DFRobot
Gravity: 0-10V 15-bit High-Precision Dual-Channel ADC Module
· MPN: DFR1184
The Gravity 0–10V ADC Module is a high-precision dual-channel analogue-to-digital converter designed to interface industrial-grade 0–10V sensors with microco...
The Gravity 0–10V ADC Module is a high-precision dual-channel analogue-to-digital converter designed to interface industrial-grade 0–10V sensors with microcontrollers and Linux-based systems. Built on the Texas Instruments ADS1115, it delivers 15-bit resolution (0.375 mV per step) with ±2 mV accuracy across the full 0–10V input range.
The module bridges the voltage gap between high-output industrial sensors (pressure transducers, flow meters, wind speed sensors) and low-voltage controllers like Arduino and Raspberry Pi — no external signal conditioning required. Dual I²C and UART interfaces with the standard Gravity 4-pin connector make integration straightforward.
Key Features
- 15-Bit Resolution – 0.375 mV steps with ±2 mV measurement accuracy
- 0–10V Input Range – Direct interface with industrial-standard sensors
- Dual-Channel Input – Read two analogue signals simultaneously
- ADS1115 ADC Chip – Programmable gain amplifier (PGA) and internal voltage reference
- I²C and UART – Flexible communication for microcontrollers and PLCs
- Gravity Connector – Standard 4-pin interface for quick wiring
- Wide Supply Voltage – 3.3V to 5V DC operation
Specifications
- ADC Chip: ADS1115
- Input Range: 0–10V
- Resolution: 15-bit (0.375 mV)
- Accuracy: ±2 mV
- Communication: I²C / UART
- Supply Voltage: 3.3–5V DC
Ideal For
- Industrial automation — pressure, flow, and temperature monitoring
- Environmental monitoring — water quality, wind speed, humidity
- Energy management — voltage signal tracking from meters and inverters
- Bridging 0–10V industrial sensors to Arduino, Raspberry Pi, or PLCs
Package Contents
- 1× Gravity 0–10V 15-bit Dual-Channel ADC Module
- 1× Gravity 4-Pin I²C/UART Cable
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- Programmable gain amplifier
- A built-in amplifier whose gain can be changed in software to make small input signals easier to measure. This matters because choosing the right gain can improve detail for small sensors, but too much gain can make the input range too small.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
- voltage reference
- A stable voltage the ADC compares inputs against when converting them to numbers. A more stable reference helps produce more consistent measurements, especially in precision sensing and instrumentation.
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Sensors & Input
Supplier page — dfrobot.com
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