# Gravity: 0-10V 15-Bit Dual-Channel High-Precision ADC Module for Arduino / Raspberry Pi / ESP32

**Type:** Product page · **SKU:** DFR1184 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/dfrobot-gravity-high-precision-0-10v-15bit-dual-channel-adc-module-arduino-raspberry-pi-esp32.html ([markdown](https://core-electronics.com.au/dfrobot-gravity-high-precision-0-10v-15bit-dual-channel-adc-module-arduino-raspberry-pi-esp32.html.md))

15-bit high-precision 0-10V ADC module with dual I2C/UART interfaces. Designed for Arduino, Raspberry Pi, and ESP32. For industrial automation &...

## Pricing

- **Price:** $21.35 (inc GST) — $19.41 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 5 more in 8–12 days.

## Description

The Gravity: 0-10V 15-Bit High-Precision ADC Module combines **dual-channel 0-10V input with I2C and UART interfaces**, offering unmatched flexibility for [Arduino](https://core-electronics.com.au/arduino.html), [Raspberry Pi](https://core-electronics.com.au/raspberry-pi.html), and [ESP32](https://core-electronics.com.au/development-boards/esp32.html) users. Featuring **15-bit resolution (0.3125mV accuracy**) and the Texas Instruments ADS1115 chip, it bridges industrial 0-10V sensors (e.g., pressure transducers, energy meters) with low-voltage microcontrollers. Perfect for automation, environmental monitoring, and IoT systems requiring stable, noise-resistant signal conversion.

**Industrial-Grade 0-10V Sensor Compatibility**

The module directly interfaces with industrial-standard 0-10V sensors, such as pressure transducers, flow meters, and wind speed sensors. It resolves the voltage mismatch between high-output sensors (0-10V) and low-voltage microcontrollers (e.g., [Arduino](https://core-electronics.com.au/arduino.html), [Raspberry Pi](https://core-electronics.com.au/raspberry-pi.html)), eliminating the need for external signal conditioning.

**15-bit Resolution with Enhanced Accuracy**

With a 15-bit ADC and ±2mV precision, the module captures subtle signal variations (e.g., 0.3125mV steps), making it suitable for applications requiring fine-grained data, such as water tank pressure monitoring or energy consumption analysis. The ADS1115’s PGA dynamically adjusts gain to maintain accuracy across the full 0-10V range.

**Flexible Communication Interfaces**

Dual I2C and UART protocols ensure compatibility with diverse controllers, from Arduino boards to industrial PLCs. The Gravity-4P connector standardizes wiring, reducing setup complexity for multi-sensor systems.

### Specification

- Chip: ADS1115
- Input Range: 0-10V
- Resolution: 15-bit (0.3125mV)
- Accuracy: ±2mV
- Communication: I2C/UART
- Supply Voltage: 3.3-5V DC
 
### Documents

- [Product wiki](https://wiki.dfrobot.com/SKU_DFR1184_Gravity_2-Channel_15Bit_0-10V_ADC_Module)
- [Accuracy Test Record](https://dfimg.dfrobot.com/5d57611a3416442fa39bffca/wiki/fb28e69b624ccf136ef9285a1e8724d1.pdf)
- [Schematic](https://dfimg.dfrobot.com/5d57611a3416442fa39bffca/wiki/f13b381d31deb381c972a9a08333e345.pdf)
- [2D CAD](https://dfimg.dfrobot.com/5d57611a3416442fa39bffca/wiki/445002e9a4bd02630996182bcfd0e021.jpg)
- [2D DXF](https://dfimg.dfrobot.com/5d57611a3416442fa39bffca/wiki/c43cb62bba77c08423e054ea7e4f72f2.rar)
- [3D STP](https://dfimg.dfrobot.com/5d57611a3416442fa39bffca/wiki/d9512baf3f6305880e7c901ab6560a9c.rar)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/D/F/DFR1184-5.jpg)