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. 2023 Feb 16;13:e00402. doi: 10.1016/j.ohx.2023.e00402
Designator Component Number of Units Cost per Unit Cost for Project Total/Real Cost Source of Material Material Type
PG7 Cable Gland PG7 Cord Grip2 2 $0.90 $1.80 $8.99 Amazon Polymer
Hex Standoff Hex Standoff 2 $1.84 $3.68 $3.68 Digikey Brass
2.5 mm nuts 2.5 mm nuts1 6 $0.01 $0.06 $11.99 Amazon Steel
2.5 mm screws 2.5 mm screws1 4 $0.01 $0.04 $11.99 Amazon Steel
Pelican Case Pelican 1040 1 $14.95 $14.95 $14.95 Amazon Polymer
JST XH 4-pin JST2 2 $0.38 $0.76 $7.59 Amazon Non-specific
JST XH 3-pin JST3 1 $0.35 $0.35 $6.99 Amazon Non-specific
Hook-and-Loop Hook-and-Loop tie-down 1 $7.99 $7.99 $7.99 Amazon Nylon
Silicon Coating 422C-55MLCA 1 $26.43 $26.43 $26.43 Amazon Non-specific
Case Insert Acrylic sheet6 1 $5.70 $5.70 $5.70 McMaster Acrylic Plastic
Small diameter heat shrink Heat shrink4 14 $0.02 $0.28 $7.29 Amazon Polyolefin
Large diameter heat shrink Heat shrink4 4 $0.02 $0.08 $7.29 Amazon Polyolefin
Desiccant Desiccant 2 $0.16 $0.32 $6.99 Amazon Silica gel
Coin Cell Coin Cell 1 $0.95 $0.95 $0.95 Mouser Non-specific
Female Headers Female Headers 2 $0.90 $1.90 $1.90 Adafruit Non-specific
Male Headers Male Headers 3 $0.50 $1.50 $1.50 Adafruit Non-specific
Proto Doubler Proto Doubler 1 $7.50 $7.50 $7.50 Adafruit Non-specific
Cable Set Cable Set 2 $2.50 $5.00 $5.00 Adafruit Non-specific
Feather M0 WiFi Feather M0 WiFi 1 $34.95 $34.95 $34.95 Adafruit Non-specific
SD Card SD Card 1 $7.99 $7.99 $7.99 Amazon Non-specific
SHT30 SHT30 1 $24.95 $24.95 $24.95 Adafruit Non-specific
TSL2591 TSL2591 1 $6.95 $6.95 $6.95 Adafruit Non-specific
Teros 12 Teros 12 1 $246.00 $246.00 $246.00 Meter Group Non-specific
10,050 mAh battery 10,050 mAh battery 1 $29.95 $29.95 $29.95 Adafruit Non-specific
PCB PCB5 1 $2.96 $2.96 $8.90 OSHPark Non-specific
Hypnos Hypnos Board 1 $27.00 $27.00 $27.00 OPEnS Non-specific
1 - Sold in the same pack with 264 pieces holding 100 units each
2 - Sold in a pack of 20 units
3 - Sold in a pack of 20 units
4 - Sold in the same pack with 520 pieces holding 50 small and 30 large units
5 - Sold in multiples of 3
6 - Can make 4 base plates