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DISCRIPTION
Many of our Qwiic products draw very little current when in standby, but there are some that draw considerably more. Products like our top-end u-blox GNSS boards in particular. There are times when you wish you could switch them off to save power, and the Qwiic Power Switch (QPS) allows you to do exactly that!
Based on the PCA9536 4-Bit I2C I/O expander, the QPS can completely disconnect any attached devices so you can minimize your current draw and extend your battery life when you need to.
The QPS also includes a PCA9306 level-translator which acts as a bus isolator. Want to mix 400kHz and 100kHz I2C devices on the same bus? The QPS will let you do that too! You can isolate the slower devices while you talk to the fast ones. You can leave the slower devices powered up while you do this, or completely switch them off. It’s your choice.
If that wasn’t enough, we’ve broken out the two unused GPIO pins so you can use those as extra inputs or outputs for your project too!
Our Arduino Library includes a comprehensive example showing how you can: switch the power; isolate the I2C bus; and use those extra GPIO pins.
Pair some QPSs with the SparkFun Qwiic Mux and you can now not only talk to multiple devices that share the same I2C address, you can selectively switch them off too!
Need extra Qwiic cables? This set covers all the options.
The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.
FEATURES
DOCUMENTS
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회사명 : 원테크
| 사업자등록번호 : 671-34-00660 [사업자정보확인]
| 주소 : 서울특별시 구로구 경인로53길 15 (중앙유통단지) 다동 3123호 통신판매업 신고 : 제 2019-서울구로-1690호 | 연락처 : 02-6679-8533 | FAX : 02-6679-8532 | 개인정보보호 책임자 : 한혜정 | 대표자 : 한혜정 contact : kkseo2@naver.com for more information |
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