Hello everyone, I'm rather new to this and will appreciate any help that I can get.

I'm currently working on a project and I'm having trouble identifying a a few connections on the arduino pro mini 328. (https://www.hackster.io/Advanced/punch-activated-arm-flamethrowers-real-firebending-95bb80).

The schematic shows the "sdo" port on the accelerometer connects to the "miso" port on the arduino mini, but I can't find the "miso" port. I also can't find the "mosi" spot on the board.

I've included pictures of the board I received as well as the schematic. I'm not sure if maybe it's just under another name that I recognize, or if something else is going on.

Thank you for your time!

 

I was just looking at the purchase on amazon and realized something. I bought this board

Arducam PRO Mini Atmega328 Development Board 5V/16MHz 328 Compatible with Arduino https://www.amazon.com/dp/B01981EBBA/ref=cm_sw_r_cp_apa_JzvHzbQY0ZVKT

Instead of this board

Arduino Pro Mini 328 - 3.3V/8MHz https://www.amazon.com/dp/B004G53J6M/ref=cm_sw_r_cp_apa_HCvHzbZZ0XN0Z

I saw that someone asked if they were nearly the same and someone said yes.
The only difference I can see is the voltage and speed, the pin spots seem the same.

 

The ATmega328 datasheet shows the pins of the chip so you can identify which chip pins perform the SPI functions. You can check for continuity between those chip pins and the board connections to find out where they go on your board.

 

The ATmega328 datasheet shows the pins of the chip so you can identify which chip pins perform the SPI functions. You can check for continuity between those chip pins and the board connections to find out where they go on your board.

Thank you!

 

Being completely honest, I couldn't figure out anything from that data sheet. 660 pages. Does anyone happen to know, or are they able to contribute anything else?

 

The schematic shows the "sdo" port on the accelerometer connects to the "miso" port on the arduino mini, but I can't find the "miso" port. I also can't find the "mosi" spot on the board.

On this page,
https://store.arduino.cc/arduino-pro-mini
it is said that
"In addition, some pins have specialized functions:
SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language."

SparkFun provides a picture showing the pins,
https://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/ProMini16MHzv1.pdf

 

Being completely honest, I couldn't figure out anything from that data sheet. 660 pages. Does anyone happen to know, or are they able to contribute anything else?

Page 3 of the datasheet shows the pin functions for each package style.

 

Thank you all very much, I appreciate the help while I try to learn this