# Pro Micro RP2350 Pinout

**URL:** <https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469>\
**Category:** Raspberry Pi\
**Created:** [December 2, 2025, 2:52pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469 "2025-12-02T14:52:32Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![ponch0v](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ponch0v/32/10440_2.png) [@ponch0v](https://community.sparkfun.com/u/ponch0v)\
**Post date:** [December 2, 2025, 2:52pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/1 "2025-12-02T14:52:32Z")

</div>

Looking for a pinout of the Pro Micro Rp2350 thats not the schematic, but looks like it doesnt exist?

I specifically need to know SPI pins to connect a Seeed 1.47 LCD and PWM capable pins.

DIN -?

CLK -?

CS -?

DC (any gpio)

RST (any gpio)

BL (any gpio)

---

<div class="post-metadata">

**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [December 2, 2025, 7:36pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/2 "2025-12-02T19:36:36Z")

</div>

There are a lot of naming variations for SPI ([see list @ bottom](https://en.wikipedia.org/wiki/Serial_Peripheral_Interface)), so the labeling doesn’t always match expectations, but they are labeled in [the schematic](https://cdn.sparkfun.com/assets/6/2/1/0/8/SparkFun_ProMicro_RP2350.pdf)

You need to use these 3 for the ? ones…CO is pico, 21 is CS, SCK is clock

 ![image](https://canada1.discourse-cdn.com/sparkfun/original/2X/4/48efb07650b220ee0409428f1921c387272f1281.jpeg)

---

<div class="post-metadata">

**Author:** ![ponch0v](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ponch0v/32/10440_2.png) [@ponch0v](https://community.sparkfun.com/u/ponch0v)\
**Post date:** [December 2, 2025, 8:47pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/3 "2025-12-02T20:47:18Z")

</div>

Thanks @TS-Russell

What about PWM pins?

---

<div class="post-metadata">

**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [December 2, 2025, 9:03pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/4 "2025-12-02T21:03:26Z")

</div>

All GPIO on RP2350 are PWM-capable 🙂

---

<div class="post-metadata">

**Author:** ![ponch0v](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ponch0v/32/10440_2.png) [@ponch0v](https://community.sparkfun.com/u/ponch0v)\
**Post date:** [December 17, 2025, 8:15pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/5 "2025-12-17T20:15:05Z")

</div>

Working on creating an easier pinout diagram for this.

Can you verify this Russell? I went by section 1.2.3. GPIO Functions (Bank 0) in the datasheet but maybe there are some specific changes for the ProMicro?

 ![ProMicro_RP2350_Pinout](https://canada1.discourse-cdn.com/sparkfun/original/2X/c/c6de41dd505358bbb673a5b0cfd05b5c6a167170.png)

---

<div class="post-metadata">

**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [December 18, 2025, 11:55pm UTC](https://community.sparkfun.com/t/pro-micro-rp2350-pinout/67469/6 "2025-12-18T23:55:54Z")

</div>

Looks accurate to me, except HSTX is not supported on our board (it is supported by the chip but not implemented in our design)