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)-36.csv.2qd15mhc

ID: 121359741

Label: O

Sample length: 84ms

J.1.csv (StorageFile)-30.csv.2qdn9bcs

ID: 121359117

Label: J

Sample length: 57ms

H.1.csv (StorageFile)-29.csv.2q3e7uf8

ID: 121360327

Label: H

Sample length: 138ms

H.1.csv (StorageFile)-45.csv.2qdn9ckr

ID: 121359057

Label: H

Sample length: 129ms

F.1.csv (StorageFile)-9.csv.2q82jqm1

ID: 121359966

Label: F

Sample length: 111ms

J.1.csv (StorageFile)-29.csv.2q3i4b0c

ID: 121360271

Label: J

Sample length: 66ms

K.1.csv (StorageFile)-6.csv.2q3i4bsr

ID: 121360244

Label: K

Sample length: 141ms

A.1.csv (StorageFile)-6.csv.2q8ln7ht

ID: 121359891

Label: A

Sample length: 114ms

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	241,730
No. of clones	10