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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K.1.csv (StorageFile)-7.csv.2q3i4bt0

ID: 121360247

Label: K

Sample length: 147ms

K.1.csv (StorageFile)-15.csv.2q3i4c0k

ID: 121360240

Label: K

Sample length: 138ms

SPACE.1.csv (StorageFile)-47.csv.2qducjq5

ID: 121358911

Label: SPACE

Sample length: 108ms

J.1.csv (StorageFile)-32.csv.2q3i4b92

ID: 121360270

Label: J

Sample length: 66ms

I.1.csv (StorageFile)-28.csv.2qdn9bm7

ID: 121359093

Label: I

Sample length: 81ms

A.1.csv (StorageFile)-24.csv.2q8ln7g3

ID: 121359901

Label: A

Sample length: 108ms

S.1.csv (StorageFile)-35.csv.2qd3bvha

ID: 121359687

Label: S

Sample length: 99ms

J.1.csv (StorageFile)-11.csv.2q3i4c0b

ID: 121360239

Label: J

Sample length: 60ms

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	169,587
No. of clones	8