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Kevin Thomas
2026-03-19 15:01:07 -04:00
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WEEK09/WEEK09-01.md
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## Week 9
Operators in Embedded Systems: Debugging and Hacking Operators w/ DHT11 Temperature & Humidity Sensor Single-Wire Protocol Basics
### Exercise 1: Change the Sleep Duration
### Non-Credit Practice Exercise 1: Change the Sleep Duration
#### Objective
Find the `sleep_ms(2000)` call in the `0x001a_operators` binary using GDB, identify the immediate value `0x7d0` (2000) being loaded into `r0`, calculate the file offset, patch it to `0x1388` (5000) using a hex editor, and verify on hardware that the serial output now prints every 5 seconds instead of every 2 seconds.