Thomas Vikström / Alphabet Public

Target: Nordic nRF52840 DK (Cortex-M4F 64MHz) Clone this project

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Alphabet

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Data (2,052 samples)

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O.1.csv (StorageFile)-13.csv.2qd15mjs

ID: 121359735

Label: O

Sample length: 84ms

S.1.csv (StorageFile)-52.csv.2qd3bvq9

ID: 121359674

Label: S

Sample length: 108ms

V.1.csv (StorageFile)-71.csv.2qdin8l4

ID: 121359345

Label: V

Sample length: 81ms

L.1.csv (StorageFile)-29.csv.2qdn9a1c

ID: 121359204

Label: L

Sample length: 90ms

Z.1.csv (StorageFile)-42.csv.2qdin79c

ID: 121359410

Label: Z

Sample length: 105ms

BACKSPACE.1.csv (StorageFile)-4.csv.2qducja9

ID: 121358932

Label: BACKSPACE

Sample length: 117ms

SPACE.1.csv (StorageFile)-68.csv.2qduck81

ID: 121358893

Label: SPACE

Sample length: 111ms

BACKSPACE.1.csv (StorageFile)-27.csv.2qducjcq

ID: 121358930

Label: BACKSPACE

Sample length: 99ms

Model accuracy (Unoptimized (float32))

Validation set

92.6%

Test set

90.3%

On-device performance (Nordic nRF52840 DK (Cortex-M4F 64MHz), Quantized (int8))

Latency

1 ms.

Peak RAM usage

1.8K

Flash usage

22.9K

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Dataset summary

Data collected

3m 30s

Sensors

x, y, z @ 333.3Hz

Labels

A, B, BACKSPACE, C, D and 23 others

Project info

Project ID	77262
Project version	1
License	No license attached
No. of views	218,250
No. of clones	8