CHESTER-X10
This article describes the CHESTER-10 extension module.
Module Overview
CHESTER-X10 is a backup power supply module for CHESTER. The primary power input is an external 6-28 VDC line (VIN). The module provides also charging the single cell Li-Pol battery. Charging current is set to 450 mA. The module comes with protected single cell Li-Pol battery 3.7V 2000 mAh. Integrated ADC convertor allows to measure the input voltage (VIN / GND) and the battery voltage (BAT+ / BAT-).
Electrical Specification
- Input voltage range (VIN): 5-28 V
- Nominal battery voltage: 3.7 V
- Battery charging current: 450 mA
- Minimum recommended battery capacity: 1000 mAh.
Included Battery Specification
- Model: LP103454-PCM-LD
- 3.7V 2000mAh single cell Li-Po battery
- Integrated protection circuit
- Dimension: 56.0 x 34.5 x 10.3 mm
CHESTER Pin Configuration Diagram
Pin Configuration and Functions
| Position | Signal Name | Signal Description |
|---|---|---|
| 1 | GND | System ground signal |
| 2 | BAT- | Battery - (*) |
| 3 | BAT- | Battery - (*) |
| 4 | BAT+ | Battery + (*) |
| 5 | BAT+ | Battery + (*) |
| 6 | GND | System ground signal |
| 7 | GND | System ground signal |
| 8 | VIN | DC power supply voltage input (5-28V) |
*Note: Use only a single cell 3.7V Li-Pol (or Li-Ion) battery with integrated protection circuit. Do not short circuit the battery!
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
