shu/nrf52840-i2c-scanner
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
1 Commit 1 Branch 0 Tags 42 KiB
Rust 68.1%
Nix 27.5%
RPC 4.4%
20fa0560bb
Go to file
Sebastian Hugentobler 20fa0560bb
initial commit
2024-05-20 15:32:00 +02:00
.cargo initial commit 2024-05-20 15:32:00 +02:00
src initial commit 2024-05-20 15:32:00 +02:00
.gitignore initial commit 2024-05-20 15:32:00 +02:00
build.rs initial commit 2024-05-20 15:32:00 +02:00
Cargo.lock initial commit 2024-05-20 15:32:00 +02:00
Cargo.toml initial commit 2024-05-20 15:32:00 +02:00
deny.toml initial commit 2024-05-20 15:32:00 +02:00
flake.lock initial commit 2024-05-20 15:32:00 +02:00
flake.nix initial commit 2024-05-20 15:32:00 +02:00
memory.x initial commit 2024-05-20 15:32:00 +02:00
README.md initial commit 2024-05-20 15:32:00 +02:00
rust-toolchain.toml initial commit 2024-05-20 15:32:00 +02:00

README.md

nRF52840 DK I2C Scanner

Quick and simple program to scan for used I2C addresses on an (nRF52840 DK)[https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK].

Setup

Connect I2C as follows:

GND -> GND
VCC -> VDD
SDA -> P0.03
SCL -> P0.04

Software

Either use nix and enter the dev shell with nix develop or ensure that at least the following is installed:

Attach the dev-kit with USB, turn it on and run probe-rs list to verify the connection. It should show something akin to the following:

The following debug probes were found:
[0]: J-Link (J-Link) (VID: 1366, PID: 1051, Serial: 001050288663, JLink)

Run cargo run to compile the software and flash it. The resulting output will tell you at which addresses I2C devices were found.

Example output with a device at 0x27

0.014221 INFO  i2c device at 0x27