CS107e Spring 2026

CS107e is Computer Systems from the Ground Up. Read more about the course and review answers to common questions from prospective students and enrollment information.

When and where

(discussion forum)

(RISC-V simulator)

RISC-V cheatsheet

D1-H User manual

Mango Pi pinout

Compiler Explorer

This week in CS107e

Week 6
Lecture Mon 5/4	Sensor Input ( slides, code ) Reading gpio inputs, how electrical signals can be used to observe physical phenomena, analog to digital conversion, protocols I2C and SPI. Readings: Wikipedia entry analog-to-digital conversion Protocols: I2C and SPI libextra has i2c and spi driver code written by aweseome Curis team An excellent reference book on sensors is "Make: Encyclopedia of Electronic Components Volume 3: Sensors" by Charles Platt and Fredrik Jansson. You can access the online version via Stanford Libraries Safari Books portal https://searchworks.stanford.edu/view/13211489.
Lab/assign	Lab 5: Keyboard Surfin' ( writeup ) Prelab to prep before lab.	Assignment 5: Keyboard and Simple Shell
Lecture Fri 5/8	Graphics and the framebuffer ( ) Representing color, framebuffer memory, drawing, fonts Readings: RGB color mixer from CS Field Guide cdecl for unraveling C types Documentation for Mango Pi Display Engine HDMI spec

See schedule for entire quarter.

Meet the team

Aditri

Ashley

Daniel

Elias

Frances

Joe

Julie

Nifemi