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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S.1.csv (StorageFile)-56.csv.2qd3btr7

ID: 121359727

Label: S

Sample length: 102ms

M.1.csv (StorageFile)-28.csv.2qdn98nn

ID: 121359260

Label: M

Sample length: 111ms

H.1.csv (StorageFile)-16.csv.2qdn9clf

ID: 121359042

Label: H

Sample length: 132ms

E.1.csv (StorageFile)-11.csv.2qdn9e80

ID: 121358973

Label: E

Sample length: 111ms

U.1.csv (StorageFile)-63.csv.2qd6ss5r

ID: 121359606

Label: U

Sample length: 81ms

G.1.csv (StorageFile)-23.csv.2qdn9cu7

ID: 121359035

Label: G

Sample length: 123ms

unknown.1.csv (StorageFile)-12.csv.2q88ouhg

ID: 121359930

Label: unknown

Sample length: 75ms

L.1.csv (StorageFile)-32.csv.2q3i4d96

ID: 121360183

Label: L

Sample length: 69ms

Model accuracy (Unoptimized (float32))

Validation set

92.6%

Test set

90.3%

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

Latency

3 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	146,563
No. of clones	8