# SPI and Asyncronous Serial Connections with RedBoard Artemis ATP?

**URL:** <https://community.sparkfun.com/t/spi-and-asyncronous-serial-connections-with-redboard-artemis-atp/69312>\
**Category:** Robotics\
**Tags:** processor\
**Created:** [July 28, 2026, 4:49am UTC](https://community.sparkfun.com/t/spi-and-asyncronous-serial-connections-with-redboard-artemis-atp/69312 "2026-07-28T04:49:02Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![B](https://avatars.discourse-cdn.com/v4/letter/b/ee7513/32.png) [@B](https://community.sparkfun.com/u/B)\
**Post date:** [July 30, 2026, 1:07am UTC](https://community.sparkfun.com/t/spi-and-asyncronous-serial-connections-with-redboard-artemis-atp/69312/7 "2026-07-30T01:07:00Z")

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Thank you, Yellowdog. I saw a device working. That device had just 4 wires for an encoder and 3 wires for a BLDC 3-Phase motor. In total just seven wires for one motor. Why does this encoder require eight SPI wires plus three PWM wires? Here is a discussion with the encoder AS5048A pins chart: [Gimbal 12V motor with encoder AS5048A? - #42 by PaulZC](https://community.sparkfun.com/t/gimbal-12v-motor-with-encoder-as5048a/66842/42) Thank you.

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