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CHESTER-X8

This article describes the CHESTER-X8 extension module.


Module Overview​

CHESTER-X8 implements precise low zero g offset 3-axis accelerometer ADXL355 providing the resolution up to 3.9 μg/LSB and measurement range ±2g, ±4g, ±8g.

CHESTER Pin Configuration Diagram​

Terminal block pins 1–8 mapped to VDD, GND, DIO1, SCL, SDA, DIO2, GND, +V

Pin Configuration and Functions​

PositionSignal NameSignal Description
1VDDSystem VDD rail 3.0 V
2GNDSystem ground signal
3DIO1User digital input / output #1
4SCLI2C / SCL
5SDAI2C / SDA
6DIO2User digital input / output #2
7GNDSystem ground signal
8+VSystem positive rail (*)

*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.

CHESTER-X8 R1.0 schematic: ADXL355 accelerometer on the I2C bus with interrupt outputs routed to GP0/GP1

Module Drawing​

CHESTER-X8 placement drawing with slot signals on top and I2C and DIO terminals on bottom