "- Datasheet:\n\n![](Ads1115.pdf \"Ads1115.pdf\")", "char_count": 46, "token_estimate": 12 }, { "title": "EP-0076", "rev_id": 11059, "heading_path": "FAQ", "chunk_index": 12, "content": "- Question: how to detect this module's address ?\n - Answer: open a terminal and use this command :\n\n`i2cdetect -y 1`\nYou will see the address of your ADS1115's address, by the way, you'd better enable i2c function first.", "char_count": 228, "token_estimate": 57 } ] } }