What example code did you use? i am using rpi3 with the adafruit example code and can't get the device to come up with i2cdetect -y 1?

You should check if you've got it wired correctly (Vcc to RPi 3.3v, SDA to SDA, SCL to SCL, and GND to GND). Also ensure you're wired to I2C Bus 1 (pins 3 and 5) and not Bus 0 (pins 27 and 28). Also double check that you've enabled I2C on your pi and, if possible, works on a known good device. You could also double check your soldering. If everything checks out, your ADC may just be dead.

Does this support multiple i2c addresses? can i configure them to use two of these with different addresses on the same bus? if so, how?

Yes, the ADS1115 supports multiple I2C addresses. I'm writing this from memory but I recall the default address is 0x48 and there is an addr pin on the device - tie the addr pin to VDD and you get address 0x49. Just lookup the data sheet on google all the info about using the device and how to set the addresses is in the data sheet. I did have a project, in the past, where I used 2 of these devices on addresses 0x48 and 0x49 I2C and everything worked fine. Hope that helps.

Can I run several of these on the same i2c bus, but with different ground references? I'd like to have one of these "per cell" in a battery string.

If your not using common ground with your bus then the signal that is being sent to the bus won’t be a closed circuit resulting in error.

Where do I find the schematic and sample code?

Adafruit has Arduino library and example code. Specification sheets can be found at www.ti.com.

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HiLetgo ADS1115 16 Bit 16 Byte 4 Channel I2C IIC Analog-to-Digital ADC PGA Converter with Programmable Gain Amplifier High Precision ADC Converter Development Board for Arduino Raspberry Pi

HiLetgo ADS1115 16 Bit 16 Byte 4 Channel I2C IIC Analog-to-Digital ADC PGA Converter with Programmable Gain Amplifier High Precision ADC Converter Development Board for Arduino Raspberry Pi

Product ID: 29058420

Details

Brand
HiLetgo
Maximum Supply Voltage
5.5 Volts
Minimum Supply Voltage
2 Volts
Mounting Type
Board Mount
Number of Pins
8

⚡2.0V-5.5V wide voltage range

🔄4 multiplexed input channels

🔢16-bit ultra-precise ADC

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Description

⚙️ Elevate your DIY projects with precision and power — don’t get left behind!

MULTI CHANNEL MASTERY - Seamlessly switch between 4 analog inputs with a built-in multiplexer for versatile projects.
PLUG PLAY I 2 C INTERFACE - Effortless integration with Arduino, Raspberry Pi, and other microcontrollers via I2C bus.
PROGRAMMABLE GAIN AMPLIFIER - Boost tiny signals up to 16x for unmatched sensitivity and accuracy.
POWER SAVVY SINGLE SHOT MODE - Optimize energy use with auto shut-down and adjustable sampling rates from 8 to 860 samples/sec.
PRECISION THAT POWERS INNOVATION - Experience crystal-clear 16-bit resolution for your most demanding sensor data.

The HiLetgo ADS1115 is a compact, high-precision 16-bit ADC converter board featuring 4 analog input channels and an I2C interface. It supports a wide voltage range (2.0V to 5.5V) and includes a programmable gain amplifier for enhanced signal detection. Ideal for microcontrollers lacking analog inputs, it offers flexible sampling rates and power-efficient modes, making it a must-have for advanced Arduino and Raspberry Pi development.

Specifications

ASIN	B01DLHKMO2
Best Sellers Rank	#74,941 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #103 in Signal Converters
Brand Name	HiLetgo
Customer Reviews	4.4 4.4 out of 5 stars (166)
Interface	I2C
Manufacturer	HiLetgo
Material Type	ferrite
Maximum Supply Voltage	5.5 Volts
Minimum Supply Voltage	2 Volts
Mounting Type	Board Mount
Number of Channels	4
Number of Pins	8
Part Number	3-01-1062-A

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1996 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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The delivery time was excellent, and the packaging was secure.

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