Original 8 x AA battery holder with 5.5mm/2.7mm Plug and On/Off Switch – PartsCountry

Description

The SparkFun Qwiic Power Switch (QPS) gives you the power to manage your Qwiic devices more efficiently. Many Qwiic boards, especially high-power ones like our high-accuracy GNSS boards, draw significant current even in standby mode. With the QPS, you can selectively turn off these devices to conserve energy and extend your battery life.

However, the QPS offers even more functionality; it includes I2C bus isolation, allowing you to mix 100kHz and 400kHz I2C devices on the same bus without conflict. Isolate slower devices to avoid slowing down communication with faster ones.

For added flexibility, the QPS also provides two extra GPIO pins that can be used as inputs or outputs to control other components in your project. It works seamlessly with the SparkFun Qwiic Mux, enabling you to control and power multiple devices, even those sharing the same I2C address.

Our Arduino Library makes integrating the QPS into your projects easy, with comprehensive examples for power switching, bus isolation, and GPIO control.

Note: Boards and cables are NOT included

Get Started with the Sparkfun QWIIC Power Switch Guide

Features

• PCA9536
  • 4-Bit I²C to Parallel Port Expander
  • Operating Voltage (V_CC): 2.3V to 5.5V
  • (Note: Qwiic operation?must?be limited to 3.3V)
  • Operating Temperature: -40??C to +85??C
  • 400kHz Fast I²C Bus
  • Input/Output Configuration Register
  • Polarity Inversion Register
  • Internal Power-On Reset
  • No Glitch on Power Up
  • Standby Current Consumption (Typical): 0.2??A
  • I²C Address:?0x41
• PCA9306
  • Dual Bidirectional I²C Bus Voltage-Level Translator
  • Lockup-free Operation for Isolation
• DMG2305UX P-Channel MOSFET
  • 52m? (0.052 Ohms) typical on-resistance
• IN and OUT Qwiic Connection Ports
• IN and OUT I²C Pull-Up Resistors
• 2x Extra GPIO Pins
• IN and OUT Power LEDs
  • Can be disabled for low-power applications
• Jumpers
  • IN power LED
  • OUT power LED
  • IN I²C Pull-Up Resistors
  • OUT I²C Pull-Up Resistors
• Board Dimensions: 1.0in. x 1.0in. (25.4mm x 25.4mm)
• Weight: 2.40g

Resources

• Schematic
• Eagle Files
• Board Dimensions
• Hookup Guide
• Datasheets
  • PCA9536 4-Bit I²C and SMBus I/O Expander
  • PCA9306 Dual Bidirectional I²C Bus and SMBus Voltage-Level Translator
  • DMG2305UX P-Channel MOSFET
• Arduino Library
• GitHub Product Repo