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This article describes the CHESTER-X7 extension module.

Module Overview

The CHESTER-X7 provides one differential input for current probes or other industrial sensors and one single ended voltage input up to 28 V. The module implements also 5V boost converter allows powering the current probes.

CHESTER Pin Configuration Diagram

Pin Configuration and Functions

PositionSignal NameSignal Description
1+VSystem positive rail (*)
2GNDSystem ground signal
3VDDSystem VDD rail 3.0 V
4VINVoltage input (0 - 28V)
5GNDSystem ground signal
6INPPositive differential input
7INMNegative differential input
8VOUT5.0 V power supply output

*Note: The system positive rail voltage depends on CHESTER power supply option.

Schematic diagram

A schematic diagram is useful if you program low-level hardware-related code or if you're just curious about how the system is designed.

Module Drawing